Cleaning and Painting Requirements

3.1.3.8 Accomplish a visual inspection to ensure all media, wastes from steel media blasting, and steel media blasting equipment is completely removed from the ship. Any media detected outside of the containment or left on the ship must be reported to the SUPERVISOR. 3.1.3.9 Recycled, non-metallic abrasive blast media conforming to MIL- A-22262, A-A-1722, or SSPC AB-1 can be used for abrasive blasting processes as specified in the invoking Work Item or Task Order. Sampling and testing of the recycled, non-metallic abrasive must meet the requirements for cleanliness (oil and conductivity) contained in SSPC AB-1 (paragraph 4.1.14 Water Soluble Contaminants, and 4.1.6 Oil Content) once per day. Recycling of non-metallic grit must be accomplished using equipment meeting CID A-A-60016. 3.1.4 Abrasive blast steel plates and shapes, and ferrous piping to NACE 2/SSPC- SP 10 of 2.5 and 2.9 and aluminum plates and shapes to SSPC-SP 17 of 2.5. Establish a surface profile that meets the requirements of 3.10.5, and coat, prior to shipboard installations except in the areas where weld joints remain to be accomplished, or unless specified otherwise in the invoking Work Item or task order. Material for fuel oil storage, fuel oil service, and diesel service tanks must not be painted. If these materials are to be installed in potable water, reserve 4 of 160 ITEM NO: 009-32 FY-24 feedwater, or freshwater drain collection tanks, they must be blasted and coated at a maximum 50 percent relative humidity from surface preparation checkpoint acceptance until cure to recoat time of final touch-up of the topcoat; for materials to be installed in all other areas, they must be blasted and coated at a maximum 85 percent relative humidity; this requirement supersedes Notes (26) and (29A). 3.1.4.1 For tanks, when masking is removed from the open ends of piping, the piping may retain tightly-adherent paint or remain bare up to 6 inches above the open end. Loose or delaminating paint must be prepared to SSPC-SP 2. 3.1.4.2 For non-ferrous piping which penetrates bulkheads, extend paint one to 2 inches (onto the pipe) beyond the bulkhead penetration pipe-weld. 3.1.4.3 Non-ferrous piping and cable pans, which are to be preserved shipboard, must be prepared in accordance with SSPC-SP 2 or SSPC-SP 16 of 2.5. For painted non-ferrous piping and cable pans in tanks of nuclear powered ships, surface preparation must be in accordance with SSPC-SP 16 of 2.5. The SSPC-SP 16 cleaning of non-ferrous piping may be accomplished utilizing ferrous abrasive media. Non-ferrous piping one inch in diameter or less must not be prepared or painted; do not remove intact adherent coating from piping. Surface profile is not required. 3.1.4.4 Diffusers in reserve feedwater dump tanks must not be painted. 3.1.4.5 Existing ferrous piping in tanks and voids may be prepared in accordance with NACE 4/SSPC-SP 7 of 2.5 and 2.9. 3.1.5 With the exception of potable water, reserve feedwater, freshwater drain collecting tanks, and nonskid system applications (MIL-PRF-24667) for steel substrates on surface ships, preconstruction primer may be retained and overcoated with applicable coating systems specified in Tables One through 5, if the preconstruction primer application process meets the following: 3.1.5.1 The preconstruction primer must be a zinc silicate material. Compatibility with the coating systems specified in Tables One through 5 must be confirmed by the coating manufacturer. 3.1.5.2 The preconstruction primer must be applied in a process which is certified to ISO 9001, SSPC-QP 1, or SSPC-QP 3. The surface must meet the requirements of NACE 2/SSPC-SP 10 of 2.5 and 2.9, and the process must be verified to meet the technical requirements of 3.10.2, 3.10.5, and 3.10.6 a minimum of once per shift. 3.1.5.3 The maximum relative humidity requirement of 3.10.1 must be 85 percent. 3.1.5.4 The secondary surface preparation, once the steel is installed shipboard, must be accomplished in accordance with 3.1.5.5 through 3.1.5.8. 3.1.5.5 Accomplish degreasing/cleaning prior to surface preparation to ensure that the surface is free of contaminants in accordance with SSPC-SP 1 of 2.5. 3.1.5.6 Brush-off blast clean the preconstruction primer-coated surface to NACE 4/SSPC-SP 7 of 2.5 and 2.9 to remove contaminants and loose paint. A thorough pressure wash of the area with fresh water at 3,000 to 5,000 pounds per square inch (PSI) may be substituted for the degreasing/cleaning to SSPC-SP 1 and the brush-off blast to NACE 4/SSPC- 5 of 160 ITEM NO: 009-32 FY-24 SP 7. For cumulative surface areas less than 10 percent of the total area, with no individual area greater than 10 square feet, an SSPC-SP 3 cleaning followed by a fresh water wipe may be substituted for NACE 4/SSPC-SP 7. 3.1.5.7 For weld joints where the preconstruction primer was burned away, and for any other areas of visible rust where the preconstruction primer had been previously damaged, clean the affected areas to the level required by applicable Line in Tables One through 5. 3.1.5.8 Upon completion of secondary surface preparation, the surface must meet the requirements of SSPC-SP 1 of 2.5. A visual water break test (ASTM F-21 or F- 22) on the surface may be used to validate SSPC-SP 1. 3.1.6 For touch-up, disturbed (terms are clarified in 3.6), and/or inaccessible areas, the minimum surface preparation must be that shown in Tables One through 8, except that an SSPC-SP 11 is acceptable for areas originally requiring a NACE 2/SSPC-SP 10 or NACE/SSPC- SP WJ-2. The decision that an area is inaccessible must be determined by inspection and agreed to by the SUPERVISOR prior to surface preparation. The degree of surface preparation required would be the maximum possible for that area, but could include retention of existing tightly adherent paint in inaccessible areas as defined by the SUPERVISOR. 3.1.7 Excluding potable water and reserve feedwater tanks in submarines and aircraft carriers, freshwater drain collecting tanks in aircraft carriers, and the reactor auxiliary room bilges in aircraft carriers, feathering is not required in tanks, voids, machinery spaces, or bilges. Feathering is required on the underwater hull and other areas as directed by the SUPERVISOR. Feathering is explained in more detail in 3.6.4. 3.1.8 Clean insulation and lagging prior to painting; ensure such areas are free of foreign matter and contaminants that would prevent adherence of paint. 3.1.9 Clean and dry all prepared and previously coated surfaces; ensure such surfaces are free of foreign matter that will affect adherence of coatings. Inclusions such as dust and debris in the coating film must be removed prior to the application of the next coat. 3.1.10 Record and restore existing painted labels, compartment designations, hull markings, interior photoluminescent tape/markings and other painted information which will be removed or covered during cleaning and coating operations, except for Visual Landing Aid (VLA) markings. VLA marking installation is addressed in 3.11.13. 3.1.11 Install masking material for protection of equipment and items not to be coated during preservation. Shipboard items not to be coated are listed in 2.2 and 2.6 and include bolted-crossbar aircraft securing fittings installed on aluminum flight decks. Remove masking material upon completion of final coating. 3.1.12 Clean shoe coverings must be worn when walking on prepared or coated surfaces. Shoe coverings must be selected that do not degrade and contaminate surfaces. 3.1.13 The requirements stated herein take precedence over all referenced documents if there is a conflict. 3.1.13.1 Unless otherwise specified herein, coatings listed on the QPL must be applied. All coatings are to be applied in accordance with the manufacturer’s NAVSEA-reviewed ASTM F718 product data sheet. The requirements stated herein take precedence over the NAVSEA-reviewed ASTM F718 data sheets if there is a conflict. The 6 of 160 ITEM NO: 009-32 FY-24 NAVSEA-reviewed ASTM F718 data sheets must supersede any other manufacturer’s ASTM F718 data sheets for that product, even if it is newer (more recent) than the NAVSEA-reviewed ASTM F718 data sheets. Copies of the NAVSEA-reviewed ASTM F718 data sheets are available from the Naval Surface Treatment Center (NST Center) website: http://www.nstcenter.biz. 3.1.14 Store coating system components in a cool, dry place. Do not expose to freezing temperatures or direct sunlight. For all coatings, storage ambient temperature must be maintained between 50 and 90 degrees Fahrenheit, or within the manufacturer’s recommended storage temperature range with written authorization from the SUPERVISOR. Low temperature nonskid systems (nonskid and primer) must be stored between 65 and 85 degrees Fahrenheit with the optimal storage temperature being between 70 and 80 degrees Fahrenheit. 3.1.14.1 Monitor the storage temperature over the 24-hour period prior to initiation of the application process and document the minimum and maximum temperatures. If recorded manually, temperature must be recorded once per shift (not to exceed 12 hours) during the 24-hour period. Manual readings are not necessary if monitoring equipment is used that tracks minimum and maximum temperature for the 24-hour period. 3.1.14.2 When approved by the SUPERVISOR, as an alternative to the storage monitoring requirement for coatings in 3.1.14.1, a maximum of 1 hour before application of products, measure individual components (after each is mixed, but before components are combined together) with a coating thermometer to confirm that each component of the system is within the required range. 3.1.14.3 When MIL-PRF-23236 Type VII coatings are applied using a plural component spray pump with recirculation and preheating, the 24-hour storage temperature requirement is waived. 3.1.15 All coating containers must be free of leaks and ill-fitting lids and manufacturer labels must be legible at time of application. 3.1.16 When applying paint, multiple coats must be of contrasting colors, unless specifically stated otherwise in Tables One through 8. 3.1.17 When using multiple component (such as 2-part) coating systems (e.g., epoxies and polyurethanes), use of "partial kits" is prohibited unless using verified proportioning equipment or other verified measuring equipment (gravimetric). 3.1.18 Use of partial kits is prohibited for nonskid. 3.1.19 For surface ships, for commercial underwater hull coating systems including anti-corrosive paints and antifouling paints, the manufacturer's primer must be used with its antifouling paint. No substitution is allowed. Successive coats of anti-corrosive paints must be of a contrasting color. Coats of antifouling paints must be of the colors stated in Tables One through 5. 3.1.19.1 For all ships, antifouling paint may be repaired, touched-up, and/or overcoated as defined in 4.3 with any other approved ablative antifouling system, and approved antifouling paints may be applied over any approved exterior anti-corrosive system. Antifouling paints must be Type I or II; this does not apply to foul release (Type III) coatings. 3.1.20 Apply the first coat of MIL-PRF-24647 antifouling paint when the last coat of epoxy paint is still tacky (as defined in 3.6.3) and in accordance with applicable NAVSEA- 7 of 160 ITEM NO: 009-32 FY-24 reviewed ASTM F718. If the maximum recoat time for the epoxy is exceeded, accomplish the overcoat window requirements of 3.5, then apply a tack coat of epoxy paint one to 2 milli-inches (mils) wet film thickness (WFT) over previously painted surfaces. The epoxy tack coat must be allowed to cure until tacky, and then the first full coat of antifouling paint must be applied. 