FKM Viton Material | Seal & Design, Inc.

FKM Viton Material

VitonFluorocarbon rubber has excellent resistance to high temperatures, ozone, oxygen, mineral oil, synthetic hydraulic fluids, fuels, aromatics and many organic solvents and chemicals. It has higher resistance to swell in high octane and oxygenated fuel blends.

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). 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.

Names: Viton®, Fluorel®

Compound Info
ASTM D1418 Designation FKM
ASTM D2000/SAE J200 Type, Class HK
Hardness (Shore A) 55-90
Color black
Thermal Properties
Standard Min Temp. -13°F (-25°C)
Standard Max Temp. 446°F (230°C)
Special Min Temp. -40°F (-40°C)
Special Max Temp. 446°F (230°C)

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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/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)

Disclaimer: These are general guidelines only. All materials should be tested in your application.