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Permatex Copper Spray-A-Gasket Permatex Copper Spray-A-Gasket is a fast-drying metallic copper sealant engineered to protect gaskets and improve heat transfer in automotive and industrial applications. Heat dissipation: Metallic copper formula helps dissipate heat and prevents gasket burnout under high-temperature conditions. Instant sealing: Fills minor surface irregularities and creates a reliable, instant seal that reduces leaks. Wide temperature range: Effective from −50°F to 500°F , making it suitable for extreme environments. Chemical resistance: Resists gasoline and a wide range of automotive fluids for long-lasting performance. Easy application: Sprayable formula for quick, even coverage on flanges, gaskets, and mating surfaces. Ideal for head gaskets, exhaust systems, manifolds, and other high-heat areas where enhanced sealing and heat transfer are required. Follow product label instructions for surface preparation and safe use.
Fast drying, metallic copper sealant helps dissipate heat, prevents gasket burnout, and improves heat transfer
Fills minor surface irregularities, seals instantly
Temperature range –50° F to 500° F, resists all types of automotive fluids, especially gasoline