EPDM

Ethylene propylene Rubbe (EPDM)
Features:
Abbreviation                                             EPDM
ASTM D-2000 classification                      AA,BA,CA,DA
General Characteristics
Tensile Strength                                        Limited
Elongation                                                Good
Rebound Resistance                                  Good
Tear Resistance                                         Limited
Abrasion-Resistance                                  Good
Impact Strength Resistance                        Good
Gas Impermeability Resistance                  Limited
Ozone Resistance                                      Excellent
Weathering Resistance                               Excellent
Flame Resistance                                      Excellent
Heat Resistance                                         Excellent
Low Temperature Resistance                     Good
Oil and Fuel Resistance                             Poor
Animal and Vegetable Oil Resistance         Good 
Alcohol Resistance                                    Suitable
Alkaline Resistance                                   Good
Acid Resistance                                        Good
Aliphatic-solvent Resistance
     -Aliphatic                                             Poor
    -Aromatic                                             Poor
Oxygenated-Solvent Resistance                  Excellent
Water Resistance                                       Excellent
Adhesion To Metals                                  Fair to Good
Advantage:
1. Exceptionally good weather aging and ozone resistance.
2. Excellent water and chemical resistance.
3. Excellent resistance to gas permeability and aging due to exposure to steam.
4. Good in ketones and Alcohols.
Disdvantage:
1. Not recommended for food applications or exposure to aromatic hydrocarbons.