JB Weld 8298U HighHeat 500 Degree Epoxy Putty Stick 4 oz

JB Weld HighHeat is a hand-mixable epoxy putty stick specifically engineered to bond and repair materials exposed to extreme temperatures in automotive and industrial applications. This high-performance formula cures to a tough, hard bond with minimal shrinkage, making it ideal for permanent repairs on exhaust systems, engine components, and machinery.

Key Features:

• Withstands continuous heat exposure up to 500°F and intermittent temperatures to 550°F
• Sets in 1 hour at room temperature and fully cures in 8 hours
• High-strength bond rated at 4000 PSI
• Can be drilled, tapped, machined, ground, filed, and painted after curing
• Cures to a machine gray color for a professional finish
• No mixing tools required - simply knead by hand

Perfect for repairing exhaust manifolds, tailpipes, mufflers, engine blocks, and other high-temperature automotive and industrial components. This 4 oz putty stick provides superior performance compared to conventional epoxy putties in extreme heat environments.