LOCTITE 5699 Grey Flange Sealant, High Performance RTV Silicone Gasket Maker is a one part RTV silicone that remains flexible and withstands high vibration. Designed for high-torque applications. Withstands temperatures from -75°F to 625°F (-59°C to 329°C) intermittent. Outstanding oil and shop fluid resistance. Non-corrosive, low odor.