3.1.20.1 The requirement for the last coat of epoxy to be tacky prior to application of the first coat of antifouling is waived if the NAVSEA-reviewed ASTM F718 states the minimum and maximum overcoat interval between the last coat of epoxy and application of the first coat of antifouling. 3.1.21 Mix and apply all coatings in accordance with the product’s NAVSEA- reviewed ASTM F718, except for invoked requirements for surface preparation and DFT as specified in Tables One through 8. 3.1.21.1 Coatings that are past their shelf life / expiration date must not be applied without written authorization from the SUPERVISOR. 3.1.22 The final coat of the underwater hull coating system on boats and small craft that are embarked on surface ships or otherwise deployed must be gray. 3.1.23 Utilize water-based latex fire retardant paints in preference to chlorinated alkyd-based fire retardant paints in areas where condensation, high humidity, and temperatures below 50 degrees Fahrenheit are not expected during application and cure. Such paints are available under MIL-PRF-24596. 3.1.24 Mix and apply the Navy Polyamide Epoxy MIL-DTL-24441 paints in accordance with the following, except the DFT must be as specified in Tables One through 8. The MIL-DTL-24441 paints’ mixing ratio is one-to-one by volume. The components of the various formulas are not interchangeable. Blend each component thoroughly prior to mixing the components. After mixing equal volumes of the 2 components, the mixture must be thoroughly stirred. For Type III only, the stand-in times listed below must be observed. There is no induction time for Type IV. 3.1.24.1 Stand-in time (induction time) for MIL-DTL-24441 Type III is considered to be the time immediately following the mixing of components A and B, during which the critical reaction period of these components is initiated and is essential to the complete curing of the paint. During stand-in time, the mixture must be thoroughly stirred at least once every 20 minutes to avoid hot spots caused by localized overheating from the chemical reaction. Surface Temperature at Worksite _ (Degrees Fahrenheit) _ Stand-In Time in Hours_____ 35 to 50 2 hours at 70 degrees Fahrenheit (paint temperature) 50 to 60 2 hours at worksite temperature 60 to 70 One hour to 1-1/2 hours at worksite temperature 70 to 90 1/2 to one hour at worksite temperature 3.1.25 For proper curing, the maximum application and cure temperature for MIL- DTL-24441 products must be 90 degrees Fahrenheit (ambient and surface temperature). 8 of 160 ITEM NO: 009-32 FY-24 3.1.26 Powder coating application may be used if approved by the SUPERVISOR; otherwise use applicable Lines in Tables One through 8. Powder coatings may be overcoated with liquid paints. Powder coated items require near white metal blast, NACE 2/SSPC-SP 10 surface preparation. Any use of a chemical pretreatment (e.g., phosphate conversion coatings) requires approval by NAVSEA. For areas listed in 3.7, quality assurance (QA) checkpoints are still required for items that are powder coated. 3.1.26.1 Powder coatings are not practical for use on large components or ship structure. Any large-scale applications to ship structure require approval by NAVSEA. 3.1.26.2 Powder coating is not authorized for use on components, covers, or any parts to be installed in potable, reserve feed water, or freshwater drain collecting tanks aboard nuclear powered ships. 3.1.26.3 For surface ships, SUPERVISOR approval must denote specific items or classes of items and applications. 3.1.26.4 For submarines, powder coating may be used if approved by the SUPERVISOR. Thermoplastic powder coatings (such as vinyls, nylons, polyethylenes, and polypropylenes) are not authorized for interior submarine applications and powder coatings are prohibited for use on those components and coating applications governed by reactor plant paint schedules. Application of thermoset powder coatings to approved components using the electrostatic spray method are to be accomplished in accordance with Uniform Industrial Process Instruction 0631-901, “Electrostatic Powder Coating” or equivalent as approved by the SUPERVISOR. Interior and exterior miscellaneous metal components to be powder coated must be non-reactor plant miscellaneous components. 3.1.26.5 Air flasks may be powder coated as approved by the SUPERVISOR. 3.1.27 For peel and stick nonskid (MIL-PRF-24667 Type XI, Composition PS), interior and exterior applications on surface ships must be in accordance with NAVSEA Standard Items (see Note 4.10). Exterior applications require material designated as coarse on NAVSEA-reviewed manufacturer’s instructions. 3.1.27.1 For submarines, peel and stick nonskid are approved for limited interior application during Chief of Naval Operations availabilities in dry dock only. 3.1.27.2 Peel and stick nonskid must not be painted or color-topped for cosmetic purposes. MIL-PRF-24667 color topping is authorized as required for safety or VLA markings. 3.1.27.3 Peel and stick nonskids are mandatory for use on masts, antenna platforms, and yardarms receiving nonskid. Peel and stick nonskids are mandatory for use on all superstructure walking surfaces, ladders and platforms leading to the flight deck, missile platforms, and antenna platforms on LHA/LHD Class ships. 3.1.27.4 Do not install peel and stick nonskid on diamond plate. 3.1.27.5 Peel and stick nonskid must not be used in areas frequently contaminated with hydrocarbons (e.g. hydraulic fluid, fuel, oil) as well as pallet jack, and fork truck traffic areas. 9 of 160 ITEM NO: 009-32 FY-24 3.1.28 Paints used on interior spaces of submarines are approved under the Submarine Atmosphere Control Program and listed on the Submarine Material Control List. For interior use on submarines, only those MIL-PRF-23236 Type VII paints listed in Note (8A) may be used. For use in tanks, voids, and freefloods on submarines, only use paints listed in Table 8. 3.1.29 For submarines, inspections and repairs required by the SUPERVISOR must be accomplished before the prime coat is applied if using high solids paints. Upon completion of structural repairs, the affected areas must be abrasive blasted to NACE 2/SSPC-SP 10 prior to paint application unless otherwise specified. 3.1.30 Restrictions on repair activity personnel (which includes Contractors) working in propulsion plant spaces aboard nuclear powered ships must be in accordance with NAVSEAINST 4350.2 (Series) (Contract Work Onboard Nuclear-Powered Ships). 3.1.31 For nuclear powered ships, surfaces covered by a reactor plant paint schedule must use that schedule for all preservation and painting requirements for those surfaces. 3.1.32 For areas that require 100 percent preservation or structural repairs or modification, coating removal may be accomplished prior to starting the repairs without the requirements of 009-32 applying until full surface preparation can be accomplished in accordance with the applicable Table and Line. (I) "CLEANING" 3.1.32.1 Accomplish the requirements of SSPC-SP 1 of 2.5 prior to coating removal. For areas prepared to NACE/SSPC-SP WJ-2 of 2.5 and 2.9 with ultra high pressure waterjetting (UHP WJ) equipment, the requirement of initial degreasing/cleaning is waived. A visual water break test (ASTM F-21 or F-22) on the surface may be used to validate SSPC-SP 1 and NACE/SSPC-SP WJ-2 of 2.5 and 2.9. 3.1.33 For tank, void, vent plenum bolting ring, and manhole cover gasket seating surfaces, accomplish the requirements of SSPC-SP 15 of 2.5. Then apply one coat of appropriate MIL-PRF-23236 primer or tank system coating at 6-8 mils, or 2 coats of appropriate MIL-DTL- 24441 tank system coating at 2-4 mils/coat. Maintain relative humidity at a maximum of 85 percent. This requirement supersedes Notes (26) and (29A). 3.1.34 Coatings must not be thinned. 3.2 Stripe Coat Requirements: 3.2.1 For all areas where stripe coating is required, as denoted in Tables One through 8, apply stripe coat in accordance with applicable NAVSEA-reviewed ASTM F718 data sheet to edges, weld seams, welds of attachments and appendages, cutouts, corners, butts, foot/handholds, pipe welds, and other mounting hardware (non-flat surface). Stripe coat these areas after the previous coat has dried and inspections in accordance with 3.10.9 have been completed. The stripe coat must encompass all edges as well as at least a one inch border outside each edge and weld. As directed by the SUPERVISOR during final touch-up of all tank coatings including potable water, reserve feedwater, or freshwater drain collecting tank, stripe coat requirements are waived for individual areas not greater than 1/2 inch in diameter and cumulative areas less than one square foot for each tank work zone. For submarines, solvent- based paints must have the stripe coat applied by brush. Flow exposed welds that have undergone contouring for hydrodynamic considerations do not require stripe coating. 10 of 160 ITEM NO: 009-32 FY-24 3.2.1.1 Each stripe coat must be of the specified paint system and must be a different color from both the paint over which it is being applied and the next coat in the system (if a product only comes in 2 colors, the stripe coat must contrast with the color of the previous coat). Full coat inspection must be conducted prior to stripe coat application. 3.2.2 A stripe coat is no longer specified for MIL-PRF-23236 Type VII paints. 3.2.3 Excluding aluminum substrates, stripe coats are not required when applying coatings to non-ferrous metals or corrosion resistant steels. Stripe coat aluminum in accordance with Tables One through 8. 3.3 Cure time is dependent on temperature; products applied at lower temperature will need more time to cure. This includes low temperature coatings. Cure time of each coat must be in accordance with NAVSEA-reviewed ASTM F718 unless otherwise specified in the following requirements or as specified in Note (6) for surface ships and Note (4A) for submarines: 3.3.1 Drying time between coats of a specified paint for potable, reserve feedwater, and freshwater drain collecting tanks must be a minimum of 36 hours (for paint applied to more than 2 percent of the tank surface area) or 12 hours (for paint applied to 2 percent or less of the tank surface area) at a minimum temperature of 70 degrees Fahrenheit (substrate and ambient), using heated air if necessary to maintain temperature. Ventilation must be sufficient to ensure continuous flow of air through the tanks with at least one complete air change every 4 hours. For potable water tanks coated with MIL-PRF-23236 Type VII Class 9 and Class 9/18 paints and reserve feedwater tanks on non-nuclear ships coated with MIL-PRF- 23236 Type VII Class 11 and 11/18 paints, see Note (55) for surface ships and Note (39A) for submarines. 3.3.2 Following paint application, potable, reserve feedwater, and freshwater drain collecting tanks must be continuously ventilated with a minimum of one complete air change every 4 hours for at least 5 consecutive days prior to filling with water. During the ventilation period, maintain a minimum tank temperature of 70 degrees Fahrenheit (substrate and ambient). Verify and document daily that ventilation is properly installed and operating (document on QA Checklist Form Appendix 1). For potable water tanks coated with MIL-PRF-23236 Type VII Class 9 and Class 9/18 paints and reserve feedwater tanks on non-nuclear ships coated with MIL- PRF-23236 Type VII Class 11 and 11/18 paints, see Note (55) for surface ships and Note (39A) for submarines. 