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Viton® (FKM)
Viton® is a popular high-performance rubber that has great resistance to organic solvents, chemicals, mineral oil, oxygen, hydraulic fluids, fuels, ozone, high temperatures, and aromatics.
Salient Features:
- Good tear strength
- Flame retardant
- Ozone, oxygen, and weather-resistant
- Chemical and heat resistant
- Low gas permeability
- Cold flexibility
- Low compression set
Common Applications:
- Industrial applications
- O-rings
- Automotive applications
- Aerospace applications
- Chemical processing
Properties:
- Hardness: 50-90 Shore A
- Temperature resistance: -20° C to +200° C (+250° C)
- Standard colors: Black
Advantages:
Viton® performs exceptionally well in mineral oil and grease, fuels or blends with ethanol or methanol, high vacuum environments, strong acids, ozone, and petroleum products
Limitations:
Viton® compounds are prone to acetic acids, superheat steam, chlorosulfonic acids at high heat, amines, formic acid, ketones, hydrofluoric, nitro hydrocarbons, and phosphate ester-based hydraulic fluids.
Viton™ Product Comparison
| Viton™ Type | A | B | F | GF | GLT | GFLT | XLT | ULT | ETP | BRFKM |
|---|---|---|---|---|---|---|---|---|---|---|
| Low-Temperature Performance | (225) | (225) | (225) | (225) | (225) | (225) | (225) | (225) | (225) | (232) |
| High-Temperature Performance (C°) | (-26) | (-24) | (-17) | (-16) | (-40) | (-34) | (-48) | (-54) | (-21) | (-17) |
| Aqueous Fluids, Steam, Mineral Acids | Not Recommended | Good | Good | Great | Great | Great | Great | Great | Great | Great |
| Aromatic Hydrocarbons | Good | Great | Great | Great | Good | Great | Great | Great | Great | Great |
| Automotive Fuels Oxygeneated with ETOH, MEOH, MTBE | Good | Great | Great | Great | Good | Great | Great | Great | Great | Great |
| Resistance to Compression Set | Great | Good | Good | Good | Good | Good | Good | Good | Good | Good |
| Automative and Most Aviation Fuels | Great | Great | Great | Great | Great | Great | Great | Great | Great | Great |
