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Permatex® 500° High Heat Epoxy


Features and Benefits:

Permatex’s 500® High Heat Epoxy is the first and only high temperature liquid syringe epoxy! Ideal for surface repairs with high temperatures such as under-hood automotive & home repair. This high temperature epoxy withstands 2X higher temperatures compared to standard epoxies that traditionally breakdown at 250⁰F. Ideal for under-hood repairs where temperatures can range up at 400⁰F on a hot summer day.

  • Seal against many liquids, gasses and common automotive fluids
  • Ideal for under-hood automotive applications
  • Eliminates need to weld or braze
  • Sets in 10 minutes/ Cures in 2 hours
  • Bonds to metals, hard plastics, ceramics, glass rubber and more!
  • PSI Strength: 2,500

Suggested Applications: Furniture, doors, windows, trim/moulding, decks & more!


  • For best results: Roughen, remove any grease and oil, clean and dry surfaces to be joined or repaired.
  • Remove plastic mixing paddle from center of black plunger. Turn nozzle end up and pull plunger back slightly (1/8″). Allow air bubbles to rise to top. Snap off and save storage cap.
  • Push plunger evenly to dispense equal amounts of hardener and resin onto a discardable surface such as a piece of cardboard or the plastic container on the front of this package. Pull back plunger to stop flow.

MIX THOROUGHLY with paddle provided. Epoxy has a working time of 10 minutes.
Apply to surfaces to be joined or repaired. Epoxy will fixture in 2 hours and fully cure in 24 hours. Wipe nozzle clean. Replace cap for storage.
NOTE: Will not bond to polyethylene or polypropylene plastics.


View Permatex® 500° High Heat Epoxy SDS Part One Here

View Permatex® 500° High Heat Epoxy SDS Part Two Here

View Permatex® 500° High Heat Epoxy Product Information Here