METRIC
A-A-1452C August 15, 2007
SUPERSEDING A-A-1452B February 23, 1996
COMMERCIAL ITEM DESCRIPTION
LACQUER (Spraying, Chemical Resistant)
The General Services Administration has authorized the use of this commercial item description in preference to Federal Specification TT- L-54C for all federal agencies.
1. SCOPE. This description covers a one part, high gloss, air drying lacquer for coating aluminum metal surfaces in service around storage batteries, gasoline and lube oil exposures.
2. SALIENT CHARACTERISTICS
2.1 Prohibited Materials. Shall not include chlorinated solvents, hydrolysable chlorine derivatives, lead, mercury, chromate, any carcinogen as defined in the Code of Federal Regulations (CFR), Part 29, Section 1910.1200 and Environmental Protection Agency (EPA) Class I or II ozone depleting substances. Maximum background lead content shall be 0.06% (600 parts per million), weight basis of dry film determined in accordance with ASTM D3335.
2.2. Specular Gloss. The minimum specular gloss shall be 70% at 60 degrees when tested in accordance with ASTM D523.
2.3. Volatile Organic Content (VOC). The maximum allowable VOC (less water and exempt solvents)
shall be 420 grams per liter, when tested in accordance with Environmental Protection Agency Method
24, described in 40 CFR Part 60.
2.4. Total Solids (weight basis). Black: 25% minimum. White: 30% minimum (test both in accordance with ASTM D2697).
2.5. Appearance. The lacquer shall spray to a smooth and uniform film which is free of surface defects.
2.6. Color. Color shall be as specified in the contract or purchase order in accordance with the Fed-Std-595 color number specified; determined visually in accordance with the standard practice in ASTM D1729.
2.7. Drying Time. The product shall dry to touch in less than 10 minutes, dry hard within 60 minutes and have no "aftertack" after 48 hours, when tested in accordance with ASTM D1640.
2.8. Knife Test. The product shall form a ribbon or curl, and not flake or powder, and shall show beveled edges at a cut made with a sharp, curved blade, utility knife.
2.9. Lifting. The lacquer shall not wrinkle or lift when exposed to drops of toluene covered with a watch glass for 5 minutes at 23 to 25° C.
2.10. Flexibility. At 0° C and 25° C, the cured product shall bend 270 degrees over a 3.1 - 3.2 mm (0.125 inch) mandrel without cracking or flaking when tested in accordance with ASTM D522.
Beneficial comments, recommendations, additions, deletions, clarifications, etc. and any data which may improve this document should be sent to: General Services Administration, Heartland Global Supply, GSA/FAS/QSDAAB, 1500 E. Bannister Rd., Kansas City, MO 64131
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