2.2.2
Aluminum Surfaces
Before finishes are applied, remove roll marks, scratches, rolled-in
scratches, kinks, stains, pits, orange peel, die marks, structural streaks,
and other defects which will affect uniform appearance of finished surfaces.
2.3
COATINGS AND FINISHES
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NOTE: The content of volatile organic compounds
(VOC), and marking, shall be in compliance with air
quality regulations for the type of application and
jurisdiction where used.
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2.3.1
Galvanizing
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NOTE: Specify galvanizing for items installed in
exterior exposures subject to salt spray or
corrosive fumes and interior areas subject to
continual wetting or high humidity.
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Hot-dip galvanize items specified to be zinc-coated, after fabrication
where practicable. Galvanizing shall conform to ASTM A 123/A 123M, ASTM A
153/A 153M or ASTM A 653/A 653M, as applicable. Tailings and sharp
protrusions formed as a result of the hot-dip process shall be removed and
exposed edges burnished. Galvanize anchor bolts, grating fasteners,
washers and parts or devices necessary for proper installation, unless
otherwise indicated.
2.3.2
Polyester Powder
Powder-coated surfaces shall receive electrostatic zinc coating prior to
painting. Powder coating shall be electrostatically applied and oven
cured. Polyester powder coating shall be resistant to ultraviolet (UV)
light.
2.3.3
Polyvinyl-Chloride (PVC)
PVC coating shall be primed with a clear acrylic thermosetting solution.
The primed parts shall be preheated prior to dipping. The liquid polyvinyl
chloride shall be ultraviolet (UV) stabilized and mold-resistant. The
coated parts shall be cured. The coating shall be a minimum 2 mm 2/25
inches thick plus or minus 0.5 mm 0.020 inches and shall have an 85
durometer hardness with a slip-resistant finish.
2.3.4
Finish
Finish shall be as specified by the manufacturer or as indicated. Exposed
surfaces and edges shall be rounded, polished, or sanded. Finish shall be
non-toxic, non-glare, and resistant to corrosion. Exposed surfaces shall
be smooth and splinter-free exposed surfaces.
2.3.4.1
Wood Sealants
Exposed wood surfaces shall have, as a minimum, two shop coats of paint,
varnish, sealer, or other approved preservative. Sealants shall seal all
SECTION 02870
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