Red RTV Silicone Gasket Maker

Product Information

High-Temp Sealant Built for Extreme Heat and Tough Jobs – Red RTV Silicone Gasket Maker is specially formulated to withstand continuous temperatures up to 650°F (343°C), making it ideal for high-heat automotive applications like intake and exhaust manifolds, headers, and thermostat housings. It forms a durable, leak-proof seal that won’t crack, shrink, or foul oxygen sensors, trusted by pros for demanding engine work.


Red RTV Silicone Gasket Maker

Resists Temperatures Up to 650°F (343°C)
Performs in extreme heat conditions, perfect for high-performance engines, turbo systems, and heavy-duty machinery.

Ideally Suited for Intake and Exhaust Manifolds
Use confidently on headers, valve covers, thermostat housings, and other high-temp sealing points.

Leak-Proof Seal Every Time
Forms a strong, oil- and fluid-resistant barrier that prevents leaks under pressure and vibration.

Will Not Foul Oxygen Sensors
Safe for modern engine systems, won’t interfere with sensor function or emissions controls.

Fast Curing & Flexible
Cures quickly and stays pliable for long-lasting performance under thermal cycling and vibration.

Bonds to Most Metals and Engine Components
Adheres securely to aluminum, steel, iron, and more, great for automotive, marine, and industrial repairs.


Ideal For:

  • Exhaust manifolds and headers

  • Intake manifolds and thermostat housings

  • High-temperature engine components

  • Performance builds and racing applications

  • Mechanics, shops, and DIY engine work


Why Choose Red RTV Silicone Gasket Maker?

Built for the heat and made to last, Red RTV is the go-to gasket maker when high temperatures and precision sealing matter most. With sensor-safe performance and industrial strength, it’s a must-have in any engine repair kit.

Order Now and seal with confidence, Red RTV delivers heat resistance and durability where it counts.

Buy Now

Part No.SizePcs/Case
11-AB3 OZ./85g12/CASE
11-AB-42*1.5 OZ./42.5g12/CASE
* Currently not available for mixed orders from warehouse. Ships directly from factory.