... Because of these properties, PTFE gaskets, washers and seals are used in the following industries:Electrical ApplicationsFood, Beverage ... to: Strong acids (except hydrofluoric), solvents, hydrocarbons, water, steam, chlorine, and cryogenics. Conforms to FDA regulations ... to: Strong caustics, moderate acides, chlorine, gases, water, steam, hydrocarbons, and aluminum fluoride Conforms to FDA ...