3.3.2.1 For potable water tanks, once the final topcoat is fully cured (as defined in the product's NAVSEA-reviewed ASTM F-718 data sheet), inspect the surface for cleanliness. Verify that the surface meets the requirements of SP 1 by wiping all tank surfaces with potable water applied to clean, light-colored rags. When wiping, the surface must, when viewed without magnification, be free of all visible oil, grease, dust, dirt, and other foreign matter. Any surfaces producing visible contamination on a rag must be re-cleaned until both rag and surface are visually free of contamination. As an option to wiping the tank, the tank must be completely filled with potable water and drained at least twice to ensure tank cleanliness. 3.3.3 Prior to application of any MIL-PRF-24635 over an epoxy paint, the epoxy must be dry to the touch but not fully cured (as defined on the epoxy paint’s NAVSEA-reviewed ASTM F-718 as cure to service) before overcoating. The epoxy must be overcoated with MIL- PRF-24635 within 7 days of the epoxy application. Dry to the touch is defined in ASTM D1640. 3.3.4 Prior to application of any water-based paint, such as MIL-PRF-24596, over an epoxy paint, allow the epoxy to dry for at least 16 hours. 11 of 160 ITEM NO: 009-32 FY-24 3.4 Overcoating of MIL-DTL-24441 with MIL-DTL-24441: 3.4.1 If less than 7 days has elapsed since the application of the prior coat, the next coat may be applied after visual inspection to confirm the absence of grease, dirt, salts, or other surface contaminants. If surface contamination is suspected as a result of visual inspection or for other reasons, the entire surface must be cleaned in accordance with SSPC-SP 1 of 2.5. The next coat of MIL-DTL-24441 must be applied after surfaces are completely dried. 3.4.2 If more than 7 days but less than 30 days has elapsed since the application of the prior coat, the entire surface must be cleaned in accordance with SSPC-SP 1 of 2.5. Ensure the surface has fully dried, and then apply a mist coat (one to 2 mils WFT) of the last coat applied or Formula 150. The mist coat must be allowed to cure (dry) for 4-8 hours; then apply the next full coat of the system. This condition can only be met one time during the painting system application. For areas less than or equal to 2 percent of the surface being prepared, the process in 3.4.3 may be used. 3.4.3 If more than 30 days has elapsed since the application of the prior coat, the entire surface must be cleaned in accordance with SSPC-SP 1 of 2.5. After allowing the surface to dry, the surface must be lightly abraded to degloss the epoxy, using a brush-off abrasive blast (preferred), power sanding, or hand sanding using 80-120 grit, then apply the next full coat of the system. 3.5 Overcoating of Non-MIL-DTL-24441 Epoxy Paints: 3.5.1 Follow the manufacturer's NAVSEA-reviewed ASTM F718 instructions for the allowable overcoat window, but must not to exceed 30 days. The 30-day maximum may be extended beyond 30 days if specifically documented on the NAVSEA-Reviewed ASTM F718 and approved by NAVSEA. Where the base coat and topcoat are provided from different manufacturers, the term "manufacturer" refers to the manufacturer of the base coat. Application of a mist or tack coat must not restart the 30-day window. 3.5.1.1 If either the manufacturer's NAVSEA-reviewed ASTM F718 instructions or the 30-day window (or a specific extension approved by NAVSEA) has been exceeded, the paint must be reactivated by following the instructions of the manufacturer’s NAVSEA-reviewed ASTM F718 for reactivating the surface, as approved by the SUPERVISOR. 3.6 Clarification of Terms: 3.6.1 Touch-up of in-service coatings (i.e., not newly-installed coatings) is defined differently within this Standard Item for surface ships and submarines. 3.6.1.1 Except for potable, reserve feedwater, or freshwater drain collecting tanks, touch-up is defined within this Standard Item for submarines as preservation operations on cumulative surface areas less than 10 percent of the total area being preserved, as approved by the SUPERVISOR. Included under touch-up operations are new and disturbed surfaces of less than 4 square feet. Except for potable, reserve feedwater, or freshwater drain collecting tanks, the documentation requirements of 3.7 and 3.8.1 are replaced with Appendix 9 or Naval Shipyard QA Checklist Form Appendix 6 for touch-up of in-service coatings (3.8.1.1 is still required), and the requirements of 3.10.2, 3.10.5, 3.10.6, 3.10.7, and 3.10.9 must be verified by the accomplishing activity as (I) inspections. 3.6.1.2 For potable, reserve feedwater, or freshwater drain collecting tanks on nuclear powered surface ships, touch-up is defined within this Standard Item as 12 of 160 ITEM NO: 009-32 FY-24 preservation operations on cumulative surface areas less than one percent of the total area being preserved, with no individual area greater than 10 square feet. Included under touch-up operations are new and disturbed surfaces of less than 10 square feet. 3.6.1.3 For surface ship areas, except for potable, reserve feedwater, freshwater drain collecting tanks on nuclear powered surface ships and LHA/LHD flight deck nonskid, touch-up is defined within this Standard Item as preservation operations on cumulative surface areas less than or equal to 10 percent of the total area (e.g., bilge, tank, space, etc.) being preserved, with no individual area greater than 10 square feet. Included under touch-up operations are new and disturbed surfaces of less than 10 square feet. The documentation requirements of 3.7 and 3.8 are waived for touch-up of in-service coatings, and the requirements of 3.10.2/3.11.3, 3.10.5/3.11.4, 3.10.6/3.11.5, 3.10.7/3.11.6, and 3.10.9/3.11.10 must be verified by the accomplishing activity as (I) inspections. 3.6.1.4 Except for reserve feedwater and freshwater drain collecting tanks on nuclear powered ships and submarines, touch-up of in-service MIL-DTL-24441 and MIL-PRF-23236 paint systems may be performed interchangeably using any of these paints specified in the applicable lines of Tables One through 8. MIL-PRF-23236 coatings must not be installed in reserve feedwater and freshwater drain collecting tanks. 3.6.1.5 On surface ships and submarines, excluding potable water, reserve feedwater, fresh water drain collecting tanks and flight deck nonskid, for new and disturbed areas of individual areas 2 square feet or less totaling less than 0.03 percent of the total surface area, the requirements of Notes (26) and (29A) do not apply. The requirements to perform and document the following paragraphs are waived: 3.10.1/3.11.2, 3.10.2/3.11.3, 3.10.5/3.11.4, 3.10.6/3.11.5, 3.10.7/3.11.6, and 3.10.9/3.11.10; the documentation requirements of 3.7 and 3.8 are also waived. The requirement of 3.10.1.1 must be accomplished, but not documented. For paint application, apply paints in accordance with Tables One through 8 with the following exception: apply only one coat of primer on prepared substrate, followed by topcoat product applied to overlap intact paint by a minimum of one inch around primer. 3.6.1.6 For areas of touchup of 6 square inches or less total cumulative area within a tank, visual inspection only of the touchup area is authorized. All other QA requirements specified in 3.10 are not required. 3.6.2 Disturbed surfaces are defined as any surface that requires cleaning and/or coating due to existing coating finish being damaged in the accomplishment of work specified by the Work Item or task order. 3.6.2.1 Exterior surfaces of underwater hull closure plates/hull accesses and their associated welds will not be considered disturbed surfaces and must be cleaned, prepared, painted, and documented in accordance with the applicable area. For surface ships, deviations from the requirements may be authorized by the SUPERVISOR based on size, location, application, or severity of condition of the paint system being applied. 3.6.2.2 Interior surfaces of underwater hull closure plates/hull access- associated welds must have surface preparation in accordance with 3.1.6. 3.6.2.3 The word "new" in "new and disturbed surfaces" refers to all material installed on the ship by the repair activity regardless of source. 3.6.3 Tacky is defined as that curing (drying) timeframe when a fingertip pressed lightly, without twisting, against the paint film leaves no residue on the finger, until the time when the finger leaves only a slight impression on the surface of the paint film. 13 of 160 ITEM NO: 009-32 FY-24 3.6.4 Accomplish feathering of adherent paint remaining after the required surface preparation by creating a smooth, 1 to 2 inch wide transition area between the prepared surface and the adherent paint using hand or power tool sanding or grinding. 3.6.5 Solvent wipe is defined as cleaning a surface by pouring solvent on a clean, light colored rag and subsequently wiping the surface. 3.6.6 Initiation of the application process is defined as the time when a coating is removed from storage for staging at the worksite, but is not the start date/time for applying the coating. 3.6.7 Creditable Cure Time (CCT) is defined as the accrued time for which data shows compliance with environmental requirements collected in accordance with 3.10.1. CCT is accrued based on established environmental data collection intervals (e.g., 4 hours, 12 hours, 24 hours) when consecutive environmental readings are shown to satisfy the requirements of 3.10.1. Regardless of elapsed overall time between consecutive acceptable environmental readings, CCT equivalent to a single data collection interval (e.g., 4 hours, 12 hours, 24 hours) is accrued. 3.7 The following ship structural surfaces are defined as critical coated areas: SURFACES TYPE OF SUBSTRATE Underwater hull, including appendages and surfaces below the waterline up to and including the boottopping All Cofferdams Steel and aluminum Hangar, flight, vertical replenishment, and aircraft elevator platform decks Steel and aluminum Recovery, Assist, Securing and Traversing (RAST) track trough (including sumps) Steel and aluminum Well deck overheads and enclosed boat handling areas Steel and aluminum Surface ship bilge, drain sump, and drain well Steel and aluminum Interior surfaces of vent plenums, defined as combustion air intakes (gas turbine, diesel, and steam), including Collective Protection System (CPS) intake vent plenums and other vent system plenums with openings greater than 7 square feet Steel and aluminum Tanks and floodable voids (including sumps, covers, and bolting rings) Steel and aluminum Non-floodable voids (at waterline or below) Steel and aluminum Surface ship Vertical Launch System (VLS), MK-41 Steel and aluminum DDG-51 Class top of stacks (i.e., 05 level weather decks and bulwarks) Steel Gas turbine exhaust uptake spaces and trunks Steel All recesses on submarines below the upper boottop Steel Interior surfaces of submarine sail (fairwater) and superstructure when SSPC-SP 10 is accomplished Steel 14 of 160 ITEM NO: 009-32 FY-24 SURFACES TYPE OF SUBSTRATE Aircraft Launch and Recovery Equipment (ALRE) System defined herein as catapult wing voids, catapult troughs, catapult exhaust blowdown trunks, barricade stanchions and wells, catapult jet blast deflector pits, and associated void spaces Steel Arresting gear sheave foundations Steel Valve Regulated Lead Acid (VRLA) Battery Compartment at conversion Steel Submarine rescue vehicle seating surfaces Steel 3.7.1 Record and maintain in-process records in Coating QA Tool Kit (CQATK) paperless QA program (or NAVSEA-approved equivalent) or on QA Checklist Form Appendices as blasting, coating, inspections, and tests are being accomplished. CQATK program and installation setup are available upon request from the Global Distance Support Center (GDSC), http://www.navy311.navy.mil, 1-855-NAVY-311. 