J-B Weld HighHeat Epoxy Putty

J-B Weld HighHeat epoxy putty is a hand mixable 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. HighHeat is rated at a tensile strength of 800 psi, cures to a machine grey in color, and is able to withstand continuous heat exposure of 450 degrees F and intermittent heat exposure to 500 degrees F. J-B Weld HighHeat epoxy putty is ideal for exhaust manifolds, tailpipes, mufflers, engine blocks, duct work, and machinery. Show Less