NAVSEA Update - NSRP

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Single Coat Paint in Well DecksIDEA:RISK:Allow well deck bulkheads and areas under batter/beach boards to be coated with MIL-PRF-23236D, Type VII,Class 5/18 or 7/18.Performance risk is minimal, rapid-cure, single-coat paint is already used in tanks. At new construction, a tankand a well deck are similar. Extra thickness of single-coat paint helps resist batter/beach board wear.REFERENCE: FY-13 Standard Item 009-32, Table 2, Line 17.Technical Requirements to Allow Single Coat in Well DecksMaterial:MIL-PRF-23236D, Type VII, Class 5/18 or 7/18. Product may be tinted to satisfy deck color requirements.OQE: As per established contract. Manufacturer shall verify tinted coating satisfies MIL-PRF-23236D, TableII & III hazardous materials (e.g., Pb, Cr, Cd, etc.) limits.Tinted products ARE NOT AUTHORIZED for use in potable water or other tank coatings. SUPSHIPshall concur with color.Surface preparation:SSPC SP-10 with sharp, angular media. Surface profile 2-4 mils with no single reading in excessof 5-mils or below 1-mil.OQE: As per established contract.Application:Product shall be applied in a single coat provided edge thickness readings are measured as perAttachment A or applied with a stripe coat. Final dry film thickness (DFT) is to be 20-30 mils with anallowance for up to 50-mils DFT in runs, drips and sags. Relative humidity shall not exceed 85%.OQE: Government checkpoint for final film thickness. Well deck areas shall be considered tanks forpurpose of SSPC PA-2 or other DFT assessment protocol as per the existing contract. Runs,drips, and sags
Retention of Preconstruction Primer Under Single Coat PaintIDEA:Allow retention of preconstruction primer (PCP) in in fuel oil storage, fuel oil service, compensated fuel anddiesel tanks, as well as ballast tanks, voids, plenums, bilges, and CHT tanks and under MIL-PRF-23236, TypeVII, Class 5/18, 7/18, and 13/18 systems.RISK:Low/moderate, with <strong>NAVSEA</strong> leaving forward with risk of coating failure due to blistering or delaminationbefore 12-years. Risk is mitigated by commercial practice and MSC.REFERENCE:<strong>NSRP</strong> project conducted at HII Gulf Coast.Technical Requirements to Allow PCP RetentionMaterial:PCP shall be a silicate-zinc “weld through” primer that is approved by final coating system vendor.OQE: Letter from vendor, or notation on ASTM-F-718 data sheet.Surface preparation:SSPC SP-10 with sharp, angular media. Surface profile 2-4 mils with no single reading in excessof 5-mils or below 1-mil.OQE: Contractor with ISO 9001 process verification once per shift. SUPSHIP may conductrandom inspection.Application:Installation:PCP shall be applied and cured in accordance with manufacturer requirements, including thickness.Relative humidity shall not exceed 85%.OQE: ISO 9001 process verification once per shift. SUPSHIP may conduct random inspection.All retained PCP shall be subject to secondary surface preparation within 48-hours of epoxy primerapplication by brush-off blasting to SSPC-SP 14. Sound PCP may be retained on up to 10% of thesurface area as defined in SSPC SP-14. Any previously rusted areas where the original surface profilehas deteriorated shall be abrasive blasted to SSPC SP-10 to re-establish the required surface profile.OQE: Government check point for final surface cleanliness to include visual inspection as per SSPCSP-1 and/or SSPC SP-7. Government may use ASTM-F-21/22 water break test to validate SSPC SP-1.First Coat Paint:A minimum of one coat of rapid-cure, single-coat paint required on all surfaces. PCP thickness tonot change established DFT requirements.OQE: As per established contract.13
Page 1 and 2: NAVAL SEA SYSTEMS COMMANDWhat’s N
Page 3 and 4: Naval Systems Engineering Directora
Page 5 and 6: Universal Paints Requirement Docume
Page 7 and 8: Spray Applied Dielectric ShieldIDEA
Page 9 and 10: Reduce Need to Retain Paint Test Ce
Page 11: Apply Powder Coating at Reduced Thi
Page 15 and 16: ANTIFOULING COATINGSMIL-PRF-24647E
Page 17 and 18: QA/QC “Minimum” Guidance• Com
Page 19: Backup slides19

NAVSEA Update - NSRP

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