permatex ultra copper is a high temperature rtv gasket maker. each

Permatex Ultra Copper is a high temperature RTV gasket maker, resisting temperatures up to 700°F (371°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°F (399°C) check out Permatex’s Optimum Red. FEATURES High-Temp Gasket Maker For high operating temperatures, turbocharger applications and exhaust systems Sensor-safe, low odor, non-corrosive Temperature range -65°F to 700°F (-54°C to 371°C) intermittent Resists auto and shop fluids and vibration.