Devcon® FasMetal™ 10 HVAC Repair Kit, 2-Component, Tube Container, 6.5 oz Container, Epoxy Base, Composition: Part A: Bisphenol A Diglycidyl Ether Resin , Aluminum Flake, Calcium Carbonate, Synthetic Amorphous Silica, Crystalline Silica; Part B: Barium Sulfate, Polyamide of Tall-Oil Fatty Acid Dimers and Tetraethylenepentamine, Tris-2,4,6-(Dimethylaminomethyl)Phenol, Dimer/TOFA, Reaction Products with TETA, Calcium Carbonate, Kaolin, Triethylenetetramine, Synthetic Amorphous Silica, Crystalline Silica, Tetraethylenepentamine, 16 hr Curing, Gray/White, 250 deg F, 1:1 Mixing Ratio, For Use On: Aluminum and Other Metal, Ceramic, Wood, Concrete and Glass