MEDIUM DURABILITY MEDIUM DURABILITY

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Gervase Moore
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1 PPI NBR: M-B (REV 01) DATE: September 07, 2004 MEDIUM DURABILITY PRESERVATION PROCESS INSTRUCTION (PPI) for VENT PLENUMS, DUCTS AND TRUNKS to be used in conjunction with CORE PPI with a Cleanliness Level of SSPC-SP-10 Surface Preparation MEDIUM DURABILITY USE OF THIS PPI REQUIRES A DEVIATION FROM SPECIFICATION Vent Plenums, Ducts & Trunks PPI 1

2 1. SCOPE: 1.1 Cleaning, Surface Preparation and Paintings Requirements for Vent Plenums, Ducts and Trunks. 1.2 RISK STATEMENT: Risk for installation. If proper surface preparation and application procedures are not adhered to, coating system failure can occur within 3-6 months Risk for curing. If overcoat window timeframes are not adhered to, coating system failure is possible within the first 6-9 months of application If the PPI checkpoint criteria are met, the following table provides service life expectancy for the listed systems: Coating System Life Expectancy: Surface Preparation Method System Life Expectancy Years MIL-DTL-24441, Type IV or Cleanliness Level of SSPC- MIL-PRF-23236, Types IV, SP-10 V, or VI 4-6 years 2. REFERENCES: (REFER TO CORE PPI EXCEPT FOR THE FOLLOWING) 2.c. MSDS and NAVSEA approved manufacturer s ASTM F 718 sheets, Shipbuilders and Marine Paints and Coating Product / Procedure Data Sheet for coating systems being applied for specified area. Vent Plenums, Ducts & Trunks MIL-DTL-24441, Type IV or MIL-PRF-23236, Types IV, V, or VI 3. APPENDICES: (REFER TO CORE PPI EXCEPT FOR APPENDICES 5 & 8) 4. REQUIREMENTS: 5. PRE-SURFACE PREPARATION: (REFER TO CORE PPI EXCEPT FOR THE FOLLOWING) Disconnect and remove ducting at first break in ducting, and blank flange ducting ends. Vent ducting checkpoints for surface preparation and paint coatings are to be completed in conjunction with the checkpoints for the space. 6. SURFACE PREPARATION: (REFER TO CORE PPI EXCEPT FOR THE FOLLOWING) NOTE: CONTRACTING REGIONAL MAINTENANCE CENTER SHALL DESIGNATE ONE OF THE FOLLOWING METHODS TO ACHIEVE A CLEANLINESS LEVEL OF SSPC-SP-10 SURFACE PREPARATION: 1) Dry abrasive blasting 2) Dry abrasive blasting with abrasive sponge media 3) Wet abrasive blasting followed by dry abrasive blasting to remove flash rust 4) Wet abrasive blasting followed by dry abrasive blasting with abrasive sponge media to remove flash rust 5) UHP water jetting followed by dry abrasive blasting to remove flash rust and ensure a 2-4 mil surface profile 6) UHP water jetting followed by dry abrasive blasting with abrasive sponge media to remove flash rust and ensure a 2-4 mil surface profile 7. PAINTING REQUIREMENTS: (REFER TO CORE PPI EXCEPT FOR THE FOLLOWING) NOTES: CONTRACTING REGIONAL MAINTENANCE CENTER SHALL DESIGNATE COATING SYSTEM TO BE APPLIED. WET AND DRY FILM MEASUREMENTS SHALL BE TAKEN DURING THE APPLICATION PROCESS OF THE MIL-DTL AND MIL-PRF COATING SYSTEMS. 7.1 WET FILM MEASUREMENTS: During application of the MIL-DTL or MIL-PRF coating systems, applicators shall monitor wet film thickness using wet film gauges. Random wet film thickness Vent Plenums, Ducts & Trunks PPI 2

