High Temperature RTV Silicone Sealant – Red

High Temperature RTV Silicone Sealant in vibrant red delivers a professional-grade, 100% silicone formula that cures to a durable, flexible gasket. Engineered for extreme-heat applications, this sealant bonds tightly to metal, glass, ceramics, and more, creating a waterproof barrier that withstands thermal cycling without cracking or shrinking. Ideal for engine compartments, exhaust systems, ovens, boilers, HVAC equipment and other high-temperature installations both indoors and out.

Whether you’re sealing, caulking, or filling gaps, this RTV silicone provides long-lasting performance under harsh conditions. Its smooth consistency ensures easy tooling and a neat finish, while its red color offers high visibility in maintenance and repair work.

Key Features

• 100% RTV silicone—professional-grade formulation
• Designed for high-temperature environments
• Permanent, flexible, waterproof seal
• Adheres to metal, glass, porcelain, fiberglass, ceramic, marble and more
• Easy to tool—smooth paste consistency
• Suitable for indoor and outdoor use