J18--S9086-VD-STM-030_Naval_Ships_Technical_Manual_(NSTM)_Chapter_631 _Preservation_of_Ships_in_Service.pdf

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S9086-VD-STM-010

0901-LP-102-4136 REVISION 3

NAVAL SHIPS’ TECHNICAL MANUAL

CHAPTER 631

PRESERVATION OF SHIPS IN

SERVICE - GENERAL

DISTRIBUTION STATEMENT C: DISTRIBUTION AUTHORIZED TO U.S. GOVERNMENT

AGENCIES AND THEIR CONTRACTORS; ADMINISTRATIVE AND OPERATIONAL USE

(11 NOV 1992). OTHER REQUESTS FOR THIS DOCUMENT WILL BE REFERRED TO

THE NAVAL SEA SYSTEMS COMMAND 05P23.

WARNING: THIS DOCUMENT CONTAINS TECHNICAL DATA WHOSE EXPORT IS

RESTRICTED BY THE ARMS EXPORT CONTROL ACT (TITLE 22, U.S.C., SEC. 2751, ET

SEQ.) OR EXECUTIVE ORDER 12470. VIOLATIONS OF THESE EXPORT LAWS ARE

SUBJECT TO SEVERE CRIMINAL PENALTIES. DISSEMINATE IN ACCORDANCE WITH

PROVISIONS OF OPNAVINST 5510.161, REFERENCE (JJ).

DESTRUCTION NOTICE: DESTROY BY ANY METHOD THAT WILL PREVENT DISCLO-

SURE OF CONTENTS OR RECONSTRUCTION OF THE DOCUMENT.

THIS CHAPTER SUPERSEDES CHAPTER 631 VOLUME 1 Rev 2, VOLUME 2 Rev 1, VOLUME 3 Rev 2.

PUBLISHED BY DIRECTION OF COMMANDER, NAVAL SEA SYSTEMS COMMAND.

1 NOV 2008

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S9086-VD-STM-010

REVISION RECORD

REVISION NO. DATE TITLE AND/OR BRIEF DESCRIPTION/PREPARING ACTIVITY

3 1 NOV 2008 SEE DESCRIPTION BELOW.

• ALL CHANGES PREPARED BY NSWCCD-SSES CODE 614.

• GENERAL: REPLACED ALL REFERENCES TO SPAR VARNISH PER TT-V-119 WITH MASTER PAINTERS

INSTITUTE (MPI) REFERENCE COATING #28.

• GENERAL: STANDARDIZED ON USE OF TWO COATS OF TT-P-645 FORMULA 84 WHEREVER SPECIFIED, VS. A MIX OF REQUIREMENTS FOR SYSTEMS USING 1 OR 2 COATS.

• GENERAL: DELETE REFERENCES TO FORMULA 25A PAINTS AS UNIQUE, SPECIFIC PAINTS, SINCE THEY

ARE NOW COVERED UNDER MIL-PRF-24596.

• GENERAL: DELETED TEXT, TABLE LINES PERTAINING TO DECOMMISSIONED SUBMARINES.

• GENERAL: LAYOUT CHANGES TO IMPROVE PLACEMENT AND ORGANIZATION OF TABLES, TABLE

NOTES, AND FIGURES. TYPOGRAPHICAL ERROR CORRECTIONS. UPDATE OF MILITARY SPECIFICATION

DESIGNATIONS (E.G. MIL-P-24441 CHANGED TO MIL-DTL-24441).

• GENERAL: LANGUAGE REVISION TO CLARIFY REQUIREMENTS VS. GUIDANCE. (REF. TMDER A00000

04-0225) ADDITIONAL CHANGES WILL BE MADE IN NEXT REVISION.

• GENERAL: UPDATED COMPANY SOURCE OF SUPPLY INFORMATION, NSNS FOR A VARIETY OF PROD

UCTS.

• GENERAL: UPDATED SPECIFICATIONS P-D-680 DRY CLEANING SOLVENT AND TT-P-291 PAINT THINNER

TO MIL-PRF-680 DEGREASING SOLVENT AND ASTM D235 TYPE I MINERAL SPIRITS.

• GENERAL: DELETED REFERENCE TO SNAME TECHNICAL AND RESEARCH BULLETIN NO. 4-21, ABRA SIVE BLASTING GUIDE FOR AGED OR COATED STEEL SURFACES AS A VISUAL STANDARD FOR PREVI OUSLY PAINTED STEEL, SINCE SSPC-VIS 1 HAS BEEN MODIFIED TO INCLUDE EQUIVALENT PHOTOS.

• GENERAL: PROHIBITED USE OF METHYLENE CHLORIDE PRODUCTS.

• GENERAL: DUE TO ISSUE OF REV. H OF TT-P-28 HEAT RESISTANT PAINT TO INCLUDE TWO TYPES (TYPE I CONVENTIONAL PAINT AND TYPE II POWDER COATING), FOR MOST REFERENCES TO THIS

SPECIFICATION, DISTINGUISHED BETWEEN TYPE I VS. TYPE II WHERE APPROPRIATE.

• PARAGRAPH 631-1.1.1: ADDED TEXT DESCRIBING MANDATORY REQUIREMENTS VS. GUIDANCE.

• PARAGRAPH 631-1.1.2: ADDED NEW PARAGRAPH GIVING AN OVERVIEW OF THE ORGANIZATION OF

THE SECTIONS IN THIS NSTM.

• PARAGRAPH 631-1.3 (OLD): DELETED THIS PARAGRAPH CITING OBSOLETE TRAINING FILM.

• PARAGRAPH 631-1.3 (NEW): COMPLETELY REVISED OLD PARA. 1.4 THAT CONTAINED “GUIDELINES” AND MADE THIS A REQUIREMENTS PARAGRAPH. INCLUDED DEFINITIONS OF VARIOUS SCOPES OF

WORK FOR PAINTING, TAKEN FROM STD. ITEM 009-32, AND WAIVED THE QA DOCUMENTATION

REQUIREMENTS FOR DEFINED “TOUCH-UP” AREAS ON SURFACE SHIPS AND AIRCRAFT CARRIERS.

SEPARATE TOUCH-UP DEFINITIONS APPLY TO SUBMARINES, WITH SEPARATE QA DOCUMENTATION REQUIREMENTS. ADDED NEW PARAGRAPHS DEFINING COSMETIC PAINTING, AND ASSOCIATED DECI SION FACTORS. ADDED REQUIREMENTS FOR COATING CONDITION ASSESSMENTS IN ORDER TO MAKE REPAIR/REPLACE DECISIONS. ADDED INSPECTION PERIODICITIES FOR CRITICAL COATED AREAS, AND FOR TANKS AND VOIDS, INVOKED USE OF CCIMS FOR RETENTION OF INSPECTION DATA AND COAT ING REPAIR/REPLACE PROTOCOLS. INVOKED USE OF 009-32 FOR PERFORMANCE OF CONTRACTED COATING WORK. INVOKED USE OF ASTM F718 DATA SHEETS. INVOKED USE OF CCIMS TECHNICAL PUBLICATION FOR COATING ASSESSMENTS. ADDED SUB-PARAGRAPH ON FED-STD-595 COLOR NUM

BERS.

• PARAGRAPH 631-1.5: ADDED PARAGRAPH DESCRIBING NAVSEA COGNIZANT TECHNICAL AUTHORITY (CTA) ROLE AND RESPONSIBILITY. DELETED ALL OTHER REFERENCES THROUGH ALL SECTIONS OF

THIS MANUAL TO NAVSSES (NSWCCD-SSES) AND NRL.

• PARAGRAPH 631-1.6: NEW PARAGRAPH ADDED DESCRIBING THE DOD ″CORROSION PREVENTION AND

CONTROL PROGRAM″ POLICY AND RESOURCES.

REVISION RECORD-1

REVISION RECORD - CONTINUED

REVISION NO. DATE TITLE AND/OR BRIEF DESCRIPTION/PREPARING ACTIVITY

• TABLE 631-1-1: UPDATED AND ADDED SSPC, ASTM AND NACE REFERENCES, AND SSPC AND NACE

ADDRESSES. ADDED OR DELETED SEVERAL OTHER REFERENCES AS REFLECTED THROUGHOUT THE

MANUAL.

• TABLES 631-1-2, 631-1-3, 631-1-4: CHANGES TO TABLE HEADERS AND VARIETY OF CHANGES TO

TABLES AND COATING SYSTEM NOTES TO REFLECT NEW COATINGS AND CHANGES IN COATING

POLICY, TO COMPLEMENT CHANGES MADE IN SECTION 8. TABLE 631-1-3 (PAINTING INTERIOR OF SHIPS) REVISED TO SEPARATE SHIP STRUCTURE FROM MACHINERY AND EQUIPMENT. NEW TABLE 631-1-4 ADDED TO PROVIDE A SINGLE COATING SCHEDULE FOR SHIPS, TO ACCOMPANY TABLES

631-1-2 AND 631-1-3.

• TABLES 631-1-5 AND 631-1-6: REVISED LAYOUT AND RENUMBERED TABLES 631-1-4 AND 631-1-5 FOR SUBMARINES. UPDATED COATINGS TO REFLECT 009-32 FY08. ADDED NEW LINES AND COATING SYS

TEMS FOR PAINTING OF SUBMARINE BOW DOMES; SEE ALSO PARAGRAPH 631-8.15.2.

• TABLE 631-1-6: DELETED LINES, COATING SYSTEMS PERTAINING TO DECOMMISSIONED SUBMARINE CLASSES. DELETED COATING SYSTEM NUMBERS 18-20 AND 22-26 AS THEY ARE NO LONGER REFER ENCED IN THE TABLE. CHANGED COATING SYSTEM NUMBER 21 TO 18. UPDATED COATING SYSTEM 6

FOR POTABLE WATER, RESERVE FEEDWATER, AND FRESH WATER DRAIN COLLECTING TANKS.

