J-B Weld HighHeat 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. HighHeat is rated at a strength of 4000 PSI and cures to a machine gray in color. It can withstand continuous heat exposure of 500F and intermittent heat exposure to 550 Deg. F.

Product Features:

• Hand mixable epoxy putty stick specifically formulated to bond and repair materials that will be exposed to high temperatures
• Great for exhaust manifolds, tail pipes, mufflers, engine blocks, machinery and other high temperature projects
• Sets in 1 hour at room temperature, functionally cures in 8 hours and withstands continuous heat of 450 Deg. F (500 Deg. F intermittent)
• Once cured, it forms a permanent bond and can be drilled, tapped, machined, ground and filed
• Cure Time: 8 Hours
• Cure Color: Dark Gray