Permatex Ultra Blue Multipurpose RTV Silicone Gasket Maker is a sensor-safe, low odor, noncorrosive gasket material with outstanding oil resistance and joint movement tolerance. Designed specially for high-torque and high vibration applications, like those common in import engines, this premium RTV gasket maker exceeds manufacturer performance requirements. Sensorsafe, low odor, and noncorrosive. Maximum vibration resistance, with outstanding resistance to oils, cooling and shop fluids.