EPDM or Ethylene Propylene
- Abbreviation: EP, EPR, EPT, EPDM
- ASTM D-2000 Classification: AA, BA, CA, DA
- Chemical Definition: ethylene propylene diene
Physical & Mechanical Properties
- Durometer or Hardness Range: 30 – 90 Shore A
- Tensile Strength Range: 500 – 2,500 PSI
- Elongation (Range %): 100% – 700%
- Abrasion Resistance: Good
- Adhesion to Metal: Good to Excellent
- Adhesion to Rigid Materials: Good to Excellent
- Compression Set: Poor to Excellent
- Flex Cracking Resistance: Good
- Impact Resistance: Very Good
- Resilience / Rebound: Fair to Good
- Tear Resistance: Fair to Good
- Vibration Dampening: Fair to Good
Chemical Resistance
- Acids, Dilute: Excellent
- Acids, Concentrated: Excellent
- Acids, Organic (Dilute): Excellen
- Acids, Organic (Concentrated): Fair to Good
- Acids, Inorganic: Excellent
- Alcohol’s: Good to Excellent
- Aldehydes: Good to Excellent
- Alkalies, Dilute: Excellent
- Alkalies, Concentrated: Excellent
- Amines: Fair to Good
- Animal & Vegetable Oils Good
- Brake Fluids, Non-Petroleum Based: Good to Excellent
- Diester Oils: Poor
- Esters, Alkyl Phosphate: Excellent
- Esters, Aryl Phosphate: Excellent
- Ethers: Fair
- Fuel, Aliphatic Hydrocarbon: Poor
- Fuel, Aromatic Hydrocarbon: Poor
- Fuel, Extended (Oxygenated): Poor
- Halogenated Solvents: Poor
- Hydrocarbon, Halogenated: Poor
- Ketones: Good to Excellent
- Lacquer Solvents: Poor
- LP Gases & Fuel Oils: Poor
- Mineral Oils: Poor
- Oil Resistance: Poor
- Petroleum Aromatic: Poor
- Petroleum Non-Aromatic: Poor
- Refrigerant Ammonia: Good
- Refrigerant Halofluorocarbons: R-12, R-13
- Refrigerant Halofluorocarbons w/ Oil: Poor
- Silicone Oil: Excellent
- Solvent Resistance: Poor
Thermal Properties
- Low Temperature Range: -60º F to -40º F
- Minimum for Continuous Use (Static): -60º F
- Brittle Point: -70º F
- High Temperature Range: +220º F to +300º F
- Maximum for Continuous Use (Static): +300º F
Environmental Performance
- Colorability: Good to Excellent
- Flame Resistance: Poor
- Gas Permeability: Fair to Good
- Odor: Good
- Ozone Resistance: Good to Excellent
- Oxidation Resistance: Excellent
- Radiation Resistance: Good to Excellent
- Steam Resistance: Excellent
- Sunlight Resistance: Excellent
- Taste Retention: Good to Excellent
- Weather Resistance: Excellent
- Water Resistance: Excellent
For assistance in identifying the appropriate polymer or material, or to develop and formulate an EP or ethylene eropylene 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.