• ALL REFERENCES TO NAVSSES CHANGED TO NAVSEA PER ACCOMPANYING CHANGE REGARDING

TECHNICAL AUTHORITY IN 631-1.6.

• SECTION 2: IN ADDITION TO THE SPECIFIC CHANGES DESCRIBED BELOW, EXTENSIVE REVISIONS TO

INCORPORATE CHANGES RECOMMENDED BY THE NAVAL ENVIRONMENTAL HEALTH CENTER (NEHC)

18 JULY 2001, ENDORSED BY BUMED 31 JULY 2001. THESE CHANGES ALSO SUBSTANTIALLY REORGA NIZED THE ORDER OF MATERIAL IN SECTION 2, AND AS A RESULT, MANY OF THESE CHANGES ARE

NOT MARKED WITH CHANGE BARS, AND PARAGRAPH NUMBERING HAS CHANGED.

• TABLE 631-2-2 VENTURI EXHAUST BLOWERS: DELETED TABLE.

• SECTION 2: PROHIBITED USE OF METHYLENE CHLORIDE, CRESOL, AND PHENOL PRODUCTS. REVISED TO PROHIBIT ALL USE OF CHEMICAL PAINT STRIPPERS AND REMOVERS UNLESS SPECIFIC APPROVAL

IS GRANTED.

• SECTION 2: ADDED SAFETY PRECAUTIONS FOR USING WATER-BASED PAINTS.

• SECTION 2: REVISED HEALTH AND SAFETY REQUIREMENTS CONCERNING POLYURETHANE COAT

INGS.

• SECTION 2: REFERENCES TO ORGANTIN ANTI-FOULING PAINTS REMOVED THROUGHOUT THE DOCU MENT, AS THEY ARE NO LONGER PERMITTED IN THE U.S. BRIEF PARAGRAPH IN 631-2.8.3 STATING THE

TBT PROHIBITION REMAINS.

• SECTION 2: DELETED REQUIREMENT TO TEST INDIVIDUAL PAINT LAYERS FOR CHROMATES AND

LEAD UPON PAINT REMOVAL.

• PARAGRAPH 631-2.7.7: EDITED TO ADDRESS PLURAL COMPONENT SPRAYING SAFETY PRECAUTIONS

ALONG WITH AIRLESS SPRAYING.

• PARAGRAPH 631-3.2.9: MATERIAL ON METAL SPRAYED COATINGS MOVED TO 631-7.6 AND INTE

GRATED WITH EXISTING MATERIAL THERE.

• PARAGRAPH 631-3.3: COMPLETELY REVISED SECTION ON DFT AND WFT GAGES AND REQUIREMENTS.

DELETED FIGURES 631-3.2 THROUGH 631-3-4 AND TABLES 631-3-2 THROUGH 631-3-4. ADDED TEXT TO INVOKE SSPC-PA 2 FOR DFT MEASUREMENTS, AND SPECIAL SITUATIONS FOR NON-MAGNETIC AND

NON-METALLIC SUBSTRATES. ADDED NEW PARAGRAPH ON ESTIMATING DFT FROM WFT MEASURE

MENTS. (REFER TO SECTION 631-7.1.4 FOR NEW/REVISED DFT AND WFT QA REQUIREMENTS.)

• PARAGRAPH 631-3.4.2: UPDATED CONTENT, AND REPLACED PARAGRAPH 631-3.4.2.1 WITH A BRIEF DESCRIPTION OF THE SHIPS HAZARDOUS MATERIAL LIST (SHML). MOVED CONTENT OF OLD PARA GRAPH 631-8.5 (NAVSEA-APPROVED COATINGS FROM PROPRIETARY SOURCES) TO HERE, AS THIS IS A

MORE APPROPRIATE LOCATION.

REVISION RECORD-2

REVISION NO. DATE TITLE AND/OR BRIEF DESCRIPTION/PREPARING ACTIVITY

• PARAGRAPH 631-3.4.3: INSERTED NEW PARAGRAPH REGARDING RECEIPT INSPECTION OF COATINGS FOR NON-CRITICAL COATED AREAS. FOR CRITICAL COATED AREAS, REFERRED TO SECTION 11.

• PARAGRAPH 631-3.4.5: ADDED TEXT TO INDICATE PAINT STOREROOMS MUST PREVENT EXPOSURE TO FREEZING CONDITIONS AND EXPOSURE TO DIRECT SUNLIGHT. ADDED REQUIREMENT THAT EXPIRED

PAINT MUST BE SEGREGATED FROM UNEXPIRED PAINT IN STORAGE FACILITY.

• TABLE 631-3-2: DELETED OBSOLETE FORMULA NUMBERS 34, 109, AND 120. ADDED LINE FOR FOR MULA 20L. DELETED VINYL AF PAINTS FORMULAS 121A AND 129A. ADDED AND UPDATED NSNS FOR

SEVERAL PAINTS.

• TABLE 631-3-3: ADDED ALTERNATE ANTI-SWEAT COATING, AND INFORMATION ON HIGH

TEMPERATURE PAINT PER TT-P-28. DELETED OR EDITED OBSOLETE NSN’S AND SPECIFICATIONS.

ADDED COLORS AND NSN’S FOR MIL-PRF-24635 GLOSS, SEMI-GLOSS, AND LOW GLOSS PAINTS. ADDED MIL-PRF-24763 WATER-BASED ACRYLIC ENAMELS. ADDED MIL-PRF-24596 NON-FLAMING PAINTS.

DELETED INTUMESCENT COATING MIL-PRF-46081. EDITED POWDER COATING SPECIFICATIONS, TYPES, AND CLASSES.

• PARAGRAPH 631-3.4.9: NEW PARAGRAPH ADDED TO DESCRIBE MILITARY AND FEDERAL, AND PRF

AND DTL SPECIFICATIONS.

• PARAGRAPH 631-3.4.9.1: NEW PARAGRAPH ADDED TO DESCRIBE ASSIST ONLINE QUALIFIED PROD

UCTS DATABASE (QPD).

• PARAGRAPH 631-3.4.10.1: ADDED NEW PARAGRAPH ON REGULATORY NESHAP VOC LIMITS FOR

MARINE COATINGS.

• TABLE 631-3-5: ADDED NEW TABLE GIVING NESHAP VOC LIMITS FOR MARINE COATINGS BY USAGE

CATEGORY.

• TABLE 631-3-6: ADDED NEW TABLE GIVING VOC LIMITS OF COMMON NAVAL VESSEL COATING

SPECIFICATIONS.

• SECTION 4: CONTENT OF SECTION 4 WAS DELETED AND MOVED TO NSTM 079, VOLUME III.

• PARAGRAPH 631-5.2.1: REPLACED REFERENCE TO MIL-STD-271 WITH NAVSEA T9074-AS-GIB-010/271.

• PARAGRAPH 631-5.2.2: REVISED TO DISCUSS PRE-SURFACE PREPARATION REQUIREMENTS FOR CRITI CAL COATED AREAS REGARDING SURFACE FINISHING OF WELDS AND USE OF VISUAL COMPARATOR/

REPLICA FOR WELD EVALUATION; BREAKING OF EDGES; AND LOW PRESSURE FRESH WATER

WASHING TO REMOVE RESIDUAL SALTS PRIOR TO SURFACE PREPARATION FOR PAINTING. NEW PARA GRAPH CONTAINS INFORMATION PREVIOUSLY IN 631-5.2.4.1.1. TEXT THAT WAS HERE SPECIFIC TO

UNDERWATER HULL COATING MOVED TO 631-8.4.

• PARAGRAPHS 631-5.2.3.2.1 AND 5.2.3.2.2: DELETED THESE PARAGRAPHS CONCERNING CONDITION BASED REPLACEMENT OF COATINGS AND BLISTER CRITERIA FOR WARM WATER TANKS. THIS TYPE

OF EVALUATION AND CRITERIA IS COVERED BY NEW PARAGRAPHS IN 631-1.3.

• PARAGRAPH 631-5.2.3.3: TEXT AND NOTE REGARDING OVER-COATING OF ABLATIVE COPPER AF HULL

COATINGS MOVED TO PARAGRAPH 631-8.4 FOR CLARITY.

• PARAGRAPH 631-5.2.3.4: DELETED THIS PARAGRAPH DESCRIBING USE OF SOLVENT WIPING OR COM PRESSED AIR BLOW-DOWN IN ORDER TO PAINT DAMP EXTERIOR SURFACES, AS THESE PRACTICES ARE NO LONGER RECOMMENDED, AND HAVE NEGATIVE AIR POLLUTION AND SAFETY IMPLICATIONS.

• TABLE 631-5-1: DELETED TABLE ON REPAIR OF CORRODED ALUMINUM AND STEEL STRUCTURE, AS IT WAS GENERAL, NON-BINDING GUIDANCE, AND REQUIREMENTS ARE SET IN OTHER DOCUMENTS, SUCH AS NSTM CHAPTER 100 AND GSO.

• PARAGRAPH 631-5.2.4.1: CLEARLY STATED REQUIREMENT FOR SURFACE PROFILE ON STEEL SUR

FACES AS 2-4 MILS.

REVISION RECORD-3

REVISION NO. DATE TITLE AND/OR BRIEF DESCRIPTION/PREPARING ACTIVITY

• PARAGRAPH 631-5.2.4.1.1: PARAGRAPH DELETED, AND CONTENTS SPLIT AND MOVED TO 3 DIFFERENT

LOCATIONS IN ORDER TO IMPROVE LOGICAL FLOW AND APPLICABILITY OF REQUIREMENTS.

SOLUBLE SALT CONDUCTIVITY TEST METHOD AND CRITERIA MOVED TO SECTION 5.14 (SURFACE PREPARATION QA). WATER WASHING REQUIREMENTS FOR CRITICAL SURFACES MOVED TO 631-5.2.2.

