J-6 NAVSEA SI 009-032.pdf

1 of 163 ITEM NO: 009-32

FY-27

NAVSEA

STANDARD ITEM

ITEM NO: 009-32

DATE: 12 MAR 2024

CATEGORY: II

1. SCOPE:

1.1 Title: Cleaning and Painting Requirements; accomplish

2. REFERENCES:

2.1 NAVSEA Standard Items

2.2 S9086-VD-STM-010/CH-631, Preservation of Ships in Service - General

2.3 29 CFR 1915, Occupational Safety and Health Standards for Shipyard Employment, Subparts C and Z

2.4 S9510-AB-ATM-010/(U), Nuclear Powered Submarine Atmosphere Control Manual

2.5 SSPC Standards

2.6 MS6310-081-015, Submarine Preservation

2.7 S6360-AG-MAN-010, Surface Ship Exterior Appearance Manual

2.8 ASTM D4417, Standard Test Methods for Field Measurement of Surface Profile of

Blast Cleaned Steel

2.9 NACE International Standards

2.10 ISO 8502-3, Assessment of Dust on Steel Surfaces Prepared for Painting (Pressure

Sensitive Tape Method)

2.11 S9086-CN-STM-020/CH-079, Damage Control - Practical Damage Control

2.12 S9086-RK-STM-010/CH-505, Piping Systems

2.13 S9086-RK-STM-010/CH-634, Deck Coverings

3. REQUIREMENTS:

3.1 General Preservation Requirements:

3.1.1 Consider marine coatings, decking systems, and abrasive blasting media to contain heavy metals (e.g., beryllium, cadmium, chromium, or lead), hexavalent chromium, crystalline silica and/or other toxic or hazardous substances.

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3.1.2 Accomplish safety precautions as specified in 2.2, 2.3, and the Work Item or task order during surface preparation and the application or removal of marine coatings.

3.1.2.1 Excluding underwater hull coatings that will contain heavy metals, plan for the removal of marine coatings that contains heavy metals up to the specified amount:

Marine Coating Removal Per Ship Class

Ship Class Square Foot of Removal

Aircraft Carriers (CVN) 200 Amphibious Assault Ships (LHD, LHA) 150 Amphibious Command Ships (LCC) 150 Guided Missile Cruisers (CG) 150 Amphibious Transport Docks (LPD) 100 Amphibious Dock Landing Ships (LSD) 100 Guided Missile Destroyers (DDG) 100 Submarines (SSGN, SSBN, SSN) 50 Littoral Combat Ships (LCS) 50 Mine Counter Measures Ships (MCM) 50 Coastal Patrol Ships (PC) 50 Repair and Berthing Barge (YRB, YRBM) 50

3.1.2.2 If the total costs are less than the cost to remove the authorized square footage, remaining funds will be subject to recoupment. The contractor is not authorized to exceed these limits.

3.1.2.3 For deck coverings installed onboard submarines, NAVSEA-approved deck covering systems must comply with the requirements of 2.4.

3.1.3 Blast Media:

3.1.3.1 Maintain a current copy of material certification of abrasive blast media conforming to MIL-A-22262, A-A-1722, A-A-59316, SSPC-AB 3, or SSPC-AB 4 for reference by the SUPERVISOR. Copy must be available prior to blasting. When using stainless steel media, maintain a current copy of the manufacturer’s commercial data sheet to validate media contains a minimum of 10.5 percent chromium. Copy must be available prior to blasting.

MIL-A-22262 abrasives must be listed on the Qualified Products List (QPL), or the repair activity must have written notification from NAVSEA indicating pending listing on the QPL.

Submit one legible copy, in hard copy or approved transferrable media, to the SUPERVISOR upon request. For A-A-1722, A-A-59316, SSPC-AB 3, or SSPC-AB 4 abrasives, a complete data package demonstrating compliance with the requirements must be provided by the supplier to the procuring activity. Exceptions are listed in 3.1.3.2 and 3.1.3.3.

3.1.3.2 Recyclable Encapsulated Abrasive Media material conforming to SSPC-AB 4 may be used as an alternative to obtain NACE 2/SSPC-SP 10 or SSPC-SP 11 cleanliness.

3.1.3.3 Recyclable ferrous metallic abrasive materials conforming to SSPC-AB 3 of 2.5 may be used as an abrasive blast media for steel substrates. Cleanliness of recyclable ferrous metallic abrasive materials must be measured and maintained in accordance with the requirements of SSPC-AB 2 of 2.5.

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3.1.3.4 For requirements specified in 3.1.3.3, maintain a current copy of the results of the quality control requirements of Paragraph 6 of SSPC-AB 2 and quality assurance test required by Paragraph 5 of SSPC-AB 3 of 2.5 for reference by the SUPERVISOR.

Submit one legible copy, in hard copy or approved transferrable media, to the SUPERVISOR upon request.

3.1.3.5 Steel media, defined as steel shot, steel grit; stainless steel media, defined as stainless steel shot, stainless steel grit; and SSPC-AB 4 media containing steel abrasive MUST NOT be used for surface preparation on LHA, LHD, LPD, LSD and ESB Class ship flight deck, hangar, vertical replenishment deck, elevators, catwalk, and superstructure above the flight deck. Steel media may be used on tanks and voids below the flight, hangar, and vehicle storage decks and associated ramps with containment that prevents release of the steel media onto the flight deck, hangar, vertical replenishment deck, elevators, catwalk, and superstructure above the flight deck. SSPC-AB 4 media that does not contain steel abrasive or MIL-A-22262 abrasive may be used on flight decks and other areas of LHA, LHD, LPD, and LSD Class ships. The following checkpoints apply ONLY when steel media is being used on an LHA, LHD, LPD, or LSD Class ship on tanks and voids below the flight, hangar, and vehicle storage decks and associated ramps.

(V)(G)”STEEL MEDIA BLASTING PROCESS AND MEDIA CONTAINMENT

INSPECTION”

3.1.3.6 Steel media may be used on tanks and voids below the flight, hangar, and vehicle storage decks and associated ramps with containment that prevents release of the steel media onto the flight deck, hangar, vertical replenishment deck, elevators, catwalk, and superstructure above the flight deck.

3.1.3.7 Accomplish a start of blasting media containment inspection to ensure blast media is contained within the confines of the work area. Any media detected outside of the containment must be reported to the SUPERVISOR.

(V)(G)”FINAL BLASTING MEDIA VISUAL INSPECTION”

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

4 of 163 ITEM NO: 009-32 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 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. CRES and non-ferrous fasteners installed post preservation are not required to be painted.

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.

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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 freshwater 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- 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 freshwater 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.

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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 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 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.

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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-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

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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).

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.

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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.

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-

10 of 163 ITEM NO: 009-32 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.

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.

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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.

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.

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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 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, freshwater 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.

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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.

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 Freeboards (excluding Aircraft Carriers) 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

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SURFACES TYPE OF SUBSTRATE

Interior surfaces of submarine sail (fairwater) and superstructure when SSPC-SP 10 is accomplished Steel 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 Aircraft carrier areas above the flight deck receiving PCMS 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);

http://www.nstcenter.biz/

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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);

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 nonskid systems, underwater hull coatings for aircraft carriers, and antifouling topcoats for submarines) 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, or AMPP Basic Coatings Inspector, or as approved by NAVSEA.

Coating inspectors must 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.

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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.

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

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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 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…