VITON

Fluoroelastomers are also known as fluorocarbons, and the most notable brand is the Viton® brand.
This type of rubber can take temperatures of up to nearly 400ᵒ Fahrenheit, and almost 600ᵒ Fahrenheit if used for short periods of time.
They are resistant to weathering, ozone, oils, and most chemicals as well. However, Viton® rubber is also very expensive, so it is not suitable for all applications.
Most applications that use fluoroelastomers include seals, gaskets, accumulator bladders, diaphragms, and O-rings. The Viton® brand is part of the DuPont Company.