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J-B Weld HighHeat Epoxy Putty

8297 HighHeat.jpg


800 PSi at Room Temp
600 PSi at 400ºF

Set Time

1 Hour

Functional Cure

8 Hours

Cure Colour

Machine Grey

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 tensile strength of 800 PSI and cures to a machine grey in color. It is able to withstand continuous heat exposure of 400ºF and intermittent heat exposure to 550ºF

Great For:

  • Exhaust Manifolds

  • Tail Pipes

  • Mufflers

  • Engine Blocks

  • Duct Work

  • Machinery

  • High Temp Projects

Made in the USA US flag



Remove required amount of putty


Thoroughly knead putty with fingers to a uniform colour


Press putty firmly to the surface to be repaired

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