Section J-13E SFLC Std Specifications 6310 Requirements for Preservation of Ship Structures

SFLC STANDARD SPECIFICATION 6310

REQUIREMENTS FOR PRESERVATION OF SHIP STRUCTURES

1. SCOPE

1.1 Intent. This Standard Specification describes requirements applicable to preservation of Coast Guard cutter structures.
1.2 Appendices.

PROCESS STANDARD

Cutter & Boat Exterior Painting Systems
Cutter & Boat Interior Painting Systems
Cutter & Boat Authorized Coatings
New Construction Requirements
Coatings QA Forms (QA-1 thru QA-5)

APPENDIX

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B
C
D
E

1.3 Acronyms and term definitions.
• Critical-coated surfaces: Areas where premature failure of the coating system cannot be detected by routine observation due to inaccessibility, or areas where restoration of a failed system cannot be undertaken without laying up the ship at an industrial facility or a forward repair site; or areas where restoration of a failed system may subject a vessel to a loss of operational days, in addition to resulting in avoidable repair costs. The absence of the critical- coated surfaces designation in the individual work items does NOT downgrade, diminish, or relax the critical-coated surface protocols for established list defined within SFLC Std Spec 0000. The list of “Critical- coated surfaces” will always be treated as critical-coated surfaces as set forth in the applicable sections of this standard. Individual work items may place the critical- coated surface protocols on additional surfaces. • Partial Preservation: Surface preparation and coating application accomplished for up to 33% of a ship component (e.g., tank, u/w body, freeboard, main deck, grid cooler, crane, davit, etc...). This may also include an additional finish coat over 100% of the component - for aesthetic purpose. In-process QC measures are applicable for partial preservation of surfaces defined as "critical-coated surfaces" (see paragraph 3.2.4.2 (In-process QC measures for “critical-coated surfaces”) of SFLC Std Spec 0000). • Touch-up: Preservation operations on cumulative surface areas less than 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. Except for potable water, reserve feedwater, or freshwater drain collecting tanks, the documentation requirements for criticalcoated surfaces are waived for these touch-up areas, and the requirements for cleanliness, surface preparation, surface profile, conductivity/chloride measurement, and coating inspection consisting of dry