TEXT REGARDING ABRASIVE BLAST FACILITY COMPLIANCE MOVED TO NEW PARAGRAPH 631-5.2.4.1.3.

DELETED RULE OF THUMB REGARDING SURFACE PROFILE REQUIREMENTS.

• PARAGRAPH 631-5.2.4.1.4 (OLD): PARAGRAPH DEALING WITH SPECIAL PRE-SURFACE PREPARATION

CLEANING OF WELL DECKS MOVED TO 631-8.18.2. 631-8.23.2.

• PARAGRAPH 631-5.2.5.3: REVISED SURFACE PREPARATION OF WOOD SURFACES TO ALLOW BRUSH

OFF ABRASIVE BLASTING AND HIGH PRESSURE WATER CLEANING.

• PARAGRAPH 631-5.2.6: REVISED TERM ″PLASTIC SURFACES″ TO ADDRESS GRP, FIBERGLASS AND NON

METALLIC COMPOSITE SURFACES.

• PARAGRAPH 631-5.3.1: ADDED TEXT TO EMPHASIZE THAT USE OF ALL OTHER SSPC SURFACE PREPA

RATIONS STANDARDS REQUIRES SOLVENT CLEANING PER SSPC-SP 1 AS THE INITIAL STEP.

• PARAGRAPH 631-5.3.3: CLARIFIED THAT MINIMUM REQUIRED PROFILE WHEN SSPC-SP 11 IS SPECIFIED

IS 2.0 MILS.

• PARAGRAPH 631-5.3.3.1: ADDED NEW PARAGRAPH REQUIRING SOLVENT CLEANING PRIOR TO POWER

TOOL CLEANING, AND AGAIN AFTER POWER TOOL CLEANING, IF NECESSARY.

• PARAGRAPH 631-5.3.3.2: STRENGTHENED REQUIREMENT TO PROHIBIT POLISHING OF METAL SUR FACES WHEN USING POWER TOOL CLEANING, AND REQUIRED PROFILING USING NEEDLE GUNS IF

POLISHING HAS OCCURRED.

• PARAGRAPH 631-5.3.3.3: ADDED GUIDANCE ON USE OF POWER TOOLS. ADDED NOTE THAT 2 MM

NEEDLES FOR NEEDLE GUNS CAN PRODUCE ACCEPTABLE PROFILE.

• PARAGRAPH 631-5.3.4: ADDED NEW PARAGRAPH TO ALLOW USE OF SSPC-VIS 3 STANDARDS TO

ASSESS CLEANLINESS OF HAND AND POWER TOOL CLEANED STEEL SURFACES.

• PARAGRAPH 631-5.3.5: ADDED NEW PARAGRAPH OPTIONALLY ALLOWING THE USE OF SSPC-SP 6 OR

SSPC-SP-12 WJ-2L INSTEAD OF SSPC-SP 11 WHEN POWER TOOL CLEANING IS SPECIFIED.

• PARAGRAPH 631-5.3.6: NEW SECTION AND TABLE 631-5-2 ADDED TO DESCRIBE THE USE OF RUST

CONVERTERS.

• PARAGRAPH 631-5.4.1: DELETED REFERENCE TO USE OF INHIBITORS WHEN WET BLASTING.

• PARAGRAPH 631-5.4.3: ADDED MATERIAL TO DESCRIBE USE OF ALUMINUM OXIDE, GARNET, AND

WALNUT SHELL ABRASIVES. ADDED NEW PARAGRAPH 631-5.4.3.1 TO DESCRIBE DEGREASING

REQUIRED WHEN ANY AGRICULTURAL MEDIA HAVE BEEN USED.

• PARAGRAPH 631-5.4.3.2: ADDED NEW PARAGRAPH ALLOWING THE USE OF ABRASIVE SPONGE MEDIA

FOR ABRASIVE BLASTING.

• PARAGRAPH 631-5.4.4: ADDED ALLOWANCE TO PROCURE STEEL SHOT AND GRIT ABRASIVES PER SSPC-AB 3, AND WALNUT SHELL ABRASIVES PER A-A-1722. ADDED REQUIREMENT THAT RECYCLED

ABRASIVES COMPLY WITH SSPC-AB 2.

• PARAGRAPH 631-5.4.5: DELETED WARNING AND NOTE CONCERNING USE OF BLASTOX IN ABRASIVE BLAST MEDIA. ADDED TEXT TO STATE THAT DISPOSAL OF SPENT ABRASIVES MUST COMPLY WITH

ALL REGULATIONS, AND THAT TESTING FOR LEAD MAY BE REQUIRED.

• PARAGRAPH 631-5.4.6 THROUGH 5.4.6.2.2: PROHIBITED USE OF ANY INHIBITORS USED FOR WET BLASTING, AND DELETED ASSOCIATED TEXT. REVISED TEXT DESCRIBING WET ABRASIVE BLASTING

(WAB).

REVISION RECORD-4

REVISION NO. DATE TITLE AND/OR BRIEF DESCRIPTION/PREPARING ACTIVITY

• PARAGRAPH 631-5.4.7, 5.4.7.1, 5.4.7.2, 5.4.7.3, 5.4.7.4: REVISED WORDING OF DEFINITIONS OF ABRASIVE BLASTED STEEL SURFACES TO MATCH THOSE IN THE CURRENT APPLICABLE SSPC/NACE STANDARDS.

ADDED REQUIREMENT FOR INITIAL SOLVENT CLEANING PER SSPC-SP 1. ADDED NEW PARAGRAPH 631-5.4.7.5 DESCRIBING CLEANLINESS STANDARDS FOR WET ABRASIVE BLASTING. ADDED NEW PARA GRAPH 631-5.4.7.6 PROVIDING WORDING FOR WHEN SSPC STANDARDS ARE SPECIFIED FOR ALUMINUM

SURFACES.

• PARAGRAPH 631-5.4.8: DELETED SNAME PUBLICATION. ADDED USE OF SSPC-VIS 5 FOR WET ABRA

SIVE BLASTING.

• PARAGRAPH 631-5.5 AND SUBPARAGRAPHS: COMPLETELY REVISED TO REFLECT WATERJETTING VS.

HYDROBLASTING TERMINOLOGY, TO MEET DEFINITIONS AND REQUIREMENTS OF CURRENT VERSION OF SSPC-SP 12 AND SSPC-VIS 4, AND TO REFLECT CURRENT POLICY. REMOVED TEXT DESCRIBING THE

ADDITION OF ABRASIVE TO THE WATERJETTING, TO BE IN COMPLIANCE WITH THE STANDARD.

• PARAGRAPH 631-5.9: REVISED TO PROHIBIT ALL USE OF CHEMICAL PAINT STRIPPERS AND REMOV

ERS UNLESS SPECIFIC APPROVAL IS GRANTED.

• PARAGRAPH 631-5.10.5: DELETED ENTIRE SECTION ON USE OF METHYLENE CHLORIDE PAINT REMOV

ERS.

• PARAGRAPH 631-5.11.5 AND TABLE 631-5-4: DELETED THIS SECTION AND TABLE DEALING WITH COLOR-CODING BARE STEEL, AS IT IS COVERED BY T9074-BD-GIB-010/300, ″BASE MATERIALS FOR CRITICAL APPLICATIONS: REQUIREMENTS FOR LOW ALLOY STEEL PLATE, FORGINGS, CASTINGS, SHAPES, BARS, AND HEADS OF HY-80/100/130 AND HSLA-80/100″.

• PARAGRAPH 631-5.13 (OLD): CITRIC ACID CLEANING METHOD DELETED DUE TO NON-USE.

• PARAGRAPH 631-5.14 (OLD)/5.13 (NEW): REVISED SECTION ON HAND CLEANING OF BILGES TO INCOR

PORATE REQUIREMENTS FOR SUBMARINE BILGES.

• PARAGRAPH 631-5.15 (OLD): SURFACE PREPARATION OF AGED INORGANIC ZINC SURFACES DELETED

DUE TO NON-USE.

• PARAGRAPH 631-5.15 (OLD) FUEL TANK RIVETED LAP-PLATE SEAMS SURFACE PREPARATION:

DELETED DUE TO NON-USE.

• PARAGRAPH 5.14 (NEW)/5.17 (OLD): EXTENSIVELY REVISED TO REFLECT ALL OF THE SURFACE

PREPARATION QA TESTS, INSPECTIONS, AND RECORDS REQUIREMENTS. CONTAINS TEXT MOVED

FROM OTHER AREAS IN SECTION 5. ADDED REQUIREMENT TO VERIFY THAT THE PRE-SURFACE PREPA RATION REQUIREMENTS OF 631-5.2.2 HAVE BEEN MET. ADDED REQUIREMENTS TO DETERMINE THE INITIAL SURFACE CONDITION OF PREPARED SURFACES, VERIFY THE CERTIFICATION OF THE BLAST MEDIA, AND INSPECT FOR THE REMOVAL OF RESIDUAL DUST AFTER SURFACE PREPARATION IAW ISO 8502-3. ADDED USE OF SSPC-VIS 3, SSPC-VIS 4, AND SSPC-VIS 5 FOR EVALUATING SURFACE CLEANLI NESS COMPLIANCE. CLARIFIED SURFACE PROFILE REQUIREMENTS AND MEASUREMENTS. UPDATED SURFACE SALT TESTING REQUIREMENT AND CRITERIA TO ALLOW EITHER CHLORIDE OR CONDUCTIV ITY TESTING. MODIFIED PARAGRAPH SO IT IS NOT EXCLUSIVE TO ABRASIVE BLASTING, SINCE SP-11

OR SP-12 ARE OTHER CLEANLINESS LEVELS APPROVED FOR SOME CRITICAL COATED AREAS.