3.7.1.1 For surface ship nonskid work in multiple areas to be coated, a detailed sketch must be completed for each area or zone of installation to indicate the area of work. 3.7.1.2 QA documentation must include 3.7.1.3 through 3.7.1.11. QA Checklist Form Appendices of 2.1 are available at http://www.nstcenter.biz . 3.7.1.3 Ambient and substrate surface temperatures, relative humidity, and dew point during preservation process (QA Checklist Form Appendix 1); 3.7.1.4 Cleaning/degreasing prior to surface preparation inspection results (QA Checklist Form Appendix 2 or Naval Shipyard QA Checklist Form Appendix 6); 3.7.1.5 Surface profile readings and surface preparation method, including name of abrasive and QPL-22262 revision number from which the product was purchased (as applicable), or copy of NAVSEA product approval letter. (QA Checklist Form Appendix 3 or Naval Shipyard QA Checklist Form Appendix 3 or 3A); 3.7.1.6 Surface conductivity test results (QA Checklist Form Appendix 4); 3.7.1.7 Surface cleanliness test results for dust (QA Checklist Form Appendix 5); 3.7.1.8 Name of coating, manufacturer, batch number, and date of expiration (QA Checklist Form Appendix 6); 3.7.1.9 Elapsed time between coats (QA Checklist Form Appendix 6); 3.7.1.10 DFT measurements (QA Checklist Form Appendix 7) and/or WFT measurements (QA Checklist Form Appendix 7A or Naval Shipyard QA Checklist Form Appendix 7); 15 of 160 ITEM NO: 009-32 FY-24 3.7.1.11 Minimum and maximum storage temperatures of the coating over the 24-hour period prior to use (QA Checklist Form Appendix 1). 3.7.2 If using QA Appendices, submit one legible copy, in hard copy or approved transferrable media, of recorded in-process information on QA Checklist Forms to the SUPERVISOR within 72 hours of completion of preservation of each separate location listed in the invoking Work Item or task order. 3.8 Determine the type of surface preparation required and coating system options that are available for use in accomplishing the work. 3.8.1 Accomplish receipt inspection for coatings applied on aircraft carriers and submarines to areas listed in 3.7 (excluding underwater hull and nonskid systems) upon receipt from the manufacturer. Accomplish testing of the following properties in accordance with the requirement of the applicable specification and the manufacturer’s certificate of compliance or conformance test data form. Receipt inspect coating components for density, fineness of grind, viscosity, and condition in container. Receipt inspect mixed coating for dry hard time, sag resistance, and color of dry film. Receipt inspection testing is not required for those characteristics that have satisfactory test data provided on the manufacturer's certificate of compliance or conformance test data forms, or another shipyard's receipt inspection test data forms that meet the applicable coating specification requirements. Submit one legible copy, in hard copy or approved transferrable media to the SUPERVISOR upon request. 3.8.1.1 On all ships for coatings applied to areas listed in 3.7, maintain on file the original manufacturer's certificate of compliance and material conformance test data in accordance with Section 11 of 2.2. Submit one legible copy, in hard copy or approved transferrable media to the SUPERVISOR upon request. 3.8.1.2 For areas listed in 3.7, if requested by the SUPERVISOR, prepare and submit one legible copy, in hard copy or approved transferrable media, of Coatings Application Product Summary (CAPS) sheet (QA Checklist Form Appendix 8). 3.9 Maintain the following certifications for accomplishing preservation operations to areas as listed in 3.7. Information for these certifications can be found at www.ampp.org/certification. 3.9.1 Coating inspectors must be certified in accordance with the NAVSEA Basic Paint Inspector (NBPI) course, NACE International Coating Inspector Program (CIP) Level 1 or higher, or SSPC Protective Coating Inspector Program (PCI) Level 2. Coating inspectors mu st also have a minimum of 2 years of marine coatings related work experience. 3.9.2 Organizations performing blasting operations (abrasive and waterjetting) or coating application must be certified in accordance with QP 1 of 2.5 (with the exception of the Coating Application Specialist (CAS) requirement) or NAVSEA-approved equivalent. 3.9.2.1 For components that are removed from the ship and preserved, ISO 9001 or QP 3 may be substituted for QP 1. 3.9.3 Spray painters must be certified in accordance with SSPC C-12, SSPC C-14, SSPC CAS Level 2, or NAVSEA-approved equivalent. For equivalent certifications, a copy of the NAVSEA approval letter must be maintained by the repair activity. 16 of 160 ITEM NO: 009-32 FY-24 3.9.4 Plural Component Pump Tenders and Applicators must be certified in accordance with SSPC C-14 or NAVSEA-approved equivalent certifications. For equivalent certifications, a copy of the NAVSEA approval letter must be maintained by the repair activity. 3.9.5 Blasters must be certified in accordance with SSPC C-7, SSPC CAS Level 2, or NAVSEA-approved equivalent. For equivalent certifications, a copy of the NAVSEA approval letter must be maintained by the repair activity. 3.9.6 Blasters performing UHP WJ must be certified in accordance with SSPC C- 13 or NAVSEA-approved equivalent. For equivalent certifications, a copy of the NAVSEA approval letter must be maintained by the repair activity. 3.10 For all coating systems except surface ship nonskid, accomplish preservation operations in accordance with the following. For surface ship nonskid system application, refer to 3.11. 3.10.1 For coatings, take ambient and substrate surface temperatures, relative humidity, and dew point from conditions on-site, in close proximity to the structure being coated, for all areas listed in Tables One through 8. 3.10.1.1 Unless otherwise stated within the Notes of Tables One through 8, and as noted in 3.10.1.2, 3.10.1.3, and 3.11.2.3, coatings must be applied only when the ambient temperature and the temperature of the prepared substrate are 50 degrees Fahrenheit or greater and a minimum of 5 degrees Fahrenheit above the dew point. The maximum relative humidity must be 85 percent. For areas listed in 3.7, readings must be documented on QA checklist Form Appendix 1. 3.10.1.2 In areas where MIL-PRF-23236 Type VII Class 15B products are specified, these products are exempt from dew point and relative humidity requirements. 3.10.1.3 The only products that may be applied below 50 degrees Fahrenheit are those specified in the Tables and Notes for use below 50 degrees Fahrenheit. 3.10.1.4 These environmental readings must be taken from the surface preparation acceptance checkpoint to 48 hours of creditable cure time after the application of the final coat. Creditable cure time is defined in 3.6.7. For areas preserved under 3.6.1.1/3.6.1.3, environmental readings must be taken at the surface preparation acceptance checkpoint to 24 hours after application of the final coat. If a final coat fully cures to immersion/service in less than 48 hours (24 hours for 3.6.1.1/3.6.1.3), as defined in its NAVSEA-reviewed ASTM F718, environmental readings for that final coat must be taken until the product's cure to immersion/service time is reached. For potable, reserve feedwater, and freshwater drain collecting tanks on submarines and aircraft carriers, during inspection of each coat, the (G) point inspection must validate that the environmental readings during application and curing of that coat comply with applicable environmental requirements. All components blasted and primed in accordance with 3.1.4 must have environmental readings taken until the cure to recoat time is reached. 3.10.1.5 For potable, reserve feedwater, and freshwater drain collecting tanks, environmental readings must be taken from the surface preparation acceptance checkpoint to 5 days of creditable cure time after application of the final coat, unless otherwise stated in Tables One through 8. 3.10.1.6 The preferred method of measurement is use of a data logger. If a data logger is used, it must collect data at a minimum of every one hour. A manual reading must 17 of 160 ITEM NO: 009-32 FY-24 be taken once every 24 hours and at every evolution involving (G)-points with a separate calibrated device independent of the data logger. For areas listed in 3.7, manual readings must be documented on QA Checklist Form Appendix 1. Maintain all data logger recorded data for the requirements of 3.10.1 with the QA appendices. 3.10.1.7 For areas where a data logger is not used, environmental readings must be manually taken every 4 hours and at every evolution involving (G)-points except as modified below. For areas listed in 3.7, readings must be documented on QA Checklist Form Appendix 1. 3.10.1.8 For areas where relative humidity is maintained (through the use of dehumidification equipment or forced hot air) below 50 percent and the surface temperature is greater than 5 degrees above the dew point, manual readings where a data logger is not used are required once every 12 hours and at every evolution involving a (G)-point. This requirement also applies to coatings covered under 3.10.1.2. 3.10.1.9 Environmental readings at (G)-points are only required within the timeframes given in 3.10.1.4 and 3.10.1.5. 3.10.1.10 Environmental readings must be monitored during application of powder coating products, but they do not need to be recorded. 3.10.1.11 Critical coated areas environmental requirements will be documented in accordance with paragraph 3.7.1. (I) or (I) (G) "CLEANLINESS" (See 4.4) 3.10.2 Accomplish degreasing/cleaning prior to surface preparation to ensure that the surface is free of contaminants in accordance with SSPC-SP 1 of 2.5. For areas prepared to NACE/SSPC-SP WJ-2 of 2.5 and 2.9 with UHP WJ equipment, the requirement of initial degreasing/cleaning is waived. A visual water break test (ASTM F-21 or F-22) on the surface may be used to validate SSPC-SP 1 and NACE/SSPC-SP WJ-2 of 2.5 and 2.9. For areas listed in 3.7, document on QA Checklist Form Appendix 2 or Naval Shipyard QA Checklist Form Appendix 6. 3.10.2.1 Inspect the surface a maximum of 4 hours prior to start of coating removal to ensure accomplishment of SSPC-SP 1. For areas listed in 3.7, document on QA Checklist Form Appendix 2 or Naval Shipyard QA Checklist Form Appendix 6. 3.10.3 Except for tanks, surface preparation by abrasive blasting is prohibited on submarine interior surfaces, with the exception that use of self-contained Recyclable Encapsulated Abrasive Media material conforming to SSPC-AB 4 is permissible in submarine machinery spaces. 3.10.4 Limit the square footage of surfaces being prepared for preservation to an area that can be coated prior to the occurrence of flash rusting and/or oxidation. Remove any flash rust prior to coating, except as follows: 3.10.4.1 Surfaces cleaned by waterjetting must meet the applicable NACE/SSPC Standard for flash rust. For submarines, the first coat of epoxy primer must be applied within 24 hours of coating removal if removal is by non-automated waterjetting. 3.10.4.2 The water used in waterjetting must not include detergents or inhibitors without written approval from the coating manufacturer and the SUPERVISOR. 