Below is a list of Viton Gaskets manufacturers from Mercer Island, Washington. Viton gaskets are synthetic rubber sealing products manufactured by DuPont Performance Elastomers. Viton was the first fluoroelastomer; fluoroelastomers are synthetic rubber products that are usually characterized by a fluorine content of more than 66% and by their qualities of chemical and heat resistance. Viton was introduced in 1957 as a solution for aerospace industry applications.