PERMATEX
The Permatex Red RTV High Temp Gasket Maker is a premium, high-performance silicone formula designed for extreme temperature applications. This versatile product forms a tough, flexible, and long-lasting seal that resists cracking, shrinking, and vibration — making it ideal for demanding automotive, industrial, and mechanical environments.
Engineered to withstand temperatures up to 650°F (343°C) intermittently, it is perfect for high-heat components such as exhaust manifolds, valve covers, timing covers, water pumps, thermostat housings, and more. The advanced RTV (Room Temperature Vulcanizing) silicone ensures superior adhesion and sealing properties on metal, glass, and ceramic surfaces.
Packaged in an easy-squeeze 3 oz (85g) tube, the Permatex Red RTV Gasket Maker is convenient to apply and eliminates the need for pre-cut gaskets, reducing downtime and simplifying maintenance work.
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Key Features
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High-temperature resistance: Up to 650°F (343°C)
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Forms a strong, flexible, and durable seal
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Resistant to vibration, oil, coolant, and high pressure
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Ideal for high-temperature automotive and industrial applications
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Replaces most pre-formed gaskets
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Easy-to-use tube with applicator tip
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OEM certified and trusted globally