18 of 160 ITEM NO: 009-32 FY-24 (I) or (I)(G) "SURFACE PROFILE" (See 4.4) 3.10.5 One profile measurement must be recorded for every 100 square feet for the first 500 square feet; for each additional 1,000 square feet or less, one profile measurement must be taken. Profile measurements must be taken in accordance with Method B or Method C of 2.8. For Method B of 2.8, one profile measurement must be the average (mean) of 10 individual readings. For profile measurements taken in accordance with Method C of 2.8, use profile tape suitable to read subject profile (i.e., coarse to extra-coarse plus). For Method C of 2.8, one profile measurement must be the average (mean) of 2 individual readings. If any individual reading is found to be greater than or equal to 5 mils, use Method B of 2.8 in those areas to determine existing profile. The retention of profile tape is not required. For areas listed in 3.7, document surface profile on QA Checklist Form Appendix 3 or Naval Shipyard QA Checklist Form Appendix 3 or 3A. 3.10.5.1 Following blasting or waterjetting operations, surface peak-to- valley profile must be checked. Surface profile must be validated on areas without visible pitting. For Method B of 2.8, each profile measurement must be between 2 and 4 mils. For Method C of 2.8, each profile measurement must be between 2 and 4 mils, with no individual tape reading less than one mil or greater than or equal to 5 mils. If such profile is not present, repair activity must establish the proper profile. 3.10.5.2 Following power tool cleaning to SSPC-SP 11 or SSPC-SP 15 of 2.5, surface profile must be checked. Profile measurements must be 2 - 4 mils for areas listed in 3.7 and submarine bilges and one – 4 mils for all other areas where accessible (inaccessible areas must be determined by inspection and agreed to by the SUPERVISOR). 3.10.5.3 For products without a NAVSEA-reviewed F718, manufacturer’s instructions may be substituted. 3.10.5.4 Conversely, excessive use of mechanical tools (grinders, sanders, chippers, etc.) must be minimized to avoid metal loss. Overly aggressive blasting which causes metal thickness loss over the amount required for surface profile must also be avoided. Excessive depth of profile can cause problems with poor coating performance. A greater than recommended surface profile requires a paint film be applied to totally cover the profile to prevent pinpoint or flash rust. The increase in paint film thickness also increases the susceptibility of solvent entrapment, causing blistering and premature failure of the coating. 3.10.5.5 Due to the potential for excessive metal loss, for LCS 2 Class ships and SSN-21 and SSN-774 Class submarines, only the following power tools may be used to obtain an SSPC-SP 11 surface: needle guns, bristle blasters, and rotary peening tools. On LCS 2 Class ships and submarines, any areas of potential metal loss by corrosion or mechanical means must be documented and reported to the SUPERVISOR. 3.10.5.6 Recyclable Encapsulated Abrasive Media material conforming to SSPC-AB 4 may not establish a sufficient surface profile. If this method is employed and the profile is insufficient to meet the requirements, the repair activity must establish a sufficient surface profile. 3.10.5.7 Waterjetting will not establish a surface profile. If this method is selected by the repair activity and a surface profile does not exist or is insufficient to meet the requirements, the repair activity must establish a sufficient surface profile. (I)(G) "CONDUCTIVITY MEASUREMENT" 19 of 160 ITEM NO: 009-32 FY-24 3.10.6 For surfaces listed in 3.7 (excluding potable water and reserve feedwater tanks on submarines, and freshwater drain collecting tanks on aircraft carriers), accomplish the requirements for conductivity measurements as follows: 3.10.6.1 Following coating removal, accomplish conductivity measurements in accordance with the requirements of 3.10.6.3. 3.10.6.2 Additionally, accomplish a visual inspection within 4 hours prior to application of each coat. If evidence of contamination of the surface exists, accomplish the requirements of 3.10.6.3. 3.10.6.3 Accomplish surface conductivity checks using available field or laboratory test equipment on the freshly prepared surface. One reading must be taken for every 200 square feet for the first 1,000 square feet. One reading must be conducted for every additional 1,000 square feet or less. For immersed applications, such as tanks and bilges, conductivity measurements must not exceed 30 micro-siemens/cm. For non-immersed applications, conductivity measurements must not exceed 70 micro-siemens/cm. Conductivity samples must be collected using a product that meets the requirements of ANSI/NACE SP0508 of 2.9, “Methods of Validating Equivalence to ISO 8502-9 on Measurement of the Levels of Soluble Salts.” Document on QA Checklist Form Appendix 4. 3.10.6.4 If a conductivity check fails, water wash (3,000–5,000 PSI) the affected areas with potable water. Dry the affected areas and remove all standing water. Accomplish surface conductivity checks on affected areas in accordance with 3.10.6.3. Repeat step until satisfactory levels are obtained. 3.10.6.5 If, after a freshwater wash, the measurements exceed required levels, a salt remover may be used; however, the only salt remover products that may be used for a coating system are those specified on that coating's NAVSEA-reviewed ASTM F718. (I) or (I)(G) "SURFACE PREPARATION" (See 4.4) 3.10.7 Verify surface preparation for the coating systems specified in the Work Item or task order and Tables One through 8 are in accordance with 2.5 and 2.9. For areas listed in 3.7, document on QA Checklist Form Appendix 3 or Naval Shipyard QA Checklist Form Appendix 6. 3.10.7.1 For surface ships, surface cleanliness for dust must be accomplished for the underwater hull and documented on QA Checklist Form Appendix 5. Surface cleanliness for dust must meet Rating 2, Class 2, of 2.10. One dust tape reading must be taken for every 200 square feet for the first 1,000 square feet; for each additional 1,000 square feet or less, one tape reading must be taken. The tape reading requirement is waived if the final stage of surface preparation for the entire surface is UHP WJ. 3.10.7.2 When waterjetting has been performed to a specified WJ level of cleanliness on a steel surface, and the level of flash rust (low, moderate, or high) cannot be agreed upon between the authorized coating inspector and the Contractor through the use of the written NACE/SSPC WJ standard or the SSPC-VIS 4 visual reference standard, the procedure in Attachment B must be used to resolve the dispute. 3.10.7.3 The checkpoints of 3.10.5, 3.10.6, and 3.10.7 can be accomplished concurrently. 20 of 160 ITEM NO: 009-32 FY-24 3.10.8 Coating systems must be applied and cured in accordance with this NAVSEA Standard Item and applicable NAVSEA-reviewed ASTM F718s as defined in 3.1.13. 3.10.8.1 For surface ship preservation of areas not listed in Tables One through 5, see the Tables in Section 1 of 2.2. For submarine preservation of areas not listed in Tables 6 through 8, see the Tables in 2.6. 3.10.8.2 Unless fully enclosed, (i.e., with containment), do not perform exterior paint application when sustained winds exceed 15 miles per hour (MPH). (I) or (I)(G) "COATING INSPECTION FOR EACH COAT" (Consists of Coating Thickness, Holidays, and Cleanliness) (See 4.4) 3.10.9 Inspect each Prime, Intermediate, Stripe, Tack, Mist, and Top Coat (including Capastic) as follows: 3.10.9.1 Accomplish DFT measurements of each coat applied for the coating systems listed in Tables One through 8. This excludes any stripe coats and draft marks. For areas listed in 3.7, document on QA Checklist Form Appendix 7. 3.10.9.2 Accomplish a visual holiday check on each coat of the system. For areas listed in 3.7, document on QA Checklist Form Appendix 7. Any holiday found must be identified and touched-up. These touched-up holidays do not constitute a new coat. Paint containing Optically Active Pigment (OAP) must be visually inspected using violet light. Where an OAP primer is used, each primer and topcoat must be visually checked using violet light. When this occurs, the inspector must use a violet-light flashlight conforming to ASTM E2501 to enhance the normal visual inspection process. An ASTM E2501 flashlight produces violet light that activates the fluorescent OAP. The inspector must wear yellow or amber-tinted glasses that block ultraviolet and violet light to accomplish the inspection. See ASTM E2501 for the light transmittance specification for tinted glasses and http://www.nstcenter.biz for a list of safety eyewear models that meet the specification. Guidance regarding OAP inspection practices is available in SSPC-TU 11. 3.10.9.3 Accomplish a visual inspection for surface cleanliness. If evidence of contamination exists, accomplish degreasing/cleaning a maximum of 4 hours prior to application of next coat to ensure removal of surface contaminants. For areas listed in 3.7, document on QA Checklist Form Appendix 7 or 7A or Naval Shipyard QA Checklist Form Appendix 6 or 7. If condition is UNSAT, then also use Appendix 2 or Naval Shipyard QA Checklist Form Appendix 6. 3.10.9.4 Accomplish a visual inspection for chloride or other contamination for areas listed in 3.7 (excluding potable water and reserve feedwater tanks on submarines, and freshwater drain collecting tanks on aircraft carriers). If evidence of chloride or other contamination exists, accomplish requirement of 3.10.6.4 on the affected area(s) approved by the SUPERVISOR, a maximum of 4 hours prior to application of next coat to ensure removal of surface contaminants. Document on QA Checklist Form Appendix 7 or 7A or Naval Shipyard QA Checklist Form Appendix 6 or 7. If condition is UNSAT, then also use Appendix 4 as required in 3.10.6.3 to 3.10.6.5. 21 of 160 ITEM NO: 009-32 FY-24 3.10.9.5 For MIL-PRF-23236 Type VII coatings, runs, drips and sags may appear. In areas where DFTs of runs, drips, and sags are 50 mils or less, no action is required; areas with DFTs in excess of 50 mils must be assessed by the SUPERVISOR. 3.10.10 For DFT readings required in 3.10.9.1, DFT readings for each coat must be taken in accordance with Method PA 2 of 2.5. When measuring full coats to determine total system thicknesses denoted in Tables One through 8, DFT readings must not be taken in areas where stripe coatings have been applied. When scanning technology is used in accordance with SSPC-PA 2 Appendix 10, the average DFT displayed in each batch will be recorded in Appendix 7. 3.10.10.1 WFT readings are required in lieu of DFT readings for any coat that must be in a tacky state (as defined in 3.6.3) when the next coat is applied, for non-metallic surfaces, for anti-corrosive and antifouling paint applied over Capastic and sprayable shields, and when applied over existing coatings. For metallic surfaces, the number of WFT spot readings must be 2 readings per 1,000 square feet. For non-metallic surfaces, the number of WFT spot readings must equal the number of DFT readings that would have been taken. When WFT readings are used in this manner, the sampling frequency, distribution, and acceptance criteria must be the same as described in SSPC-PA 2 of 2.5, except that only one WFT reading is required to represent a “spot measurement” instead of the three “gauge readings” defined in SSPC-PA 2. WFT equals DFT divided by percent solids by volume (when percent solids by volume is expressed as a decimal, i.e., 60 percent equals 0.60). For areas listed in 3.7, document on QA Checklist Form Appendix 7A or Naval Shipyard QA Checklist Form Appendix 7. 