• FIGURE 631-5.1: NEW FIGURE ADDED TO PROVIDE SURFACE CONDUCTIVITY TEST METHOD. FIGURE

ADAPTED FROM APPENDIX 8 OF CORE PPI 63101-000, REV. 12.

• PARAGRAPH 631-6.2.2.5: ADDED NEW PARAGRAPH UNDER PAINTING DOCUMENTATION REQUIRE

MENTS DESCRIBING NEED TO UPDATE THE CCIMS DATABASE.

• PARAGRAPH 631-6.3.2: EXEMPTED SPECIFIC SURFACE TOLERANT EPOXY COATINGS FROM DEW POINT

AND RELATIVE HUMIDITY REQUIREMENTS. CLARIFIED MAXIMUM RELATIVE HUMIDITY REQUIRE

MENTS FOR LONG-LIFE COATING SYSTEMS IN TANKS AND VOIDS, AND FOR WHEN WATER-JETTING IS

USED.

• PARAGRAPH 631-6.3.3.2.2: NEW PARAGRAPH WITH REQUIREMENTS THAT PROHIBIT SUBDIVIDING AND

MIXING 2-COMPONENT PAINTS, REGARDLESS OF THE MIX RATIO.

REVISION RECORD-5

REVISION NO. DATE TITLE AND/OR BRIEF DESCRIPTION/PREPARING ACTIVITY

• PARAGRAPH 631-6.4.1: REVISED NOTE AND DELETED REQUIREMENT THAT PAINTING BEGIN WITHIN 6 HOURS OF BLASTING. INSTEAD, REQUIRED SPECIFIED CLEANLINESS TO STILL EXIST AT TIME OF

PAINTING, REGARDLESS OF ELAPSED TIME BETWEEN SURFACE PREPARATION AND PAINTING.

• PARAGRAPH 631-6.4.6: ENTIRE NEW SECTION AND SUB-PARAGRAPHS ADDED TO ADDRESS USE OF

PLURAL COMPONENT SPRAYING EQUIPMENT. SECTION 631-6.4 PARAGRAPHS REORDERED AND

RENUMBERED.

• PARAGRAPH 631-6.4.5 (OLD)/631-6.4.7 (NEW): DELETED NOTE REFERRING TO HOT SPRAYING OF VINYL

PAINTS, SINCE USE OF VINYL PAINTS HAS BEEN DELETED FROM THE NSTM.

• PARAGRAPH 631-6.5 AND FIGURE 631-6-5: REVISED PHOTOGRAPHIC EXAMPLES AND DESCRIPTIONS OF

TYPES OF PAINT FAILURES. ADDED REFERENCE TO SSPC PUBLICATION ″VISUAL COMPARISON

MANUAL: APPLICATION AND COATING DEFECTS″.

• PARAGRAPH 631-7.1.1: REVISED PARAGRAPH ON PRECEDENCE OF DOCUMENTS AND CONFLICT RESO

LUTION.

• PARAGRAPH 631-7.1.2: ADDED REQUIREMENT TO APPLY ALL PAINTS IAW NAVSEA-APPROVED ASTM

F718 DATA SHEETS, EXCEPT FOR MIL-DTL-24441 PAINTS.

• PARAGRAPH 631-7.1.3: ADDED NEW PARAGRAPH TO PROVIDE UNIVERSAL STRIPE COAT APPLICATION

REQUIREMENTS.

• PARAGRAPH 631-7.1.4: ADDED NEW PARAGRAPH AND SUBPARAGRAPHS PROVIDING DETAILED

REQUIREMENTS FOR COATING APPLICATION QA TESTS, INSPECTIONS, AND RECORDS. NEW PARA GRAPH CONTAINS REQUIREMENTS FOR ENVIRONMENTAL CONDITIONS; TYPE, SHELF LIFE, STORAGE, AND RECEIPT INSPECTION OF COATINGS; PAINT MIXING, INDUCTION, CURE AND OVERCOAT TIMES;

WFT AND DFT REQUIREMENTS; STRIPE COATS; WORKMANSHIP; AND VISUAL AND WET-SPONGE HOLI

DAY INSPECTIONS.

• PARAGRAPH 631-7.1.5: ADDED NEW PARAGRAPH ON COATINGS ON WELDS THAT ARE TO BE

PRESSURE-TESTED.

• PARAGRAPH 631-7.2.1.1: NEW PARAGRAPH FOR 90F MAXIMUM MIXING, APPLICATION, AND CURE TEMPERATURE (SURFACE AND AMBIENT) FOR MIL-DTL-24441 TYPE III AND IV COATINGS. TABLES 631-7-1 THROUGH 631-7-4 FOR INDUCTION TIME, POT LIFE, AND CURE TIMES ALSO EDITED TO REFER

TO THIS PARAGRAPH FOR TEMPERATURE LIMITS.

• PARAGRAPH 631-7.2.4.7.1: DELETED PARAGRAPH DEALING WITH THINNING OF MIL-DTL-24441 PAINTS.

• PARAGRAPH 631-7.2.5.2: EDITED TO SHOW THAT TYPE IV MIL-DTL-24441 COATINGS DO NOT REQUIRE

AN INDUCTION TIME.

• TABLE 631-7-1: EDITED TABLE HEADER, AND CHANGED TEMPERATURE RANGES TO PREVENT OVER LAP, FOR MIL-DTL-24441 INDUCTION TIME. ADDED NOTE TO SHOW THAT TYPE IV COATINGS DO NOT

REQUIRE AN INDUCTION TIME.

• TABLE 631-7-2: CORRECTED TABLE HEADER TO INDICATE POT LIFE.

• PARAGRAPH 631-7.2.5.6.2: CLARIFIED RELATIVE HUMIDITY REQUIREMENTS FOR LONG-LIFE COATING

SYSTEMS IN TANKS AND VOIDS.

• PARAGRAPH 631-7.2.5.6.4: ENTIRE PARAGRAPH ON RECORD-KEEPING SPECIFIC TO PAINTING WITH MIL-DTL-24441 PAINT DELETED, SINCE RECORD-KEEPING IS ONLY REQUIRED FOR DEFINED CRITICAL

COATED AREAS, AND IS DESCRIBED IN 631-7.1.4 AND SECTION 11.

• PARAGRAPH 631-7.2.6.1: DELETED PARAGRAPH DEALING WITH THINNING OF MIL-DTL-24441 PAINT.

• PARAGRAPH 631-7.2.6.4 TO 7.2.6.7: REARRANGED PARAGRAPH ORDER AND CLARIFIED REQUIREMENTS

FOR CURE TIMES BETWEEN COATS OF MIL-DTL-24441 COATINGS. CHANGED POLICY FOR

OVERCOATING MIL-DTL-24441 EPOXY WITH NON-EPOXY TOPCOATS SUCH AS MIL-PRF-24635, SUCH

THAT EPOXY MUST BE DRY TO TOUCH INSTEAD OF TACKY.

REVISION RECORD-6

REVISION NO. DATE TITLE AND/OR BRIEF DESCRIPTION/PREPARING ACTIVITY

• PARAGRAPH 631-7.3: REVISED WORDING OF PARAGRAPH DESCRIBING USE OF OBSOLETE FORMULA 117 PRE-TREATMENT PRIMERS, AND MOVED TO PARAGRAPH 631-7.4. INSERTED REVISED PARAGRAPH ON USE OF MIL-PRF-23236 COATINGS, MOVED FROM PARAGRAPH 631-8.7. ADD PARAGRAPH 631-7.3.2 ON ALLOWABLE RUNS, DRIPS, AND SAGS IN 100% SOLIDS COATINGS, AS TAKEN FROM NAVSEA STD. ITEM 009-32. ADD PARAGRAPH 631-7.3.3.1 FOR BRUSHABLE GRADES OF SELECT SHERWIN WILLIAMS MIL-PRF 23236 TYPE VII PAINTS. ADDED PARAGRAPH 631-7.3.4 FOR TOPCOATING MIL-PRF-23236 EPOXY PAINTS WITH NON-EPOXY PAINTS. ADDED NEW PARAGRAPH 631-7.3.5 ON MIL-PRF-23236 PAINTS APPROVED

FOR INTERIOR SUBMARINE USE PER THE SUBMARINE ATMOSPHERE CONTROL PROGRAM.

• PARAGRAPH 631-7.4: DISCUSSION OF VINYL ANTI-FOULING PAINT (FORMULAS 121 AND 129) APPLICA

TION DELETED, DUE TO OBSOLESCENCE AND NON-USE.

• PARAGRAPH 631-7.6: MATERIAL FROM 631-3.2.9 ON METAL SPRAY COATINGS MOVED AND INTE GRATED HERE. NEW PARAGRAPH 631-7.6.5 ADDED TO REQUIRE USE OF TRAINED COATING INSPECTOR, AS DESCRIBED IN 631-11.6 AND 631-11.7, AND TO INVOKE THIS REQUIREMENT IF THE THERMAL SPRAY

COATING WORK IS SUB-CONTRACTED.

• PARAGRAPH 631-7.7: DELETED PARAGRAPHS 631-7.7.1 THROUGH 631-7.7.3.4, TABLES 631-7-5 THROUGH 631-7-7, AND FIGURE 631-7-1, ALL DEALING WITH POLYSULFIDE SEALANTS AND POLYURETHANE TOP COATS USED AS SEALANTS FOR FUEL TANK RIVETED LAP PLATE SEAMS, DUE TO OBSOLESCENCE.

RETAINED PARAGRAPH 631-7.7.4 DESCRIBING APPLICATION OF EROSION-RESISTANT 3M EC-2216 COAT

INGS. RENUMBERED PARAGRAPHS AND TABLES ACCORDINGLY.

• PARAGRAPH 631-7.8: VERMICULITE REMOVED AS AN ANTI-SWEAT TREATMENT FOR NEW APPLICA TIONS, AND REPLACED BY HEMPEL, TEMP-COAT, KEFA DRYTECH, AND DELTA-T MARINE PRODUCTS.

