FP-96 English Version - Eastern Federal Lands Highway Division

Section 563SubstrateTable 563-3Coating Systems for Other StructuresPaint CoatingsPrimer Intermediate Finish TotalSmooth WoodRough LumberConcreteMasonry BlockAluminumOther MetalsExterior woodprimer (1)2-3 mils dryExterior latex oralkyd (1)1-2 mils dryExterior latex oralkyd1-2 mils dryExterior latex oralkyd1-2 mils dryExterior latexor alkyd1-2 mils dryExterior latexor alkyd1-2 mils dryEpoxy single coat 3-4 mils dry. For gloss finish, finishwith aliphatic-polyurethane (2 mils dry).Masonry blockfiller2-3 mils dryMetal primer1-2 mils dryMetal primer (2)1-2 mils dryExterior latex oralkyd1-2 mils dryExterior latex oralkyd1-2 mils dryExterior latex oralkyd1-2 mils dryExterior latexor alkyd1-2 mils dryExterior latexor alkyd1-2 mils dryExterior latexor alkyd1-2 mils dry5-7 mils dry3-6 mils dry3-6 mils dry5-7 mils dry4-6 mils dry4-6 mils dry(1) For untreated wood, thin the primer with up to 0.1 gallon of turpentine and 0.1 gallon oflinseed oil per gallon of paint.(2) For galvanized surfaces, use an epoxy primer (1-2 mils dry thickness) or a vinyl wash primer(1 mil dry thickness).563.08 Painting Galvanized Surfaces. Remove all oil, grease, or othercontaminants on the surface by washing with a mineral spirit solvent accordingto SSPC-SP 1.Apply the coating system shown in Table 563-3 for other metals.563.09 Painting Timber Structures. Dry timber to a moisture content of 20percent or less. On previously painted timber, remove all cracked or peeledpaint, loose chalky paint, dirt, and other foreign material by wire brushing,scraping, or other approved methods. On timber treated with creosote oroilborne pentachlorophenol preservative, wash and brush away visible saltcrystals on the wood surface and allow to dry. Remove all dust or other foreignmaterial from the surface to be painted.499