Create leak-proof and temperature-resistant gaskets with the Ultra Grey Gasket Maker from Permatex. The rigid, RTV silicone gasket maker is designed for high torque applications like you find in many import engines. It is noncorrosive and provides comprehensive seals on a number of components. It is resistant to vibration, oils, and lubricating liquids and can be used in temperatures ranging from -65F to 500F. It is suggested for a variety of applications including valve covers, intake manifold end seals, water pumps and more.