Viton Chemical Compatibility Chart

Viton fluoroelastomer in general has a high temperature tolerance and chemical resistance rating. It is a synthetic rubber that resists many hydrocarbons, biodiesel, and petro chemicals, but is NOT compatible with ketones. Do not use Viton with acetone, esters, amines, organic acids, acetic acid, MEK, ethyl acetate, highly polar chemicals, etc.

Heat

Viton withstands high temperature better than most other elastomers, and retains its good mechanical properties. Oil and chemical resistance are also essentially unaffected by elevated temperatures. Compounds of Viton remain substantially elastic indefinitely when exposed to laboratory air oven aging up to 204°C or to intermittent exposures up to 316°C. High temperature service limits are generally considered to be:

• 3,000 hr at 232°C
• 1,000 hr at 260°C
• 240 hr at 288°C
• 48 hr at 316°C

Cold

Viton is generally serviceable in dynamic applications to temperatures of -18 to -23 °C. Special formulations permit its use in static applications down to -54°C. Also, Viton has proven to be satisfactory for static seals used under conditions approaching absolute zero. Viton is characterized by its:

• Resistance to degradation by a greater variety of fluids and chemicals than any nonfluorinated elastomer.
• Excellent resistance to oils, fuels, lubricants, and most mineral acids.
• Extremely low permeability to a broad range of substances, including oxygenated automotive fuels.
• Resistance to aliphatic, aromatic hydrocarbons that dissolve other rubbers.
• Exceptionally good resistance to compression set, even at high temperatures.
• Exceptionally good resistance to atmospheric oxidation, sun, and weather.
• Excellent resistance to fungus and mold.
• Good electrical properties in low voltage, low frequency applications.
• Low burning characteristics; inherently more resistant to burning than other, non-fluorinated hydrocarbon rubbers.

Please Note: The information in this chart has been supplied by reputable sources and is to be used ONLY as a guide in selecting equipment for appropriate chemical compatibility. ALWAYS test your equipment under the specific conditions of your application before permanent installation.  Ratings of chemical behavior listed in this chart apply at a 48-hr exposure period. We have no knowledge of possible effects beyond this period. We do not warrant (neither express nor implied) that the information in this chart is accurate or complete or that any material is suitable for any purpose.

Explanation of Footnotes
^1. Satisfactory to 72°F (22°C)
^2. Satisfactory to 120°F (48°C)

Ratings: Chemical Effect
A = Excellent.
B = Good, Minor Effect, slight corrosion or discoloration
C = Fair, Moderate Effect, not recommended for continuous use. Softening, loss of strength, or swelling may occur.
D = Severe Effect, not recommended for ANY use.
N/A = Information not available.

CAUTION: Variations in chemical behavior during handling due to factors such as temperature, pressure, and concentrations can cause equipment to fail, even though it passed an initial test.