EA or Vamac® Ethylene Acrylic Rubber
- Abbreviation: EA
- ASTM D-2000 Classification: EA
- Chemical Definition: Acrylic
Physical & Mechanical Properties
- Durometer or Hardness Range: 35 – 95 Shore A
- Tensile Strength Range: 500 – 3,000 PSI
- Elongation (Range %): 200% – 850%
- Abrasion Resistance: Good to Excellent
- Adhesion to Metal: Good
- Adhesion to Rigid Materials: Good
- Compression Set: Poor to Good
- Flex Cracking Resistance: Good
- Impact Resistance: Good to Very Good
- Resilience / Rebound: Poor to Fair
- Tear Resistance: Good to Excellent
- Vibration Dampening: Good
Chemical Resistance
- Acids, Dilute: Good
- Acids, Concentrated: Poor to Fair
- Acids, Organic (Dilute): Good to Excellent
- Acids, Organic (Concentrated): Poor to Excellent
- Acids, Inorganic: Fair to Good
- Alcohol’s: Good to Excellent
- Aldehydes: Fair to Good
- Alkalies, Dilute: Good to Excellent
- Alkalies, Concentrated: Poor
- Amines: Good
- Animal & Vegetable Oils: Good
- Brake Fluids, Non-Petroleum Based: Poor
- Diester Oils: Poor
- Esters, Alkyl Phosphate: Poor
- Esters, Aryl Phosphate: Poor
- Ethers: Poor
- Fuel, Aliphatic Hydrocarbon: Good
- Fuel, Aromatic Hydrocarbon: Poor to Fair
- Fuel, Extended (Oxygenated): Fair
- Halogenated Solvents: Poor to Good
- Hydrocarbon, Halogenated: Poor
- Ketones: Poor
- Lacquer Solvents: Poor
- LP Gases & Fuel Oils: Poor
- Mineral Oils: Poor
- Oil Resistance: Poor
- Petroleum Aromatic: Poor
- Petroleum Non-Aromatic: Poor
- Refrigerant Ammonia: Poor to Good
- Refrigerant Halofluorocarbons: Poor to Good
- Refrigerant Halofluorocarbons w/ Oil: Poor
- Silicone Oil: Good to Excellent
- Solvent Resistance: Poor
Thermal Properties
- Low Temperature Range: -55° F to -30° F
- Minimum for Continuous Use (Static): -50° F
- Brittle Point: -75° F
- High Temperature Range: +250° F to +350° F
- Maximum for Continuous Use (Static): +350° F
Environmental Performance
- Colorability: Good
- Flame Resistance: Poor
- Gas Permeability: Excellent
- Odor: Good
- Ozone Resistance: Excellent
- Oxidation Resistance: Excellent
- Radiation Resistance: Good
- Steam Resistance: Poor to Fair
- Sunlight Resistance: Excellent
- Taste Retention: Fair to Good
- Weather Resistance: Excellent
- Water Resistance: Good to Excellent
For assistance in identifying the appropriate polymer or material, or to develop and formulate an EA / ethylene acrylic 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.
Vamac® is a registered trademark of the DuPont Corporation.