FKM or Fluorocarbon / Fluoroelastomer Viton® / Fluorel®
- Abbreviation: FKM
- ASTM D-2000 Classification: HK
- Chemical Definition: Vinylidienefluoridehexafluropropylene
Physical & Mechanical Properties
- Durometer or Hardness Range: 50 – 95 Shore A
- Tensile Strength Range: 500 – 2,000 PSI
- Elongation (Range %): 400% – 500%
- Abrasion Resistance: Fair to Good
- Adhesion to Metal: Good to Excellent
- Adhesion to Rigid Materials: Fair to Good
- Compression Set: Good to Excellent
- Flex Cracking Resistance: Fair to Good
- Impact Resistance: Good
- Resilience / Rebound: Poor to Fair
- Tear Resistance: Fair to Good
- Vibration Dampening: Fair to Good
Chemical Resistance
- Acids, Dilute: Good to Excellent
- Acids, Concentrated: Good to Excellent
- Acids, Organic (Dilute): Fair to Good
- Acids, Organic (Concentrated): Poor to Good
- Acids, Inorganic: Good to Excellent
- Alcohol’s: Fair to Excellent
- Aldehydes: Poor
- Alkalies, Dilute: Fair to Good
- Alkalies, Concentrated: Poor
- Amines: Poor
- Animal & Vegetable Oils: Excellent
- Brake Fluids, Non-Petroleum Based: Poor to Fair
- Diester Oils: Good to Excellent
- Esters, Alkyl Phosphate: Poor
- Esters, Aryl Phosphate: Excellent
- Ethers: Poor
- Fuel, Aliphatic Hydrocarbon: Excellent
- Fuel, Aromatic Hydrocarbon: Excellent
- Fuel, Extended (Oxygenated): Excellent
- Halogenated Solvents: Good to Excellent
- Hydrocarbon, Halogenated: Good to Excellent
- Ketones: Poor
- Lacquer Solvents: Poor
- LP Gases & Fuel Oils: Excellent
- Mineral Oils: Excellent
- Oil Resistance: Excellent
- Petroleum Aromatic: Excellent
- Petroleum Non-Aromatic: Excellent
- Refrigerant Ammonia: Poor
- Refrigerant Halofluorocarbons: R-11, R-12, R-13
- Refrigerant Halofluorocarbons w/ Oil: R-11, R-12
- Silicone Oil: Excellent
- Solvent Resistance: Excellent
Thermal Properties
- Low Temperature Range: -30º F to 0º F
- Minimum for Continuous Use (Static): +10º F to -30º F
- Brittle Point: 0º F to -40º F
- High Temperature Range: +450º F to +500º F
- Maximum for Continuous Use (Static): +500º F
Environmental Performance
- Colorability: Good to Excellent
- Flame Resistance: Good to Excellent
- Gas Permeability: Good to Excellent
- Odor: Good
- Ozone Resistance: Excellent
- Oxidation Resistance: Excellent
- Radiation Resistance: Fair to Good
- Steam Resistance: Good to Excellent
- Sunlight Resistance: Good to Excellent
- Taste Retention: Fair to Good
- Weather Resistance: Excellent
- Water Resistance: Excellent
For assistance in identifying the appropriate polymer or material, or to develop and formulate a fluorocarbon / fluoroelastomer rubber compound to meet your specific application and performance requirements, please contact Rahco Rubber, Inc. at sales@rahco-rubber.com or 847-298-4200.
Rahco Rubber, Inc. makes no expressed or implied warranty as to any qualities, attributes, or characteristics of any polymer or material. This information is provided for reference only.