3.10.10.2 If any coat measures less than its specified DFT, apply an additional coat of that product. The total DFT of these 2 coats must not exceed the specified maximum thickness for the original coat as specified in Tables One through 8. If an additional coat is required, accomplish a cleanliness checkpoint in accordance with 3.10.9.3 prior to application of the additional coat. 3.10.10.3 During paint application, a WFT gauge must be used to verify the application of proper paint thickness for each coat of all coating systems listed in Tables One through 8. WFT readings must be taken to confirm this, but need not be recorded. 3.10.10.4 Except to remediate small, localized drips or sags totaling less than 0.03 percent of the coated area, excessive DFT must not be sanded to reduce DFT without approval of the SUPERVISOR. 3.10.10.5 MIL-PRF-23236 Type VII paints require additional DFT readings to be performed in accordance with Attachment A. These readings must be performed following the last coat of MIL-PRF-23236 Type VII paint on the areas where the stripe coat would have been applied. 3.10.11 With the exception of potable water, reserve feedwater, and freshwater drain collecting tanks, when performing QA inspections for holidays and DFT readings, for all areas where aesthetics are not an issue, permanent markers, as approved by the SUPERVISOR, are acceptable. These markings may be directly overcoated with the next coat of paint (or remain exposed if used on the final coat in an area where aesthetics are not an issue). 3.11 NONSKID. Except for peel and stick nonskid, which must have preservation operations as specified in 3.10, accomplish preservation operations for surface ship nonskid systems in accordance with the following: 22 of 160 ITEM NO: 009-32 FY-24 3.11.1 When installing nonskid systems to critical coated areas (listed in 3.7) within enclosed spaces, including exterior temporary structures for environmental control, the following conditions must be maintained for a minimum of 48 hours after application of each coat of the nonskid system: 3.11.1.1 Maintain sufficient volumetric air changes to satisfy 2.3 requirements that ventilation be provided in sufficient quantities to keep the concentration of coating solvent vapors below ten percent of their lower explosive limit. 3.11.1.2 Continuously maintain airflow into and out of the enclosed space to satisfy the requirements of 2.3. Fully open hangar doors satisfy 2.3 requirements. 3.11.1.3 Orient input air such that airflow is directed towards or across the deck and in the direction of the exhaust ventilation ports. Locate exhaust ventilation ports such that the bottom of the exhaust duct/opening is less than one foot from the deck surface to ensure that “heavier than air” coating solvent vapor is effectively removed from the enclosed space. 3.11.1.4 Evenly distribute input and exhaust ports such that uniform air movement throughout the enclosed space and across deck surface is maintained. Ensure airflow is not “short circuited” from input to exhaust by maximizing distance between input and exhaust ports. 3.11.1.5 Ensure the ventilation system remains operational and powered throughout application of the nonskid system regardless of whether personnel are in the enclosed space. 3.11.2 Accomplish the requirements of 3.10.1 (environmental) with the following additions: 3.11.2.1 Record ambient and substrate surface temperatures, relative humidity, and dew point readings at one-hour intervals during nonskid system application. 3.11.2.2 Unless fully enclosed (i.e., with a tent), do not apply nonskid primer when sustained winds exceed 15 MPH. 3.11.2.3 Unless the applicable NAVSEA-reviewed ASTM F718 is more stringent, ambient air temperature must be 55-100 degrees Fahrenheit, deck temperature for primer application must be 40-120 degrees Fahrenheit, and deck temperature for nonskid application must be 40-110 degrees Fahrenheit. Deck temperature must be a minimum of 5 degrees Fahrenheit above the dew point for nonskid system application. For application of Type VIII (low temperature) nonskid systems, ambient air and deck temperatures must be between 35 degrees Fahrenheit and the upper limit specified by the NAVSEA-reviewed ASTM F718. 3.11.2.4 Environmental requirements will be documented in accordance with paragraph 3.7.1. 3.11.3 Accomplish the requirements of 3.10.2 through 3.10.4 with the following additions: 3.11.3.1 If cleaning is performed via solvent wiping, after solvent wiping, the deck must be allowed to dry before application of any coating. No visible solvent must be present on deck surfaces prior to proceeding with the next process step. Solvent wiping is defined in 3.6.5. 23 of 160 ITEM NO: 009-32 FY-24 3.11.3.2 When a solvent wipe is performed, annotate Appendix 2 or Naval Shipyard QA Checklist Form Appendix 6 with type of solvent and time allowed to dry. 3.11.3.3 When cleaning exterior nonskid decks with High Pressure Water Cleaning (HP WC), cleanliness must meet the requirements of SSPC-SP WJ-4/NACE WJ-4 instead of SSPC-SP 1. 3.11.3.4 For tie-downs prepared to SSPC-SP 2, 3, or 15 of 2.5, the initial SSPC-SP 1 is waived if the final stage of surface preparation is UHP WJ in accordance with NACE/SSPC-SP WJ-2 of 2.5 and 2.9. (I) or (I)(G) “SURFACE PROFILE” (See 4.4) 3.11.4 Following blasting or waterjetting operations, surface peak-to-valley profile must be checked. Surface profile must be validated on areas without visible pitting. Accomplish the requirements of 3.10.5 for surface profile measurements. For Method B of 2.8, each profile measurement must be between 3 and 6 mils. For profile measurements taken in accordance with Method C of 2.8, use profile tape suitable to read subject profile (i.e., coarse to extra-coarse plus). For Method C of 2.8, one profile measurement must be the average (mean) of 2 individual tapes. For Method C of 2.8, each profile measurement must be between 3 and 6 mils, with no individual tape reading less than 2.5 mils or greater than, or equal to 5 mils. If any individual tape reading is found to be greater than, or equal to, 5 mils, use Method B of 2.8 in those areas to determine existing profile. If such profile is not present on decks and aircraft elevators, repair activity must establish proper profile. The maximum profile requirement is waived for carrier aircraft elevators prepared via waterjetting. The maximum profile requirement is 7 mils on aluminum aircraft elevators and CG-47 class flight decks when prepared by abrasive blasting. The retention of profile tape is not required. For areas listed in 3.7, document on QA Checklist Form Appendix 3 or Naval Shipyard QA Checklist Form Appendix 3 or 3A. 3.11.4.1 For nonskid areas that abrasive blast equipment or waterjet equipment cannot access, substrate must be prepared to SSPC-SP 11. Profile must be 2 – 6 mils where accessible. Underside of tie-downs must be prepared to SSPC-SP 2 or SSPC-SP 3 of 2.5; however, feathering requirements of 3.6.4 are waived, while remainder of tie-down must be prepared to SSPC-SP 15 of 2.5. 3.11.4.2 The requirements of 3.10.5.4 through 3.10.5.6 apply to nonskid systems. 3.11.5 Accomplish the requirements of 3.10.6 for conductivity measurements. 3.11.6 Accomplish the requirements of 3.10.7 for surface preparation. 3.11.6.1 Surface cleanliness for dust must be accomplished for nonskid flight decks and documented on QA Checklist Form Appendix 5. Surface cleanliness for dust must meet Rating 2, Class 2, of 2.10. Three individual readings must be taken every 100 square feet for the first 500 square feet. If the tape readings are consistent, only one tape reading must be taken for every 1,000 square feet remaining. The tape reading requirement is waived if the final stage of surface preparation for the entire surface is UHP WJ and the primer is applied within 6 hours of completion of surface preparation. If the primer is not applied within 6 hours of the last surface cleanliness for dust test, the tape readings must be accomplished for all surface preparation methods. 24 of 160 ITEM NO: 009-32 FY-24 3.11.6.2 For flight deck areas, not to include aircraft elevator platform decks, receiving a nonskid system and prepared to NACE/SSPC-SP WJ-2, a minimum of 20 percent of the total area receiving a nonskid system must be abrasively blasted to an NACE 2/SSPC-SP 10 level of cleanliness. The areas to be prepared to NACE 2/SSPC-SP 10 must be as directed by the SUPERVISOR. 3.11.7 Nonskid systems must be applied in accordance with the applicable Tables. A new nonskid system must overlap existing nonskid system to the minimum extent necessary to create a continuous film as agreed upon by the SUPERVISOR. 3.11.7.1 Nonskid must be rolled parallel to ship's main axis. Welds parallel with the direction of peaks and valleys must be cross-rolled. Cross-rolling must extend 3 to 6 inches on each side of the weld. The requirement to roll nonskid parallel to the ship's main axis is waived on LCS 2 class flight decks and any other areas with extruded aluminum plank decks as approved by the SUPERVISOR. In these areas, nonskid must be rolled perpendicular to the ship's main axis. 3.11.7.2 Nonskid material remaining in the can after nonskid is poured onto primed deck surface must not be removed from the can. 3.11.7.3 If probing the nonskid surface with a dull putty knife results in penetration of the putty knife into the nonskid, neither foot nor vehicular traffic must be permitted. 3.11.7.4 DFT measurements of nonskid primer in overlap areas must be no more than 15 mils. 3.11.8 Accomplish the requirements of 3.2 for stripe coat with the exception that stripe coat may precede prime coat. 3.11.8.1 For overcoating of stripe coat or stripe coating of the primer coat, refer to the applicable NAVSEA-reviewed ASTM F718. When the stripe coat is applied prior to overcoating with a full coat of primer, the stripe coat must be dry to touch in accordance with ASTM D1640. 3.11.8.2 A second full coat of proprietary nonskid primer listed on the QPL for MIL-PRF-24667 may be applied if approved by the SUPERVISOR. The second full coat satisfies the stripe coat requirement. 3.11.9 Nonskid application must begin within 36 hours of completion of the final full primer coat or the mist coat application. For areas not listed in 3.7, nonskid overcoating application must be in accordance with NAVSEA-reviewed ASTM F718. For areas listed in 3.7, use the following: 3.11.9.1 If nonskid application begins within 36 to 72 hours after completion of final full primer coat application, the primer coat must be solvent wiped with solvent required by the NAVSEA-reviewed ASTM F718. 3.11.9.2 If nonskid application begins within 3 to 7 days after completion of final full primer coat application, the primer coat must be solvent wiped with solvent required by the NAVSEA-reviewed ASTM F718, then lightly abraded, solvent wiped again, and a mist coat (one to 2 mils) of primer must be applied and allowed to cure to recoat. 25 of 160 ITEM NO: 009-32 FY-24 3.11.9.3 If the primer coat is not overcoated with nonskid within 7 days of final full primer coat application, the primer must be removed and the surface preparation repeated. For zone tie-in areas where the primer is to be overcoated with itself (up to 12 inches of overlap), the recoat window must be in accordance with the NAVSEA-reviewed ASTM F718; the primer must be solvent wiped with solvent required by the NAVSEA-reviewed ASTM F718, then lightly abraded, then solvent wiped again. 3.11.9.4 Aircraft carrier landing areas not overcoated with nonskid within 72 hours of primer application completion must have surface preparation repeated. 