Devcon® Aluminum Putty, 1 lb Container, Epoxy Base, Composition: Aluminum flake, Bisphenol A diglycidyl ether resin, Calcium Carbonate, Paste Form, 70 sq-in/lb at 1/4 in Coverage, 2 to 4 hr Drying, 16 hr Curing, Aluminum, Mild Ammonia Odor/Scent, 120 deg Wet/250 deg F Dry, 0.98 Specific Gravity, >200 deg F Flash Point, 8 pH, Applicable Materials: Aluminum, Concrete and Many Other Metals, 2600 psi Tensile Strength