REPAIR OF EXISTING VERMICULITE TREATMENTS WITH VERMICULITE IS PERMITTED.

• PARAGRAPH 631-7.8.6 ON EPOXY REPAIR AND HULL SMOOTHING COMPOUNDS MOVED INTO NEW

PARAGRAPH 631-7.12 .

• PARAGRAPH 631-7.9: REVISED SECTION DESCRIBING POWDER COATINGS. ALLOWED SURFACE PREPA RATION PRE-TREATMENTS FOR COSMETIC POWDER COATING TO BE CHEMICAL CLEANING OR PHOS

PHATE PRE-TREATMENTS, IAW COMMERCIAL PRACTICE.

• PARAGRAPH 631-7.10: NEW SECTION ADDED CONCERNING USE OF TT-P-28 HEAT RESISTANT COAT

INGS.

• PARAGRAPH 631-7.11: NEW SECTION ON USE OF WATER-BASED COATINGS, MOVED FROM 631-8.23.

• THIS REVISION ADDRESSES FOLLOWING TMDERS: N45404-02-4401, A00000-04-0225.

• PARAGRAPH 631-8.2: REVISED EXTENSIVELY TO DISTINGUISH BETWEEN REQUIREMENTS AND GUID ANCE, AND CLARIFIED SAME FOR DIFFERENT TYPES OF METALLIC SURFACES. DELETED PARAGRAPH ON FORMULA 117 PRE-TREATMENT PRIMER; REFER TO PARAGRAPH 631-7.4. REVISED PAINTING PIPING IN SEAWATER AND FUEL OIL TANKS TO REFLECT VARIETY OF CORROSION RESISTANT PIPING SYSTEM

MATERIALS THAT MAY BE FOUND IN TANKS.

• TABLE 631-8-1 (OLD): DELETED THIS TABLE WITH REQUIREMENTS FOR PAINTING EXTERIOR AND

INTERIOR STRUCTURAL ALUMINUM SURFACES, SINCE THESE REQUIREMENTS ARE CONTAINED IN

PARAGRAPH 631-8.23 AND THE TABLES REFERENCED THEREIN.

• PARAGRAPH 631-8.3: REVISED EXTENSIVELY TO DISTINGUISH BETWEEN REQUIREMENTS AND GUID ANCE, AND CLARIFIED SAME FOR DIFFERENT TYPE OF NON-METALLIC SURFACES. DELETED USE OF

ALUMINUM PASTE AND VARNISH AS A TREATMENT FOR WOOD SURFACES, AND SUBSTITUTED MIL

DTL-24441 OR MIL-PRF-23236 TYPE VI EPOXY.

REVISION RECORD-7

REVISION NO. DATE TITLE AND/OR BRIEF DESCRIPTION/PREPARING ACTIVITY

• PARAGRAPH 631-8.4 AND 631-8.6 DELETED OLD PARAGRAPHS 8.4.1 THROUGH 8.4.3, AND 8.6.1 THROUGH 8.6.3. REVISED PARAGRAPH TO APPLY TO SURFACE SHIP UNDERWATER HULL COATINGS FOR ALL TYPES OF HULL MATERIALS. MOVED RELATED TEXT FROM PARAGRAPHS 631-5.2.3.3 (NOTE), 631-8.23, AND TABLE 631-8-11 HERE. ADDED USE OF E-PAINT SN-1 GRAY AF COATING FOR EMBARKED

ALUMINUM BOATS AND CRAFT. UPDATED GRAY AF COATINGS FOR USE ON EMBARKED BOATS IN

ORDER TO MEET CAMOUFLAGE REQUIREMENTS, PER NAVSEA MESSAGE R040500Z OCT 03. OLD TABLES 631-8-2 AND 631-8-3 DELETED, AS NEW TABLE 631-8-2 SUPERCEDES THEM. NEW TABLE 631-8-2 REFLECTS NEW TYPE, GRADE, CLASS DESIGNATIONS IN PENDING REVISION TO MIL-PRF-24647.

DELETED REFERENCES TO USE OF ORGANOTIN (TBT) PAINTS. ADDED NEW PARAGRAPH ON BASELINE HULL COATING SYSTEM DFT MEASUREMENTS, TO COMPLEMENT SIMILAR REQUIREMENT IN 009-32.

ADDED PARAGRAPHS ON COATING PROPULSION SHAFT BEARING VOIDS, AND RUDDERS, STRUTS, AND OTHER EROSION-PRONE AREAS. MADE USE OF 3M EC-2216 COATING FOR EROSION-PRONE AREAS

OPTIONAL AS DESIRED BY TYCOM. ADDED REQUIREMENT THAT SURFACE PREPARATION ON NEW

WELDS ON HULL BE SSPC-SP 10.

• PARAGRAPH 631-8.5 (NAVSEA-APPROVED COATINGS FROM PROPRIETARY SOURCES): MOVED PARA

GRAPH TO PARAGRAPH 631-3.4.2, AS THIS IS A MORE APPROPRIATE LOCATION.

• PARAGRAPH 631-8.7 (OLD): REVISED WORDING OF PARAGRAPH DESCRIBING USE OF MIL-PRF-23236

COATINGS, AND MOVED TO PARAGRAPH 631-7.3.

• TABLE 631-8-2 (NEW): REVISED TABLE PROVIDING POTABLE WATER TANK COATING REQUIREMENTS.

DELETED REFERENCES TO INTERGARD, DEVRAN, AND VALSPAR COATINGS FOR POTABLE WATER

TANKS. ADDED MIL-PRF-23236 COATINGS. REVISED MIL-DTL-24441 TYPE III SYSTEM TO INDICATE THE DEFAULT (PREFERRED) FORMULA NUMBER ORDER (150/152/151/150/152), AND SPECIFICALLY PROHIB

ITED USE OF F159.

• PARAGRAPH 631-8.8 (NEW 631-8.5): REVISED VARIETY OF REQUIREMENTS FOR POTABLE WATER TANKS, TO REFLECT CURRENT POLICY AND STD. ITEM 009-32. RENUMBERED PARAGRAPHS ACCORD INGLY. CHANGES INCLUDE: CONTROL OF DFT; USE OF WFT GAGES BY PAINTERS; DELETED PARA

GRAPH DESCRIBING MIL-DTL-24441 TYPE III AS THE PREFERRED COATING SYSTEM; DELETED

PARAGRAPH ON USE OF OBSOLETE FORMULA 102, MIL-E-15145; ADDED 50% RELATIVE HUMIDITY

LIMIT.

• PARAGRAPH 631-8.9 (OLD)/631-8.6 (NEW) AND TABLE 631-8-5 (OLD)/631-8-3 (NEW): ADDED USE OF MIL PRF-23236 TYPE VI OR VII, CLASS 11 COATINGS; DELETED APPROVAL FOR USE OF POTABLE WATER

TANK COATINGS IN FEEDWATER TANKS; DELETED DEVRAN AND SOVAPON COATINGS FOR

FEEDWATER TANKS; ADDED FRESH WATER DRAIN COLLECTION TANKS. REVISED MIL-DTL-24441 TYPE III SYSTEM TO INDICATE THE DEFAULT (PREFERRED) FORMULA NUMBER ORDER (150/152/151/150/152), AND SPECIFICALLY PROHIBITED USE OF F159.

• PARAGRAPH 631-8.10 (OLD)/631-8.7 (NEW): ADDED SURFACE PREPARATION REQUIREMENTS; MOVED TABLE NOTES INTO PARAGRAPH TEXT; ADDED INFORMATION ON USE OF HIGH-TEMPERATURE COAT

INGS; CLARIFIED TEMPERATURE RANGES FOR HEATED VS. UN-HEATED SYSTEMS; COMPLETELY

REVISED TABLE FORMAT.

• PARAGRAPH 631-8.11 (OLD)/631-8.8 (NEW): REVISED COATING SYSTEMS; ADDED SURFACE PREPARA

TION REQUIREMENTS; MOVED INFORMATION ON SWITCHBOARDS AND PANELS HERE.

• PARAGRAPH 631-8.13 (OLD): MOVED SINGLE PARAGRAPH ON SWITCHGEAR AND PANELS TO NEW

PARAGRAPH 631-8.8.2 UNDER ELECTRICAL EQUIPMENT.

• PARAGRAPH 631-8.14 (OLD)/631-8.10 (NEW): DELETED USE OF OCEAN 634 AND OCEAN 9788 COATINGS FOR ELECTRICAL CABLES, AND SPECIFIED USE OF PAINTS PER MIL-PRF-24596, AND OTHER COATINGS

AS PER 009-32.

• PARAGRAPH 631-8.15 (OLD)/631-8.11 (NEW), AND TABLE 631-8-8 (OLD): REVISED REQUIREMENTS FOR

COATING METAL ENCLOSURES USED INSIDE THE SHIP; ADDED SURFACE PREPARATION REQUIRE

MENTS; ADDED POWDER COATING OPTIONS; DELETED TABLE 631-8-8.

REVISION RECORD-8

REVISION NO. DATE TITLE AND/OR BRIEF DESCRIPTION/PREPARING ACTIVITY

• PARAGRAPH 631-8.15.2: ADDED NEW PARAGRAPH, AND ACCOMPANYING TABLE 631-8-6 FOR PAINTING

OF SUBMARINE BOW DOMES.

• PARAGRAPH 631-8.17: NEW ITEMS ADDED TO THE LIST OF COMPONENTS THAT SHALL NOT BE PAINTED, SUCH AS ALUMINUM ACCOMMODATION LADDER PARTS, PARTS OF DOORS, HATCHES AND

SCUTTLES, LIFELINES, ETC.

• PARAGRAPH 631-8.18: PARAGRAPH ON RADAR AND ACOUSTICAL EQUIPMENT AND SONAR DOMES

DELETED, AS IT PROVIDED NO MEANINGFUL REQUIREMENTS.