3.11.10 Accomplish the requirements of 3.10.9 through 3.10.11 for inspection of nonskid primer (full and stripe coats). (I) or (I) (G) "NONSKID MIXING AND APPLICATION" (See 4.4) 3.11.11 Accomplish the following requirements during initiation of the mixing and application process: 3.11.11.1 Visually verify that nonskid mixing blade is free of previously cured coatings, contaminants, or rust. 3.11.11.2 Verify that applicator meets NAVSEA-reviewed ASTM F718 mixing and application requirements, including: specified mixing equipment, pre-mix time, mix time, induction time, pot-life and any product specific application requirements. (I) or (I) (G) “NONSKID SPREAD RATE AND HOLIDAY INSPECTION” (See 4.4) 3.11.12 Verify that nonskid spread rate meets the following requirement: Types I, V, VI, VII, and VIII - 18 square feet/gallon minimum and 30 square feet/gallon maximum; Types II, III, IX and X - 23 square feet/gallon minimum and 35 square feet/gallon maximum; and, Types IV and X (sprayed) - 40 square feet/gallon minimum and 60 square feet/gallon maximum. The minimum spread rate for Types IV and X (sprayed) must be in accordance with the manufacturer’s NAVSEA-reviewed ASTM F718. Perform visual holiday inspection of nonskid and document on QA Checklist Form Appendix 7. Spread rate must be determined by the following formula: [(square feet coated) / ((gallons per kit) x (number of kits))]. 3.11.12.1 Holidays less than 4 square inches must be touched-up as follows: 1) solvent clean primer with solvent required in product NAVSEA-reviewed ASTM F718, 2) lightly sand exposed primer, 3) solvent clean sanded surface with solvent required in product NAVSEA-reviewed ASTM F718, and 4) apply nonskid to primer to approximate texture of surrounding nonskid. Overcoat window restrictions do not apply to touch-up of holidays in non- landing areas. Holidays less than 1/8 of a square inch must be exempt from touch-up. 3.11.13 Inspect the location and color of required VLA markings in accordance with Naval Air Warfare Center Aircraft Division (NAWCAD) Class Guidance Drawings, Air Capable Ship Aviation Facilities Bulletin, Amphibious Assault Ship Aviation Facilities Bulletin, Shipboard Aviation Resume (NAEC-ENG-7576), VLA General Service Bulletin No. 8 (latest revision) or by contacting the local NAWC (CAFSU/ASIR) Field Office. 3.12 For submarines, accomplish preservation of damping and acoustic tiles and surfaces in way of these tiles in accordance with the following. All exterior tiles and tiles inside tanks must be installed over a surface prepared to NACE 2/SSPC-SP 10 and painted with the preservation system indicated in Table 8. Surfaces beneath exterior tiles and tiles inside tanks are considered critically coated. Care must be taken to ensure blasting does not damage tiles. 26 of 160 ITEM NO: 009-32 FY-24 Surface preparation and preservation of steel restrained tiles must be as listed in Table 8. Paint only steel portions of SSBN/SSGN-726 Class acoustic baffles. Before overcoating tile that is currently coated, sweep blast the surface to roughen the existing paint. Non-steel restraining covers are not required to be painted except for antifouling purposes. Overspray of otherwise unpainted covers is acceptable. Full paint out of non-steel damping restraining covers, unrestrained damping, and acoustic tile (including Gradual Transition Coating) and covers is not intended. In interior spaces, exposed surfaces of acoustical absorptive treatments that are painted must be prepared to SSPC-SP 1 and must be painted with 1-2 mils of paint (avoid filling perforations) to match surroundings. 4. NOTES: 4.1 Wet space decks include sanitary spaces (washrooms, water closets, and showers), food service spaces (galley, scullery, butcher shop, bakery, meat prep rooms, and food service line), and trash compactor rooms. 4.2 Total DFT encountered during removal may exceed specified Table thicknesses. 4.3 Total removal of ablative coating is not required. An ablative antifoulant (AF) coating system must not be removed by blasting prior to its specified service life unless it is blistered, peeling, or otherwise damaged beyond repair. Stable and intact ablative AF coatings must be retained and overcoated. The total film thickness of the combined retained and freshly applied paint must comply with Table One/Table 6. When the Work Item or task order calls for overcoating of retained intact ablative AF coating, AF surfaces must be washed down with fresh water. For all ships except submarines and aircraft carriers, this fresh water washdown must be performed at 2,000 PSI as the vessel comes out of the water, in order to prevent slime and oxidized paint from drying on the hull and inhibiting leaching of the paint when the ship is returned to the water. For submarines and aircraft carriers, instead, within 24 hours of the hull being released by cognizant shipyard authorities, pressure wash with fresh water between 2,000 and 5,000 PSI. The surface must be cleaned and dried before new paint is applied. Apply any anti-corrosive (AC) paint to areas in need of repairs. Overcoat the AC paint with the approved AF paint of the same MIL-PRF-24647 Type. The Work Item or task order will specify the degree of removal. 4.4 The paragraphs referencing this note are considered an (I)(G) if the inspection/test is on a critical surface as listed in 3.7. If the inspection/test is not on a surface listed in 3.7, then the paragraph is considered an (I). 4.5 Refer to 009-03 of 2.1 as appropriate for requirements concerning potential exposure to toxic or hazardous substances and hazardous operations. 4.6 The repair activity may use environmental enclosures to control environmental conditions. 4.7 Preservation system repairs are an Unrestricted Operations (URO) Maintenance Requirement Cards (MRC) program attribute. 4.7.1 The Unrestricted Operations (URO) Maintenance Requirement Cards (MRC) program was developed by NAVSEA to monitor specific areas of interest to determine if the conditions of these areas are suitable for continued unrestricted operations. Maintaining the protective capability of the coating system is critical to maintaining structural integrity during the periods between inspections. For this reason, complying with requirements for coating system application for all aspects of the preservation process is essential. Other systems that impact the 27 of 160 ITEM NO: 009-32 FY-24 URO MRC program are Special Hull Treatment (SHT) application process, including Mold-In- Place (MIP), maintenance of cathodic protection systems (Impressed Current Cathodic Protection (ICCP) and anodes) and installation of various types of tiles (acoustic, damping, etc.). 4.7.1.1 Substrate preparation and preservation are not authorized/covered in this Standard Item for vertical launch system (VLS) bathtub area, thin line towed array (TLTA) interior, surfaces covered by SHT, propulsor, and retractable bow plane recesses on submarines. 4.7.2 Preservation work in submarine tanks and enclosed spaces is usually scheduled to occur when the tanks and spaces are opened and entered to perform URO MRC structural inspections. Any time a tank or other enclosed space is entered, if a URO MRC 003 structural inspection is not authorized, an inspector qualified in accordance with URO MRC 003 will perform a structural visual examination. 4.7.3 Any URO MRC item being blasted and painted will have a URO MRC hull survey inspection performed by an inspector qualified in accordance with URO MRC 003 prior to blasting and again prior to repainting. 4.8 Painting of rubber piece parts of pipe hangers is permitted in the following areas: Main Ballast Tanks (MBTs), freeflood areas, and internal tanks which are normally painted. The rubber piece parts include the liners, grommets, and inserts found in steel strap and steel block type pipe hangers; also included is the block rubber type pipe hangers. Prior to painting rubber piece parts in surface ship potable water and reserve feedwater tanks, existing paint must be removed to an SSPC-SP 2 level of cleanliness as approved by the SUPERVISOR. Do not paint rubber piece parts in surface ship FWDCTs, submarine RFTs, and hangers on nuclear piping that traverses other non-nuclear tanks. 4.9 Inspections such as URO inspections and inspection periodicities are addressed in 2.2 and 2.6. 4.10 For peel and stick nonskid, interior and exterior applications on surface ships in 3.1.27; Category II Standard Item 009-26 “Deck Covering Requirements; accomplish”, including Attachment G will be specified in the work item. 4.11 Unless otherwise noted, aircraft carriers, and boats and small craft are considered surface ships throughout this document. The tables are split up between surface ships and submarines. Table One is for surface ship underwater hull areas. Table 2 is for surface ship exterior areas. Table 3 is for surface ship interior spaces. Table 4 is for surface ship tanks and voids. Table 5 is for surface ship miscellaneous areas. Table 6 is for submarine exterior hull areas. Table 7 is for submarine interior areas. Table 8 is for submarine tanks and voids. 4.12 The repair activity must not coat reactor plant items cited in the ship’s reactor plant paint schedule in accordance with this Standard Item. 28 of 160 ITEM NO: 009-32 FY-24 ATTACHMENT A Edge DFT Measurement In addition to the required DFTs per SSPC-PA 2, a separate set of “edge” DFT readings must be taken in close proximity to corners and edges of area structural elements including, but not limited to stiffeners, “rat holes,” cut-outs, and frames. This data must be taken in accordance with SSPC-PA 2 and reported separately from those required by 3.10.9.1, with the following modifications: 1. The “edge” gauge readings must be taken approximately ¼ inch (i.e., 0.5 cm) from edges using micro-probe gauges with a probe less than or equal to ½-inch in diameter. For “edge” readings taken on substrates less than ½ inch thick, readings must be taken from the “middle” of the substrate. Microprobe gauges must be calibrated, in accordance with manufacturer’s direction, to measure paint thicknesses expected during application. 2. Welds not associated with corners or edges (i.e., a butt weld joining 2 flat plates) must be inspected using standard visual techniques. The inherent roughness of the weld precludes the collection of reproducible data from these areas. Inspectors may, if they choose, take a spot reading within ¼ inch (i.e., 0.5 cm) from a butt weld. 3. An "edge" spot measurement must consist of 3 gauge readings taken within a 1.5 inch (i.e., 4 cm) diameter circle. Accomplish front, back, and edge DFT gauge readings as shown in Figure A-1 (see attached). For each data set required for the flat surface data set the equivalent is required for the edge or corner data set. For example, if 20 spot DFT measurements are required for an area, then 20 DFT measurements are required using the front, back, edge method set and 20 for the flat surface set. Figure A-1 29 of 159 ITEM NO: 009-32 FY-24 ATTACHMENT B NAVSEA Flash Rust Adjudication Procedure: When waterjetting has been performed to a specified WJ level of cleanliness on a steel surface, and the level of flash rust (low, moderate, or high) cannot be agreed upon between the authorized coating inspector and the Contractor through the use of the written NACE/SSPC WJ standard or the SSPC-VIS 4 visual reference standard, the following procedure must be used to resolve the dispute. Note that this procedure is not a substitute for the definitions contained in the NACE/SSPC standard, but rather is intended to provide objective quality evidence (OQE) that a disputed zone, surface, or area has a low, moderate or high level of flash rust. 1. Ensure Surface Condition. The zone, surface, or area must have been cleaned to the required waterjetting level of cleanliness in accordance with 2.5 and 2.9 and possess a level of flash rust that cannot be readily gauged or appraised with certitude using the guidelines of 2.5, 2.9, and SSPC-VIS 4 alone. 