E Glass cloth is coated with a heavy weight specially formulated red oxide silicone rubber known as Supersil.
The red color is due to the high content of iron oxide, an all important extra ingredient which both increases the temperature rating of the silicone and creates a surface suitable for short term exposure to molten metal.
Silicone has excellent weather and aging resistance and has high stability to ozone and UV light.
It is also water repellent and is resistant to water vapor.
Silicone rubber is non-halogenic and flame retardant.
Supersil silicone can be added in different coating weights and applied to all weights and weave styles of E Glass cloth.
Rated to 250°C , base fabric rated to 550°C (unstressed) in optimum conditions.