• PARAGRAPH 631-8.19 AND SUBPARAGRAPHS: DELETED REFERENCES TO OBSOLETE ANTENNAS AND

REFERRED TO ANTENNA TECHNICAL MANUALS FOR REPRESERVATION PROCEDURES. UPDATED MIL

DTL-24441 PAINT SPECIFIED. UPDATED REFERENCE TO NIMB, NAVSEA SE000-01-IMB-010.

• PARAGRAPH 631-8.21 (OLD)/631-8.16 (NEW) AND TABLE 631-8-9 (OLD)/631-8-6 (NEW): TABLE LAYOUT

AND COATINGS SYSTEMS COMPLETELY REVISED; EXPANDED NOMENCLATURE FOR TERM ″SMOKE

PIPES″; DELETED USE OF INORGANIC ZINC PRIMERS; MOVED PAINTING OF VENTILATION DUCTS, TRUNKS, AND PLENUMS TO SECTION ON PAINTING INTERIOR STRUCTURE, AND ADDED NOTE

REGARDING REPLACING RUSTED STEEL SHEET METAL DUCTING WITH CRES 316 IAW GSO SECTION 512.

• PARAGRAPH 631-8.18 (NEW): COMPLETE REVISION OF THIS PARAGRAPH AND SUBPARAGRAPHS.

PARAGRAPH NOW COVERS ALL SURFACE SHIP EXTERIOR AND INTERIOR STRUCTURAL PAINTING

REQUIREMENTS. TABLES 631-8-7 THROUGH 631-8-11 ACCOMPANY THIS PARAGRAPH. TABLE LAYOUTS

FOR COATING SYSTEM SELECTION REVISED TO USE COMMON FORMAT USED THROUGHOUT THE

REVISED NSTM. SURFACE PREPARATION REQUIREMENTS FOR VARIOUS AREAS CLEARLY DEFINED.

COATING SYSTEMS REVISED. DELETED USE OF INORGANIC ZINC COATINGS. DELETED ALUMINUM PASTE AND VARNISH FOR WOOD PRIMING. ADDED REQUIREMENT THAT SURFACE PREPARATION ON NEW WELDS ON FREEBOARD BE SSPC-SP 10. DELETED LIST OF COMPANIES THAT MADE PAINTS DESIG NATED AS FORMULA 25A, SINCE THAT PAINT IS NOW COVERED BY MIL-PRF-24596. (SIMILAR CHANGES

WERE MADE THROUGHOUT WHERE F25A AND MIL-PRF-24596 WERE SEPARATELY REFERENCED.)

CHANGED REQUIREMENT FOR PRIMING INTERIOR DECKS AND BULKHEADS WITH TT-P-645 F84 FROM

ONE COAT TO TWO COATS TO ENSURE ADEQUATE COVERAGE. ADDED SECTIONS FOR WEAR RESIS

TANT AND AFFF STATION DECK PAINTS. MOVED PARAGRAPH ON GENERAL INFORMATION FOR USE OF WATER BASED PAINTS TO SECTION 7. MOVED TEXT OF MANY TABLE NOTES INTO MAIN BODY TEXT. DELETED USE OF INTUMESCENT PAINT FOR UNPAINTED SURFACE SHIP FIRE ZONE BULKHEADS.

ADDED PARAGRAPH AND TABLE LINE FOR COATING EXTERIOR WATERTIGHT CLOSURES. REVISED

SECTION DEALING WITH ANTI-SWEAT COATINGS.

• PARAGRAPHS 631-8.18.4 AND 631-8.18.5: NEW PARAGRAPHS ADDED TO CLARIFY COATING REQUIRE

MENTS FOR HVAC INTAKE PLENUMS, TRUNKS, AND DUCTS, AND COMBUSTION AIR INTAKES AND

UPTAKES, RESPECTIVELY.

• PARAGRAPH 631-8.18.6 AND TABLE 631-8-11: COMPLETELY REVISED AND UPDATED COATING REQUIREMENTS FOR TANKS, VOIDS, BILGES, AND CHAIN LOCKERS, TO BE CONSISTENT WITH 009-32

FY07, AND OTHER CURRENT POLICY. SIGNIFICANT CHANGES INCLUDE:

• A) MODIFIED RELATIVE HUMIDITY REQUIREMENTS;

• B) MODIFIED REQUIREMENTS FOR EDGE RADIUS VS. EDGE BREAKING FOR 100% SOLIDS VS. OTHER

TYPES OF COATINGS;

• C) COMMON REQUIREMENTS FOR WELD SURFACE FINISHING IN ALL TYPES OF CRITICAL COATED

AREAS MODIFIED AND MOVED TO SECTION 5 (REF. TMDER N45404-02-4401); TT-P-28.

• D) MANY FORMER NOTES TO OLD TABLE 631-8-15 MOVED INTO TEXT;

• E) MANY SURFACE PREPARATION QA REQUIREMENTS COMMON TO ALL CRITICAL COATED AREAS MOVED TO 631-5.14; REPLACED SURFACE SALT CHLORIDE TESTING BY BRESLE METHOD WITH CON

DUCTIVITY METHOD AND LIMITS;

• F) CLARIFIED REQUIREMENTS FOR COATING CORROSION RESISTANT METALS IN TANKS;

REVISION RECORD-9

REVISION NO. DATE TITLE AND/OR BRIEF DESCRIPTION/PREPARING ACTIVITY

• G) DELETED OLD PARAGRAPH 631-8.23.10.8 ON USE OF PROPRIETARY COATINGS, AS IT IS NO LONGER NEEDED DUE TO REVISIONS TO THIS SECTION AND USE OF MIL-PRF-23236C COATING SYSTEMS;

• H) DELETED ALL USE OF INORGANIC ZINC PRIMERS;

• I) ADDED COATING REQUIREMENTS FOR MANHOLE COVERS.

• PARAGRAPH 631-8.18.7: NEW PARAGRAPH ADDED FOR COATING REQUIREMENTS IN WET SPACES.

• (OLD PARAGRAPH 631-8.25 ON SUBMARINE COATING REQUIREMENTS NOW NUMBERED PARAGRAPH 631-8.20.)

• PARAGRAPH 631-8.20.1: ADDED NEW PARAGRAPH AND SUBPARAGRAPHS ADDRESSING COORDINA

TION WITH SUBMARINE URO MRC’S. RENUMBERED SUBSEQUENT PARAGRAPHS ACCORDINGLY.

• PARAGRAPH 631-8.20.2: COMPLETELY REVISED THIS PARAGRAPH AND SUBPARAGRAPHS PERTAINING TO EXTERIOR SUBMARINE COATINGS. ADDRESSED COATINGS FOR SURFACES COVERED BY SHT AND

MIP, AND COATING OF BOW DOMES AND FIBERGLASS FAIRINGS.

• TABLE 631-8-13 (NEW)/631-8-12 (OLD): COMPLETELY REVISED TABLE FORMAT AND CONTENTS FOR

SUBMARINE EXTERIOR COATINGS, TO COMPLEMENT NEW PARAGRAPH 631-8.20.2.

• PARAGRAPH 631-8.20.3.1: DELETED LIST OF MANUFACTURERS FOR FORMULA 25A INTERIOR PAINT, AND REFERRED TO REVISED MIL-PRF-24596 AND ITS QPL INSTEAD.

• PARAGRAPH 631-8.20.5: PREVIOUS TEXT CONCERNING TORPEDO TUBE PAINTING ON DECOMMIS

SIONED CLASSES OF SUBMARINES DELETED. NEW SECTION ON SUBMARINE POWDER COATINGS

INSERTED.

• PARAGRAPH 631-8.20.6.5: ADDED NEW PARAGRAPH ON PAINTING OF RUBBER PIPE HANGER COMPO NENTS FOR SUBMARINES, IAW NAVSEA LTR 9631, SER 92T125/0352 OF 4 AUG 2000. CROSS-REFERENCES

TO THIS PARAGRAPH ADDED TO 631-8.17.1 LIST OF ITEMS NOT TO BE PAINTED.

• TABLE 631-8-15 (OLD TABLE 8-14): DELETED NOTE 13, AND ALL REFERENCES TO FORMULA 102

PAINTS.

• PARAGRAPH 631-9.1.2 ADDED TO PROVIDE INFORMATION ON CAMOUFLAGE REQUIREMENTS OF

BOATS AND SMALL CRAFT, AS PER NAVSEA MESSAGE R040500Z OCT 03.

• PARAGRAPH 631-9.1.2 CHANGED PRIMER FOR WOOD SURFACES OF BOATS AND SMALL CRAFT FROM

ALUMINUM PASTE AND VARNISH TO MIL-DTL-24441, F150 EPOXY.

• PARAGRAPH 631-9.2.3.1: DELETED REFERENCES TO USE OF INORGANIC ZINC PRIMERS.

• PARAGRAPH 631-9.3.2: DELETED OLD PARAGRAPH ON PRIMING STEEL BOATS AND CRAFT, AS IT IS

NOW COVERED IN 631-8.4.

• PARAGRAPH 631-9.9: DELETED OBSOLETE PARAGRAPH DEALING WITH AVR BOATS.

• PARAGRAPH 631-10.4.1: REVISED REQUIREMENTS FOR DRAFT MARKS TO REFER TO NEW PARAGRAPH

IN PARAGRAPH 631-8.4.1.

• PARAGRAPH 631-10.7.2, 631-10-7-3: CHANGED ORDER OF FIGURES 631-10-3 AND 631-10-4, AS THEY

WERE MENTIONED IN REVERSE ORDER.

• SECTION 11: DELETED FREQUENT USE OF THE TERM ″IN CRITICAL COATED AREAS″ IN THE SUB PARAGRAPHS IN THIS SECTION, SINCE THE SECTION APPLIES TO CRITICAL COATED AREAS BY DEFINI

TION.

