White RTV Silicone Gasket Maker is developed for hot running car's engine. High Temp White 100% RTV Silicone withstands temperatures form -80'F to 625°F (-62°C to +329°C). Pressure resistance: 5000 psi makes it ideal make any size of shape gasket immediately, and makes it resist cracking, shrinking and migrating caused by thermal cycling. Ideal for timing covers, valve covers, oil pans, intake manifolds, exhaust manifolds, water pumps and etc.