Check the listing for details. JB Weld 8297 High Heat Epoxy Putty Stick. Condition: New. Listed at 9.90 USD. J-B Weld 8297 HighHeat 500 Degree Epoxy Putty Stick - 2 oz. , Grey About this item:3 times stronger at high temperaturesWithstands continuous heat up to 450 degrees Fahrenheit, and intermittent heat up to 500 degreesStrength of 800 PSI at room temperature and 600 PSI at 400 degrees FahrenheitPerfect for tail pipes, mufflers, machinery, engine blocks, and exhaust manifoldsSpecial Shipping Information: This item cannot be returned and has additional shipping restrictionsDescription: J-B Weld High Heat Epoxy Putty High Heat is a hand mixable epoxy putty stick specifically formulated to bond and repair materials that will be exposed to high temperatures in automotive and industrial maintenance applications. It cures to a tough, hard bond with little to no shrinkage. This industrial-strength product outperforms conventional epoxy putties at high temperatures and sets in 1 hour at room temperature. After 8 hours, it can be drilled, tapped, machined, ground, filed and painted. High Heat is rated at a tensile strength of 800 PSI and cures to a machine grey in color. It is able to withstand continuous heat exposure of 400 degrees F and intermittent heat exposure to 500 degrees F. Use on: Automotive Metal And more Instructions 1. Cut: Remove required amount of putty. 2. Mix: Thoroughly knead putty with fingers to a uniform color. 3. Apply: Press putty firmly to the surface to be repaired. J-B Weld is proudly made in the USA