Gasketseal 300ml (Box of 12) Red

High-Temperature RTV Silicone Sealant (Red) 

Ensure reliable, durable seals even under extreme heat with Gasketseal, a high-temperature acetoxy silicone formulated specifically for engines, motors, pumps, and heating units. It performs in continuous temperatures from –60 °C up to 280 °C, making it ideal for demanding applications.

Key Benefits & Features

• Extreme temperature resistance: Performs from –60 °C to 280 °C.

• Flexible and durable: Cures to a permanently elastic seal, resisting vibration and cracking.

• Replaces traditional gaskets: Forms a custom gasket in-situ, eliminating the need for fibre, paper, rubber, cork, or felt gaskets.

• Excellent chemical resistance: Withstands fuels, oils, and greases in aggressive environments.

• Weatherproof and long-lasting: Built to resist environmental stress for extended service life.

Typical Uses & Applications

Ideal for:

• Sealing flanges, covers, housings, and joints in engines, pumps, and motors

• Creating custom gaskets or sealing rings

• Replacing traditional pre-cut gaskets in metal-to-metal joints

• Applications requiring high heat, vibration, or chemical resistance

Instructions for Use

1. Application: Apply using a manual or pneumatic caulking gun.

2. Surface preparation: Ensure surfaces are clean, dry, and free of oil, dust, or old sealant.

3. Finishing: Smooth before skinning using a soapy solution or finishing tool.

4. Cleaning: Remove excess uncured sealant immediately with white spirit or an appropriate cleaner.

5. Curing: Allow full curing before exposing to pressure or heat.