HighHeat™ is a hand-mixable epoxy putty specially designed for bonding and repairing materials that will be exposed to high temperatures in automotive and industrial maintenance applications. It creates a tough 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, machined, sanded, filed, and painted. HighHeat™ is rated with a tensile strength of 4000 PSI and cures to a gray color. It is capable of withstanding continuous heat exposure of 232 degrees Celsius and intermittent heat exposure up to 260 degrees Celsius.