Worlds Strongest Bond

JB High Heat Putty


Temperature Resistant Epoxy Putty

Strength 800 PSI at Room Temp.
600 PSI at 400ºF
Set Time 1 Hour
Functional Cure 8 Hours
Dries Machine Grey

Great For:

  • Exhaust Manifolds
  • Tail Pipes
  • Mufflers
  • Engine Blocks
  • Duct Work
  • Machinery
  • High Temperature Projects

Product Description

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


  1.  Cut: Remove required amount of putty.
  2.  Mix: Thoroughly knead putty with fingers to a uniform colour.
  3.  Apply: Press putty firmly to the surface to be repaired.

* For best results use a detergent or degreaser to first clean the surface, then roughen surface with file or coarse sandpaper to provide the best repair.