General Characteristics
- ASTM D-2000 Classification: CA
- Military (MIL STD 417): RS
- Chemical Definition: Ethylene Proplyene
- Durometer Range (Shore A): 30-90
- Tensile Range (P.S.I.): 500-2500
- Elongation (Max %): 600
- Compression Set: Good
- Resilience-Rebound: Good
- Abrasion Resistance: Good
- Tear Resistance: Fair
- Solvent Resistance: Poor
- Oil Resistance: Poor
- Low Temperature Usage (F°): -20° to -60°
- High Temperature Usage (F°): to 35°
- Aging Weather-Sunlight: Excellent
- Adhesion to Metals: Fair to Good
Ethylene Propylene (EPDM) is a polymer with outstanding properties. It has exceptionally good weather aging and ozone resistance; excellent water and chemical resistance; excellent resistance to gas permeability, and excellent resistance to aging due to exposure to steam. Heat resistance is excellent up to 50 degrees F. Ethylene Propylene is a polymer where oil and solvent resistance is poor, however it is fairly good in ketones and alcohols. It is not recommended for food applications or exposure to aromatic hydrocarbons.