2. Determine Minimum Number of Samples. One flash rust reading (consisting of one test measurement and one control measurement) must be taken for every 200 square feet for the first 1,000 square feet of a zone, surface, or area. For each additional 500 square feet or increment thereof, one additional flash rust reading must be taken. CAUTION Excessive pressure applied to the tape can crack the slide and create a dangerous, sharp surface. 3. Prepare Test Sample and Control Sample. Both the test and control samples are prepared by applying a 4-5 inch long piece of ISO 8502-3 dust tape to a 1.2 mm thick clean, clear microscope slide which is 50mm by 75mm or larger. The tapes for the test and control samples must be prepared as described in the sub-paragraphs below. Fully adhere the adhesive side of the tape to the slide, centering the tape’s length over the 75mm dimension of the glass. To help secure the tape to the slide, not more than 1/4 inch of the tape end may be wrapped under the slide. Additional tape may interfere with the measuring devices. Any sample with air bubbles larger than 1/4 inch in diameter must be rejected. Using a permanent marker to write on a non- test portion of the slide, date and uniquely identify each sample. 3.1 Test Sample Tape Preparation. For each test sample, the dust tape is applied to a representative area of the flash rusted surface before being applied to the microscope slide. The inspector must rub the tape onto the flash rusted surface with his/her thumb or other finger, pressing as hard as possible over the central 3 inches of the tape without damaging it. Remove the tape from the steel in a manner that retains as much of the adherent rust as possible; do not shake the tape or try to dislodge the rust. 30 of 159 ITEM NO: 009-32 FY-24 ATTACHMENT B (Con’t) 3.2 Control Sample Tape Preparation. While avoiding transferring fingerprints to the central 3 inches of tape, apply a control piece of tape from the same roll as that used for the test sample to a separate clean, clear microscope slide. 4. Measure Transmittance. For each test and control tape/microscope-slide assembly, measure the transmittance using a Laser Labs Model LM100, Monroe PMP Model PD2.1, Monroe PMP Model PD3.0, or NAVSEA-approved equivalent transmittance measurement meter. Transmittance measurements must not be made in direct sunlight or in an area where the ambient light level exceeds 100 foot candles. Insert the slide into the instrument with the tape facing the meter's light source. Record two measurements from different locations on the test sample. Record 2 measurements from the control tape, taking one measurement from each end. Subtract the average of the 2 test readings from the average of the two control readings. The difference in average transmittance of the test sample (i.e., sample with flash rust) and the average transmittance of the control sample must constitute one transmittance reading. 5. Adjudicate Flash Rust Level. A difference in transmittance reading (i.e., control minus test sample) must be applied to the entire zone, surface, or area which the measurement is intended to represent. The percentage difference between the average control and test sample values, as compared to the control sample, must be used to establish the following flash rust levels: WJ "High" level of flash rust: greater than 20 percent difference in transmittance readings. WJ “Moderate” level of flash rust: 10 percent to 20 percent difference in transmittance readings. WJ “Low” level of flash rust: less than 10 percent difference in transmittance readings. If the adjudicated flash rust level is determined to be greater than the requirements for the area allow, then the area must be re-cleaned until the specification is met. 6. Retain Samples. All test transmittance samples and control transmittance samples must be retained as objective quality evidence that the required level of surface cleanliness was obtained. 31 of 160 ITEM NO: 009-32 FY-24 ATTACHMENT C Process for Spot and Sweep Blast of the Underwater Hull and Freeboard 1. The “Spot and Sweep” method must only be used if authorized by the SUPERVISOR prior to the start of work in these areas. The use of this Spot and Sweep process must only apply to the underwater hull and freeboard areas of the ship and may only be considered for use on surface ships. 2. The spot and sweep blast process must be performed by a robotic crawler unit that uses UHP WJ. For areas not accessible by the robotic crawlers, UHP lances and/or abrasive blasting may be used to create either a NACE/SSPC-SP WJ-4/M surface or an SSPC-SP 7 surface, respectively. SSPC-SP 3 power tool cleaning may be used for feathering in the spot and sweep- prepared surfaces. 3. Examine the existing coating on the ship’s hull and determine the color sequence of the current epoxy coating system prior to blasting. The anticipated sequence is red epoxy primer followed by gray epoxy tie coat. The examiner must note these colors for use during inspection of the hull prior to application of the first coat of epoxy primer. 4. The UHP robotic crawler unit must be set up to accomplish the following: (a) Remove all loose and degraded coating, rust and fouling from areas of bare metal to create a NACE/SSPC-SP WJ-2/M surface. (b) For the underwater hull: Remove all antifouling coating and remove approximately 1/2 of the thickness of the current MIL-PRF-24647 epoxy tie coat from the underwater hull area. (c) For the freeboard portion of the hull: Remove all of the MIL-PRF-24635 coating, regardless of thickness, and remove approximately 1/2 of the thickness of the top MIL-PRF- 24647 or MIL-PRF-23236 epoxy coat from the freeboard area. (d) Smoothly feather or transition from areas of bare metal to the retained epoxy coating. Areas of sharp or "step" transition between bare metal and paint must be noted on the applicable QA appendix form in the comments section. Also, feather edges as needed where the UHP robotic crawler leaves behind markings in the existing paint (concentric circles). 5. The use of the Spot and Sweep method does not waive any surface preparation QA steps. Conduct all QA inspections on bare metal areas and record QA data. Areas of retained paint must be visually inspected and must satisfy the following: (a) There must be no more than two colors of paint visible in any area of retained coating. Inspectors must observe the red primer adjacent to any bare metal areas and then continue observations into the bulk of the retained epoxy. Gray epoxy may be retained on top of the red primer, but any visual evidence of additional coats of red or black paint (indicating antifouling coating retention) or haze gray MIL-PRF-24635 (indicating silicon alkyd/polysiloxane coating retention) on top of the gray epoxy must be cause for closer inspection. Closer inspection must be conducted from a minimum distance of 3 feet. Upon closer inspection, a solvent-wipe test with a white rag must be conducted using an antifouling coating clean-up solvent. If the solvent wipe test shows color transfer onto the rag, the area must be rejected. Rejected areas must be cleaned again until no color transfers to the rag. 32 of 160 ITEM NO: 009-32 FY-24 (b) Minimize areas of sharp transition or steps between bare metal and paint. Any such areas must be inspected and tested with a dull putty knife to determine adhesion. If the paint flakes or can be dislodged, the area must be rejected and cleaned again to remove the loose paint. (c) Feather the transition areas where partial blasted areas occur next to bare steel blasted areas. Sharp edges must be removed in accordance with SSPC-SP 3 and the areas feathered for a smooth transition. 6. The first step of the coating application process must be as follows: Apply one coat of epoxy primer in accordance with Tables One and 2 to all areas in the zone or work area (i.e., both bare metal and retained epoxy primer) to achieve the specified epoxy coating thickness. Do not apply a thin or varied primer thickness when traversing areas between bare metal and retained epoxy. 7. Coating inspections must be performed for each coat of paint in accordance with 3.10.9. In bare metal areas, DFT readings must be measured and recorded. In areas of retained paint, however, WFT readings must be measured and recorded in place of DFT readings for determining proper coating thickness for each coat. (Follow the requirement for taking WFT readings in place of DFT readings for accept/reject criteria). In areas of retained paint, DFT readings must still be measured and recorded. However, high DFT readings must not be cause for rejection; such readings must only be measured for documentation purposes. 8. Once the primer has reached the cure to overcoat state, the surface area must be inspected for edge lifting of the remaining epoxy that was overcoated. This inspection must be conducted at a maximum distance of 15 feet. As it cures, the epoxy primer may lift any loose edges of the existing coating that may not have been visible during the initial surface preparation inspection. Any areas where the paint has lifted must be prepared in accordance with SSPC-SP 3 and primed. This inspection may be included as part of the DFT/WFT and visual holiday inspection. 9. For underwater hull areas: (a) Apply second / tie coat of epoxy and first coat of antifouling in accordance with Table One. (b) Apply remaining antifouling system in accordance with Table One. 10. For freeboard areas, apply second coat of epoxy then the topcoat in accordance with applicable Line in Table 2. 33 of 160 ITEM NO: 009-32 FY-24 ATTACHMENT D ICCP Sprayable Dielectric Shields Application Instructions For Removed/New Anode Installation 1. Prior to surface preparation, remove existing anode. If new installation, install gland body and anode mounting studs. 2. Install plug or masking material for the protection of areas not to be painted to include sea chests and other areas as directed by the SUPERVISOR. 3. Prepare surface in accordance with requirements listed in the Table and Line for “Dielectric Shields” and QA checkpoints are conducted in accordance with 3.7. a. For 8 foot anode, prepare area 15 feet by 22 feet in accordance with Figure D-1. b. For 4 foot anode, prepare area 15 feet by 18 feet in accordance with Figure D-1. c. For 2 foot anode, prepare area 15 feet by 16 feet in accordance with Figure D-1. NOTE: All coatings must be listed in the Table and Line for “Dielectric Shields” and be applied in accordance with their NAVSEA-reviewed ASTM F718. All QA checkpoints must be conducted in accordance with 3.7. 4. Apply primer to at 10 – 12 mils DFT. Exclusive of specified DFT range, the primer must be mixed and applied in accordance with the manufacturer’s NAVSEA-reviewed ASTM F718. NOTE: Intermediate and topcoat cannot be applied at required thickness in single pass without significant runs and sags. To prevent application defects, apply coatings in two passes as instructed below. 5. Within the primer’s specified overcoat window, apply the first pass of the intermediate coat at a thickness between 13 and 18 mils. The intermediate coat must be applied to the anode area within 5 to 7 inches of the primer boundary, leaving a 5 to 7 inch band of primer along the perimeter. a. For 8 foot anode, coat area 14 feet by 21 feet in accordance with Figure D- 1. b. For 4 foot a