Permatex 81630 Ultra Red High Temperature RTV Silicone Gasket Maker 3 oz

Permatex Ultra Red High Temperature Gasket Maker is a professional-grade RTV silicone sealant designed for high-heat automotive applications. This premium gasket maker withstands extreme temperatures up to 650°F (343°C), making it ideal for exhaust manifolds, valve covers, oil pans, and other critical engine components.

Key Features:

• Maximum temperature resistance up to 650°F (343°C) continuous exposure
• Low-odor formula for improved working conditions
• Sensor-safe and non-corrosive formulation won't damage oxygen sensors
• Excellent resistance to thermal cycling and vibration
• Forms a flexible, durable gasket that resists automotive fluids including oil, coolant, and transmission fluid
• Can replace traditional pre-cut gaskets or be used for gasket dressing
• Red color for easy identification and inspection

This 3-ounce tube provides reliable sealing for demanding high-temperature applications. The RTV (Room Temperature Vulcanizing) formula cures on exposure to moisture in the air, creating a tough, resilient seal that maintains integrity under extreme conditions. Suitable for use on aluminum, steel, cast iron, and other metal surfaces.