• PARAGRAPH 631-11.1: CLARIFIED THAT SECTION 11 QA REQUIREMENTS APPLY TO CONTRACTORS AS

WELL AS SHIPYARDS THAT PERFORM PAINTING OF CRITICAL COATED AREAS.

• PARAGRAPH 631-11.2: REVISED TO PROVIDE SPECIFIC LISTING OF DEFINED CRITICAL COATED AREAS.

(LIST COMPLEMENTS THAT IN 009-32, FY-06, PARAGRAPH 3.4.)

• PARAGRAPH 631-11.3: REQUIRED PRIVATE SHIPYARDS AND CONTRACTORS ACTUALLY PERFORMING PRESERVATION OF CRITICAL COATED AREAS TO BE CERTIFIED IAW SSPC QP-1. BROKE OUT SEPARATE SUBPARAGRAPH 631-11.3.2 TO INDICATE THAT THERE ARE ADDITIONAL REQUIREMENTS FOR POTABLE

WATER, FEEDWATER, AND HIGH PURITY WATER TANKS.

REVISION RECORD-10

REVISION NO. DATE TITLE AND/OR BRIEF DESCRIPTION/PREPARING ACTIVITY

• PARAGRAPH 631-11.4: CLARIFIED REQUIREMENT TO INCLUDE DRYDOCKING REPORT PAINTING RECORDS AS PART OF THE PAINTING RECORDS TO BE MAINTAINED FOR CRITICAL COATED AREAS.

ADDED REQUIREMENT TO USE QA FORMS IN APPENDICES OF STD. ITEM 009-32 (PER FY-07CH1).

• PARAGRAPH 631-11.5: ADDED REQUIREMENT THAT DRY ABRASIVE BLASTING PERSONNEL BE

TRAINED PER SSPC C-7, AND THAT PLURAL COMPONENT PAINT APPLICATION PERSONNEL BE CERTI FIED PER THE SSPC C-14 M-PCAC PROGRAM, OR THEIR NAVSEA-APPROVED EQUIVALENTS. REQUIRED

THAT A COPY OF THE NAVSEA APPROVAL LETTER BE MAINTAINED BY THE CONTRACTOR FOR

EQUIVALENT CERTIFICATIONS.

• PARAGRAPH 631-11.5.1: NEW PARAGRAPH ADDED TO DESCRIBE MINIMUM ACCEPTABLE ELEMENTS

OF AN ALTERNATE ABRASIVE BLASTING TRAINING COURSE TO SSPC C-7.

• PARAGRAPH 631-11.6: CLARIFIED COATING INSPECTOR CERTIFICATION REQUIREMENTS FOR CRITI

CAL COATED AREAS. MOVED REQUIREMENT FOR CERTIFIED INSPECTORS FOR THERMAL SPRAYED

COATINGS TO PARAGRAPH 631-7.6.5.

• PARAGRAPH 631-11.7: CLARIFIED COATING INSPECTOR RESPONSIBILITIES TO INCLUDE OTHER COAT ING PROCESS SPECIFICATIONS OR DOCUMENTS THAT ARE INVOKED IN THE SPECIFICATION FOR THE

WORK BEING PERFORMED

• PARAGRAPH 631-11.8: REVISED TO REFLECT PAINT STORAGE SHALL BE AS PER THE NAVSEA

APPROVED ASTM F718 DATA SHEETS.

• PARAGRAPH 631-11.9: ADDED REQUIREMENT THAT THE COATING INSPECTOR SHALL BE INDEPEN

DENT OF THE SHOP OR CODE PERFORMING THE WORK.

• PARAGRAPH 631-11.11: REVISED REQUIREMENTS FOR INSPECTION OF FINAL COATING SYSTEM.

• TABLE 631-11-1: ADDED CROSS-REFERENCES TO KEY QA REQUIREMENTS PARAGRAPHS 631-5.2.2, 631 5.14, AND 631-7.1.4 TO SECTION HEADERS AND TABLE NOTES. CONDENSED AND REVISED NOTES TO DELETE TECHNICAL REQUIREMENTS AND TEST METHODS AND CRITERIA, SINCE THIS INFORMATION IS NOW CONTAINED IN SINGLE LOCATIONS 631-5.2.2, 631-5.14, AND 631-7.1.4, AS APPROPRIATE TO THE

STAGE OF THE PRESERVATION PROCESS.

• TABLE 631-11-1: ADDED NEW GENERAL NOTE REQUIREMENT TO SUBMIT ASTM F718 DATA SHEETS AS

A PART OF THE DOCUMENTATION PACKAGE FOR EACH COATING USED.

• TABLE 631-11-1 PART I, ROW 1.A: IN ADDITION TO MIL-A-22262, ADDED CERTIFICATION OF ABRASIVE

BLASTING MEDIA PER SSPC-AB 3, AS REQUIRED BY THE JOB SPECIFICATION.

• TABLE 631-11-1 PART I, ROWS 1.B AND 1.C: ADDED NEW REQUIREMENT TO OBTAIN A COPY OF THE

ORIGINAL COATING MANUFACTURER’S CERTIFICATE OF COMPLIANCE TO THE PAINT MATERIAL

SPECIFICATION. REVISED RECEIPT INSPECTION REQUIREMENTS TO CLARIFY THAT THEY APPLY TO ALL DEFINED CRITICAL COATED AREAS, NOT JUST TANKS, AND REVISED TABLE NOTE FOR RECEIPT INSPECTION TO REFLECT PAINT SPECIFICATION CONFORMANCE TESTS. CLARIFIED THAT DATE PAINT

WAS RECEIVED BY COATING INSTALLER IS TO BE RECORDED.

• TABLE 631-11-1 PART I, ROW 2.C: ADDED NEW REQUIREMENT TO MONITOR PAINT STORAGE TEM PERATURES FOR 24 HOURS PRIOR TO USE, AND TO RECORD THE MINIMUM AND MAXIMUM TEMPERA

TURES MEASURED.

• TABLE 631-11-1 PART II, ROW 1.F: ADDED REQUIREMENT TO TEST FOR SURFACE CONDUCTIVITY AND

RESIDUAL DUST.

• TABLE 631-11-1 PART II, ROW 2.B: ADDED REQUIREMENT TO TEST FOR RESIDUAL DUST.

• TABLE 631-11-1 PART III, ROW 2.A: MODIFIED TO STATE THAT PAINTS USED ARE AS PER THE APPLI CABLE JOB SPECIFICATION, OR PER NSTM 631 OR STD. ITEM 009-32, INSTEAD OF A LIST OF SEVERAL

OTHER DOCUMENT REFERENCES.

• TABLE 631-11-1 PART III, ROW 4.A: CLARIFIED TIME RECORDING REQUIREMENTS FOR SURFACE

PREPARATION AND PRIMING.

• TABLE 631-11-1 PART IV, ROW 1.C: ADDED CONTRASTING COLOR REQUIREMENT FOR STRIPE COATS.

REVISION RECORD-11

REVISION NO. DATE TITLE AND/OR BRIEF DESCRIPTION/PREPARING ACTIVITY

• TABLE 631-11-1 PART IV, ROW 1.D: ADDED REFERENCE TO PARAGRAPH 631-8.8.6 FOR DRYING AND

CURING REQUIREMENTS IN POTABLE WATER TANKS.

• TABLE 631-11-1 NOTE 10: APPLIED NOTE TO TABLE, IN ROW FOR DFT MEASUREMENTS, AS IT WAS NOT PREVIOUSLY CITED. MODIFIED NOTE, AND ADDED REFERENCE TO NEW TEXT ON USING WFT TO

DETERMINE DFT IN 631-8.4.

• PARAGRAPH 631-12.1: CHANGED TO INDICATE THAT PPI’S ARE INTENDED FOR SURFACE SHIP PAINT ING, AND CLARIFIED THAT THE PPIS LISTED WILL REQUIRE TAILORING AND ADDITIONS IF USED FOR

SUBMARINE PAINTING OPERATIONS.

• PARAGRAPH 631-12.3 AND TABLE 631-12-1: REVISED TO REFLECT USE OF PPI’S VICE TGI’S, AND

UPDATED LIST OF PPI’S. ADDED WEB PAGE LINK.

• PARAGRAPH 631-12.5: CHANGE TO REFER TO NAVSEA STD. ITEM 009-32 AND HTTP://

WWW.NSTCENTER.COM/NAVYRESOURCES.ASPX FOR THE QA INSPECTION FORMS.

