Permatex High Temperature Red RTV Silicone Gasket Maker delivers reliable sealing performance for demanding automotive and industrial applications. This 3oz tube of premium red silicone forms a durable, flexible gasket that withstands extreme temperatures up to 500°F, making it ideal for engine blocks, oil pans, and transmission housings. The non-corrosive formula cures to create an oil-resistant seal that prevents leaks while accommodating thermal expansion and vibration. Fast-curing and easy to apply, this professional-grade sealant is trusted by technicians for critical engine work and restoration projects.