SL-314 650°F Red RTV Silicone is developed for the hot running engines found in most domestic and foreign cars. It withstands temperatures from -100 ˚F to + 650 ˚F (-73 ˚C to +343 ˚C) intermittent. Pressure resistance: 5000psi. Makes any sized or shaped gasket immediately. Ideal for timing covers, valve covers, oil pans, intake manifolds, exhaust manifolds and water pumps.