Permatex RTV Silicone, 81878

Permatex Ultra Copper is a high temperature RTV gasket maker, resisting temperatures up to 700 degrees F (371 degrees C). Ultra Copper is tested to exceed OEM specifications and is ideal for high temperature applications such as turbocharger applications and exhaust systems. For maximum performance, with the highest temperature resistance today up to 750 degrees F (399 degrees C) check out Permatexs Optimum Red.