Made in the USA. The Original J-B Weld two-part epoxy cold weld system. Great for household repairs, automotive projects, plumbing and marine applications, crafts and more. Sets in 4-6 hours at room temperature and cures dark grey in 15-24 hours and rated at a tensile strength of 3960 PSI. Once cured it forms a permanent bond and can be shaped, tapped, filed, sanded and drilled and will withstand temperatures of up to 550 degrees Fahrenheit. Waterproof, petroleum, chemical, and acid resistant when fully cured.