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. KwikWeld has a 1:1 mixing ratio, sets in 6 minutes and is fully cured in 4-6 hours, cures to a dark grey color, is rated at a tensile strength of 3127 PSI and will withstand temperatures up to 300ºF. Use On - Automotive, Brick, Concrete, Fiberglass, Metal, Marine/Boats and more. Strength - 3127 PSI Set Time - 6 Minutes Cure Time - 4-6 Hours Cure Color - Dark Gray