Permatex 81409 Hi-Temp Red RTV Silicone Sealant, 11 oz Cartridge

Permatex 81409 Hi-Temp Red RTV Silicone Sealant is designed for demanding automotive and mechanical sealing applications that require reliable performance at elevated temperatures. This single-component silicone sealant cures to form a flexible, durable gasket that helps resist cracking, shrinking, and vibration. Its red RTV formulation is well suited for sealing mating surfaces and joints where a high-temperature silicone is needed.
The 11 oz cartridge format is compatible with standard caulking guns for controlled, consistent application. Permatex Hi-Temp RTV Silicone can be used on a variety of metal and component surfaces when properly prepared, helping create a dependable seal against leaks caused by heat, moisture, and environmental exposure. Always clean and dry surfaces before application and follow the vehicle or equipment manufacturer’s service recommendations.
Permatex Part Number 81409 is a practical choice for professional technicians, maintenance departments, and do-it-yourself repairs involving high-temperature sealing needs. The product is not air restricted and does not require truck freight, supporting convenient handling for automotive service, equipment repair, and general maintenance applications. Use this red silicone sealant where flexibility, adhesion, and heat resistance are essential to long-lasting gasket performance.

Features:

• Brand: Permatex

• Part Number: 81409

• Sealant Type: High-temperature red RTV silicone

• Package Format: 11 oz cartridge

• Application: Creates flexible seals for automotive, mechanical, and maintenance applications

• Performance: Helps resist cracking, shrinking, vibration, moisture, and elevated temperatures

• Application Method: Designed for use with a standard caulking gun

• Shipping Classification: Not air restricted and not truck freight only