REVISION RECORD-12

TABLE OF CONTENTS

Chapter/Paragraph Page

631 PRESERVATION OF SHIPS IN SERVICE GENERAL . . . . . . . . . . . . . . 1-1

SECTION 1 GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

631-1.1 INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 631-1.1.1 GENERAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 631-1.1.2 ORGANIZATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

631-1.2 REFERENCE DOCUMENTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

631-1.3 GENERAL PAINTING REQUIREMENTS. . . . . . . . . . . . . . . . . . . . . . . . 1-2 631-1.3.1 GENERAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 631-1.3.2 DEFINITIONS OF SCOPE OF PRESERVATION. . . . . . . . . . . . . . . . 1-2

631-1.3.2.1 631-1.3.2.2 631-1.3.2.3 631-1.3.2.4 631-1.3.2.5 631-1.3.2.6 631-1.3.2.7

Full Preservation. . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Partial Preservation. . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 Spot Repair. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 Touchup For Surface Ships. . . . . . . . . . . . . . . . . . . . . . 1-3 Touchup For Submarines. . . . . . . . . . . . . . . . . . . . . . . 1-3 Disturbed Areas. . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 Cosmetic Painting. . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

631-1.3.3 MANDATORY COATING REPLACEMENT. . . . . . . . . . . . . . . . . . 1-4

631-1.3.4 CONDITION-BASED COATING ASSESSMENT REQUIREMENTS. . . . 1-4

631-1.3.4.1 Condition-Based Inspection Periodicities For Critical Coated Areas (Except Tanks and Voids). . . . . . . . . . . . . . . . . 1-4

631-1.3.4.2 Submarine Unrestricted Operation Maintenance Requirement Cards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

631-1.3.5 TANK AND VOID COATING INSPECTIONS. . . . . . . . . . . . . . . . . 1-5

631-1.3.5.1 Tanks That Can Only Be Coated In Drydock. . . . . . . . . . . . 1-5 631-1.3.5.2 Difficult To Access Tanks. . . . . . . . . . . . . . . . . . . . . . 1-5 631-1.3.5.3 Tank and Void Inspection Periodicities. . . . . . . . . . . . . . . 1-5

631-1.3.6 COATING REPAIR DECISIONS. . . . . . . . . . . . . . . . . . . . . . . . . 1-6 631-1.3.6.1 Tank and Void Coating Replacement and Repair Protocol. . . . . 1-6

631-1.3.7 PERFORMANCE OF CONTRACTED PRESERVATION WORK ON

SURFACE SHIPS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

631-1.3.8 USE OF ASTM F718 DATA SHEETS. . . . . . . . . . . . . . . . . . . . . . 1-6

631-1.3.9 NAVSEA DIRECTIVE FOR CHANGING PAINTING PRACTICES. . . . . 1-6

631-1.3.10 SPECIFICATION OF PAINT COLORS. . . . . . . . . . . . . . . . . . . . . 1-6

631-1.4 COATING SELECTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

631-1.5 NAVSEA COGNIZANT TECHNICAL AUTHORITY. . . . . . . . . . . . . . . . . . 1-7

631-1.6 DEPARTMENT OF DEFENSE CORROSION PREVENTION AND CONTROL

PROGRAM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

631-1.6.1 ESTABLISHMENT OF POLICY. . . . . . . . . . . . . . . . . . . . . . . . . 1-7 i

TABLE OF CONTENTS - Continued

Chapter/Paragraph Page

631-1.6.2 CORROSION PREVENTION AND CONTROL PLANNING

GUIDEBOOK. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

SECTION 2 SAFETY INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

631-2.1 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

631-2.1.1.4 SUPERVISORY RESPONSIBILITIES. . . . . . . . . . . . . . . 2-1

631-2.2 GENERAL HAZARDS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3 631-2.2.1

631-2.2.2

631-2.2.3 631-2.2.4 631-2.2.5

GENERAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3 631-2.2.1.1 Paint and Solvent Materials. . . . . . . . . . . . . . . . . . . . . 2-3 631-2.2.1.2 Surface Preparation Materials and Processes. . . . . . . . . . . . 2-3 631-2.2.1.3 Equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3 631-2.2.1.4 Work Environment. . . . . . . . . . . . . . . . . . . . . . . . . . 2-3 631-2.2.1.5 Ventilation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4 631-2.2.1.6 Painting Crew Training. . . . . . . . . . . . . . . . . . . . . . . . 2-4 631-2.2.1.7 Degree of Hazard. . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

RESPIRATORY PROTECTION. . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

631-2.2.2.1 Respirator Care. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

EYE PROTECTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

PROTECTIVE CLOTHING. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

OTHER PRECAUTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

631-2.2.5.1 Buddy System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6 631-2.2.5.2 Inspection Safety Precautions. . . . . . . . . . . . . . . . . . . . 2-6

631-2.3 GENERAL PAINT/SOLVENT INFORMATION FOR FIRE/EXPLOSION. . . . . . 2-6

631-2.3.1 FIRE PREVENTION PRECAUTIONS. . . . . . . . . . . . . . . . . . . . . . 2-6

631-2.3.1.1 Electrical Equipment. . . . . . . . . . . . . . . . . . . . . . . . . 2-6 631-2.3.1.2 Firefighting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

631-2.3.2 PAINT AND SOLVENT FLASHPOINTS. . . . . . . . . . . . . . . . . . . . 2-6 631-2.3.2.1 631-2.3.2.2 631-2.3.2.3 631-2.3.2.4 631-2.3.2.5 631-2.3.2.6

Low Flashpoint. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7 Paint and Solvent Flashpoint Listing. . . . . . . . . . . . . . . . 2-7 Highly Flammable Paints. . . . . . . . . . . . . . . . . . . . . . . 2-7 Paint Flashpoints. . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7 Paint Thinner Flashpoints. . . . . . . . . . . . . . . . . . . . . . 2-7 Minimum Flashpoint Specifications. . . . . . . . . . . . . . . . . 2-7

631-2.4 PAINT AND SOLVENT HEALTH HAZARDS. . . . . . . . . . . . . . . . . . . . . . 2-7 631-2.4.1 631-2.4.2 631-2.4.3 631-2.4.4

PAINT COMPOSITION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

GENERAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

HAZARDOUS PAINT INGREDIENTS. . . . . . . . . . . . . . . . . . . . . 2-8

PAINT TYPES AND INGREDIENTS. . . . . . . . . . . . . . . . . . . . . . 2-9

631-2.4.4.1 631-2.4.4.2 631-2.4.4.3 631-2.4.4.4 631-2.4.4.5

Alkyd and Oil-Base Paints and Varnishes. . . . . . . . . . . . . . 2-9 Vinyl Paints. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9 Epoxy Paints and Hull Repair Compounds. . . . . . . . . . . . . 2-10 Water Based Paints. . . . . . . . . . . . . . . . . . . . . . . . . . 2-10 Coal Tar Epoxy Paints. . . . . . . . . . . . . . . . . . . . . . . . 2-10 ii

Chapter/Paragraph

631-2.4.4.6 631-2.4.4.7 631-2.4.4.8 631-2.4.4.9

631-2.4.4.10 631-2.4.4.11 631-2.4.4.12 631-2.4.4.13

631-2.4.4.14 631-2.4.4.15 631-2.4.4.16 631-2.4.4.17 631-2.4.4.18

631-2.4.4.19 631-2.4.4.20 631-2.4.4.21

Page

Organotin Materials. . . . . . . . . . . . . . . . . . . . . . . . . . 2-10 Non-Skid Deck Coverings. . . . . . . . . . . . . . . . . . . . . . 2-10 Polyurethane Coatings. . . . . . . . . . . . . . . . . . . . . . . . 2-10 N-Butyl Alcohol. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10 Cresol. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10 Methylene Chloride (Dichloromethane). . . . . . . . . . . . . . . 2-10 Ethylene Glycol Monobutyl Ether. . . . . . . . . . . . . . . . . . 2-10 Ethylene Glycol Monoethyl Ether and Ethylene Glycol

Monomethyl Ether. . . . . . . . . . . . . . . . . . . . . . . . . 2-10 Formic Acid. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11 Methyl Ethyl Ketone (MEK). . . . . . . . . . . . . . . . . . . . . 2-11 Methyl Isobutyl Ketone (MIBK). . . . . . . . . . . . . . . . . . . 2-11 Methyl Normal Butyl Ketone. . . . . . . . . . . . . . . . . . . . 2-11 Paint Thinner (Degreasing Solvent, Mineral Spirits, or Stoddard

Solvent). MIL-PRF-680, Type I or ASTM D235 Type I. . . . 2-11 Phenol. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11 Polyamides and Polyamines. . . . . . . . . . . . . . . . . . . . . 2-11 Super High-Flash Naphtha. . . . . . . . . . . . . . . . . . . . . . 2-11

631-2.4.5 PROHIBITED PAINT INGREDIENTS. . . . . . . . . . . . . . . . . . . . . . 2-11 631-2.4.5.1 Chromates. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11 631-2.4.5.2 Lead. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12 631-2.4.5.3 Cadmium. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12 631-2.4.5.4 Crystalline Silica. . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12

631.2.4.6 MEDICAL EVALUATION AND SURVEILLANCE. . . . . . . . . . . . . . 2-12

631-2.5 SURFACE PREPARATION/PAINT REMOVAL METHODS AND TOOLS. . . . . . 2-13

631-2.5.1 GENERAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

631-2.5.2 SAFETY PRECAUTIONS AND REQUIREMENTS FOR ABRASIVE

BLASTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13 631-2.5.2.1 631-2.5.2.5 631-2.5.2.6 631-2.5.2.8 631-2.5.2.9

631-2.5.2.12

Preoperational Requirements. . . . . . . . . . . . . . . . . . . . . 2-13 Post-Operational Requirements. . . . . . . . . . . . . . . . . . . 2-14 Blasting Unit Operational and Maintenance Safety Precautions. . 2-14 Audio-Visual Operating Signals. . . . . . . . . . . . . . . . . . . 2-15 Protective Equipment. . . . . . . . . . . . . . . . . . . . . . . . . 2-15 Operating Safety Precautions. . . . . . . . . . . . . . . . . . . . . 2-15

631-2.5.3 PRECAUTIONS FOR WATERJETTING (HYDROBLASTING). . . . . . . 2-15

631-2.5.3.1 Visual Operating Signals. . . . . . . . . . . . . . . . . . . . . . . 2-16 631-2.5.3.2 Pump Operator. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16 631-2.5.3.3 Gun Operator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16 631-2.5.3.4 Equipment and Operating Precautions. . . . . . . . . . . . . . . . 2-16 631-2.5.3.5 Medical Alert Card. . . . . . . . . . . . . . . . . . . . . . . . . . 2-16

631-2.5.4 SAFETY PRECAUTIONS FOR ELECTRICALLY OPERATED POWER

TOOLS.

631-2.5.4.1 631-2.5.4.2 631-2.5.4.3 631-2.5.4.4

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16 Inspection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17 Grounds. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17 Fire Hazards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17 Cord Care. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17 iii

Chapter/Paragraph Page

631-2.5.4.5 Extension Cords. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17

631-2.5.5 SAFETY…