3 (WFT) measurements shall be taken during the application process to ensure the specified dry film thickness (DFT) is achieved. Record WFT measurements in Appendix PRIME COAT APPLICATION: 9. STRIPE COAT APPLICATION: 10. Not Applicable to this PPI. 11. Not Applicable to this PPI. 12. TOPCOAT APPLICATION: 13. FINAL INSPECTION: (REFER TO CORE PPI EXCEPT FOR THE FOLLOWING) 13.2 On completion of final checkpoint of all refurbished components, direct reinstallation of all components CHECKPOINT (Closure): Inspect gaskets, nuts, bolts, screws, filters, and screens for proper installation. APPENDIX 1: QA INSPECTION FORM ENVIRONMENTAL READING APPENDIX 2: QA INSPECTION FORM SURFACE SOLUBLE SALT CONDUCTIVITY LOG APPENDIX 3: QA INSPECTION FORM SURFACE PROFILE LOG APPENDIX 4: QA INSPECTION FORM DRY FILM THICKNESS MEASUREMENTS APPENDIX 5: CHECKPOINTS & MILESTONES COMPLETION & SIGN OFF LOG APPENDIX 6: PAINT APPLICATION EQUIPMENT & PAINT CONSUMPTION LOG APPENDIX 7: QA INSPECTION FORM WET FILM THICKNESS MEASUREMENTS APPENDIX 8: COATING SYSTEM (S) APPENDIX 9: QA INSPECTION FORM TEST FOR ASSESSMENT OF SURFACE CLEANLINESS ENCLOSURE 1: SURFACE CONDUCTIVITY TESTING PROCEDURE (REFER TO THIS PPI) (REFER TO THIS PPI) Vent Plenums, Ducts & Trunks PPI 3

4 APPENDIX 5 CHECKPOINTS & MILESTONES COMPLETION & SIGN OFF LOG SHIP: JOB ORDER: DATE: LOCATION: WORK ITEM: PARA. NO.: PRODUCT BEING APPLIED: MAINTAIN SEPARATE LOG FOR EACH AREA/LOCATION, PREPARED OR PAINTED SURFACE. WHEN AN AREA IS DIVIDED INTO SEPARATE SECTIONS MAINTAIN A SEPARATE LOG FOR EACH SECTION. ACTIVITY TIME DATE Date Pre-Surface Preparation and Cleaning Begins Date of Pre-Surface Preparation and Cleaning Checkpoint --Date of Visual and UV Light or Water-Break Inspection Check --Date of Structural and Pre-Surface Conditioning (ensuring de-burring and grinding) Check --Date of Contamination Containment and Masking Check Date Surface Preparation Begins Date of Surface Preparation Checkpoint --Date of Surface Profile Measurement Check --Date of Soluble Salt Measurement Check --Date of Environmental Check --Date of Contamination Containment and Masking Check --Date of Inspection of Prepared area (ensuring all areas are properly prepared) Check --Date of Inspection of area cleanliness prior to primer coat application Check Date Paint Storage Area Inspected Date Paint Mixing Inspected --Date of Shelf Life Check --Date of Temperature Check --Date of Mixing Check Date Prime Coat is Applied Date of Prime Coat Checkpoint Vent Plenums, Ducts & Trunks PPI 4

5 APPENDIX 5 (CONTINUED) CHECKPOINTS & MILESTONES COMPLETION LOG SHIP: JOB ORDER: DATE: LOCATION: WORK ITEM: PARA. NO.: PRODUCT BEING APPLIED: MAINTAIN SEPARATE LOG FOR EACH AREA/LOCATION, PREPARED OR PAINTED SURFACE. WHEN AN AREA IS DIVIDED INTO SEPARATE SECTIONS MAINTAIN A SEPARATE LOG FOR EACH SECTION. ACTIVITY TIME DATE Date of Surface Cleanliness Inspection Checkpoint Date of Amine Bloom Inspection Checkpoint Date Stripe Coat Applied Date of Stripe Coat Checkpoint Date of Surface Cleanliness Inspection Checkpoint Date of Amine Bloom Inspection Checkpoint Date Topcoat Coat Applied Date of Topcoat Checkpoint Date of Closures (Ducting and Accessories) Inspected Date Finished Painted Surfaces Checkpoint Vent Plenums, Ducts & Trunks PPI 5

6 APPENDIX 8 COATING SYSTEMS Coating Prime Stripe Topcoat System DFT MIL-DTL-24441, Type IV or MIL-PRF , Types IV, V, or VI 4 6 mils DFT 4 6 mils DFT 4 6 mils DFT 8 12 mils DFT mils DFT for Stripe Coat Areas NAVSEA APPROVED ASTM-F-718 SHEETS MAY BE OBTAINED BY SELECTING THE NAVY COMMUNITY TAB ON THE WEBSITE AND FOLLOWING THE DIRECTIONS TO THEIR LOCATION. Vent Plenums, Ducts & Trunks PPI 6

PPI NBR: H-B (REV 01) DATE: November 30, 2010

PPI NBR: H-B (REV 01) DATE: November 30, 2010 PPI NBR: 63101-015H-B (REV 01) DATE: November 30, 2010 PRESERVATION PROCESS INSTRUCTION (PPI) for UNDERWATER HULL to be used in conjunction with CORE PPI 63101-000 with a Cleanliness Level of SSPC-SP-12