Class A: 1/16 in, 1/8 in, 3/16 in, 1/4 in, 3/8 in, 1/2 in, 1 in; Class B: 3/4 in; ASTM D2843 Smoke Density - Pass Less than 75; ASTM D635 Flame Spread - Pass CC1; ASTM D1929 Self-Ignition Temperature - Pass Greater than 650°F; Materials complying with Section 803.1.1.1 (NFPA 286) shall be considered to also comply with the requirements of ASTM E84 Class A
Rinse the sheets with lukewarm water. (Be careful not to expose edges of organic or fabric interlayers to water) Remove dust and dirt from Varia with a soft cloth or sponge and a solution of mild soap and/or liquid detergent in water. A 50:50 solution of isopropyl alcohol and water also works well. Rinse thoroughly with lukewarm water. Always use a soft, damp cloth to blot dry. Rubbing with a dry cloth can scratch the material and create a static charge. Never use scrapers or squeegees on Varia. Also avoid scouring compounds, gasoline, benzene, acetone, carbon tetrachloride, certain deicing fluids, lacquer thinner or other strong solvents
