FKM Rubber Material | FKM Viton | Seal & Design

FKM Viton       ASTM D 2000, SAE J200 Type/Class: HK

General Characteristics

Fluorocarbon rubber has excellent resistance to high temperatures, ozone, oxygen, mineral oil, synthetic hydraulic fluids, fuels, aromatics and many organic solvents and chemicals. Low temperature resistance is normally not favorable and for static applications is limited, although in certain situations it is suitable down to –40°F (–40°C).

Under dynamic conditions, the lowest service temperature is between 5°F and 0°F (–15°C and –18°C). Gas permeability is very low and similar to that of butyl rubber. Special fluorocarbon compounds exhibit an improved resistance to acids, fuels, water and steam.

AKAs: Fluorocarbon

Viton® Product Line-up

Temperature Properties

Heat Heat Resistance Up to 400°F (204°C) and higher temperatures with shorter life expectancy.
Cold Cold Flexibility Down to -15°F (–26°C) with some varieties to -40°F (-40°C).


Chemical Resistance Chemical Resistance
  • Mineral oil and grease, low swelling in ASTM oil No. 1, and IRM 902 and IRM 903 oilsPhosphate esters
  • Non-flammable hydraulic fuels in the group HFDEngine oils
  • Silicone oil and grease
  • Mineral and vegetable oil and grease
  • Aliphatic hydrocarbons (fuel, butane, propane, natural gas)
  • Aromatic hydrocarbons (benzene, toluene)
  • Chlorinated hydrocarbons (trichlorethylene and carbon tetrachloride)
  • Fuels, also fuels with methanol content
Not compatible NOT compatible
  • • Glycol based brake fluids
  • • Ammonia gas amines, alkalis
  • • Superheated steam
  • • Low molecular organic acids (fomic and acetic acids)

Need assistance choosing a material? Contact us we can help.