50176 Kwikweld is a Fast-Setting Version of the Original J-B Weld 2 Part Epoxy Cold Weld System that Provides Strong, Lasting Repairs to Metal and Multiple Surfaces. Mixed at a Ratio of 1:1, it forms a Permanent Bond, and can be Shaped, Tapped, Filled, Sanded and Drilled after Curing. After Mixing, Kwikweld sets in 6 Minutes and is Fully Cured in 4 to 6 Hours with a Dark Grey Colour. After Curing, Kwikweld is Rated at a Tensile Strength of 3127 PSI and will withstand Temperatures of up to 300 F (149 C)