The Permatex Copper Spray-A-Gasket is a hi-temp sealant for gaskets. It is designed to help dissipate heat, improve heat transfer and prevent gasket burnout. Permatex Copper Spray-A-Gasket is ideal for sealing gaskets on exhaust manifolds, cylinder heads and turbocharger flanges as well as other high temperature applications, according to the company. It is effective up to 500 degrees F and resists all types of automotive fluids, especially gasoline. Copper Spray-A-Gasket also helps fill minor irregularities in gaskets, seals non-absorbent surfaces and prevents seizing of base connections and threaded fittings.
