Permatex 81422 Sensor-Safe High-Temperature RTV Silicone Sealant, 3 oz Tube

Permatex 81422 Sensor-Safe High-Temperature RTV Silicone Sealant is designed for dependable gasket-making and sealing applications exposed to elevated temperatures. This one-component silicone formula cures at room temperature to create a flexible, durable seal that helps resist cracking, shrinking, and hardening over time. The sensor-safe formulation is suitable for applications where contact with oxygen sensors and other sensitive automotive components is a concern.
Ideal for automotive repair, maintenance, and assembly work, this high-temperature RTV sealant adheres to a variety of clean, dry surfaces, including metal, glass, and many common automotive materials. It can be used to form or replace gaskets on components such as valve covers, timing covers, water pumps, thermostat housings, and other assemblies requiring a reliable silicone seal. The 3 oz tube supports convenient application for shop, garage, and service-bay use.
Permatex 81422 provides a practical solution for sealing against moisture, oil, and common automotive fluids when applied according to the manufacturer's instructions. Its low-volatile formulation helps support clean, consistent results, while the cured seal remains flexible to accommodate normal vibration and thermal cycling. Prepare surfaces properly and allow the sealant to cure as directed before returning the assembly to service.

Features:

• Brand: Permatex

• Part Number: 81422

• Product Type: Sensor-safe high-temperature RTV silicone sealant

• Container Size: 3 oz tube

• Formula: One-component silicone that cures at room temperature

• Application: Forms or replaces gaskets in automotive sealing applications

• Performance: Resists cracking, shrinking, and hardening

• Compatibility: Suitable for applications near oxygen sensors and other sensitive components

• Use: Helps seal against moisture, oil, and common automotive fluids

• Shipping Classification: Not air restricted and not limited to truck freight