What is RTV Sealant?

RTV stands for Room Temperature Vulcanizing. When you squeeze a bead of RTV silicone out of the tube and expose it to air, moisture triggers a chemical reaction that crosslinks the silicone polymer chains into a solid, flexible rubber. No heat gun required. No mixing. It cures on its own.

The result is a formed-in-place gasket, a custom seal that conforms to every surface imperfection, scratch, and minor warp on your mating surfaces. Unlike a pre-cut gasket, which sits between two surfaces with a potential leak path on each side, RTV bonds directly to both flanges. That means one continuous seal instead of two interfaces where oil can find its way out.

This is why many modern engines ship from the factory with RTV on joints like oil pans and timing covers with no pre-cut gasket at all. The manufacturer designed those flanges specifically for a formed-in-place sealant.

Check out the range of ABRO RTV Gasket Makers here.