Permatex Cold Weld Bonding Compound is a 15 minute, two-part adhesive and filler system that eliminates the need for welding or brazing. It repairs, fills and bonds to iron, steel, brass, bronze, aluminum and copper. Once cured, it can be drilled, tapped, threaded, filed, sanded and painted. Resists most automotive, shop and cleaning fluids. Withstands temperatures to 300°F intermittent and holds to over 3,000 PSI shear strength on steel.