Permatex Ultra Grey RTV Silicone Gasket Maker

Permatex Ultra Grey RTV Silicone Gasket Maker is engineered for high-torque, high-vibration applications, making it ideal for use in modern, heavy-duty engines. This sensor-safe, low-odor, non-corrosive formula delivers exceptional resistance to oil and shop fluids while meeting the performance specs of OEM silicone gaskets—ensuring compatibility with dealership warranty requirements.

Designed for professional-grade performance, Ultra Grey forms strong, flexible, leak-proof gaskets that resist thermal cycling and mechanical stress.

Key Features:

• Formulated for high-torque and high-vibration environments

• Sensor-safe, non-corrosive, and low odor – safe for modern engine components

• OEM specified – meets OE silicone gasket performance standards

• Excellent adhesion and flexibility for lasting seal integrity

• Temperature resistant and fluid resistant (oil, coolant, etc.)

• Packaged in a 9.5 oz cartridge for high-volume or shop use

Ideal Applications:

• Valve covers

• Water pumps

• Thermostat housings

• Intake manifold end seals

• Timing gear covers

• Transmission pans