FKM BioGasket - The BEST
Also known as FKM, Type 1 Fluroelastomer or Viton™ (DuPont Performance Elastomers L.L.C.). The BioGasket™ provides excellent resistance to petroleum oils, inorganic acids, organic acids, fuel hydrocarbons, animal and vegetable oils, mineral oils and solvents; the ideal gasket for biofuel blends.
BioGasket™ also has excellent heat resistance, making service temperatures nearing 150°C / 300°F possible. The General Filters BioGasket™ is ETL Listed for all fuel oils and Bio-Diesel oils up to B100.
Nitrile rubber gaskes provides exellent resistance to petroleum oils, inorganic acids, organic acids, fuel hydrocarbons, animal and vegetable oils, mineral oils and solvents to B5. Temperatures up to 212°F / 100°C.
Also known as Nitrile or Buna-N, is probably the most common gasket material and it is the standard material for petroleum oils. Buna can stand temperatures to 90°C / 200°F . Buna resists aging very well. Not recommended for bio-diesel in concentrations over B5 (20% bio-diesel). Heating oil applications will require gaskets that carry an agency listing: UL, ETL, Intertek, ULC or CUL. All General Filters Buna-N Gaskets carry an ETL agency listing.
Vellumoid is a treated cellulose fiber impregnated with protein glue and glycerin binder. It is used for speciality Chemicals. Temperature up to 120°C / 250°F. Not recommended for petroleum oils.