J-B KwikWeld is a fast setting version of the original J-B WELD two-part epoxy cold weld system that provides strong, lasting repairs to metal and multiple other surface types. After mixing, it forms a permanent bond and can be shaped, tapped, filed, sanded and drilled after curing. J-B KwikWeld has a 1:1 mixing ratio, sets in 6 mins and is fully cured in 4 to 6 hrs. J-B KwikWeld cures to a dark gray color, is rated at a tensile strength of 2424 psi and will withstand temperatures up to 300 deg F.