ETHYLENE ACRYLIC RUBBER
| DESCRIPTION |
| Ethylene Acrylic, or AEM, rubber is generally used in applications requiring a tough rubber that combines good oil resistance, with heat resistance greater than nitrile or chloroprene, at a cost well below that of silicone or fluorocarbon rubbers. Good low temperature properties are imparted by the ethylene content, while the acrylate provides a considerable degree of oil resistance. Ethylene Acrylic rubber is highly saturated, and as a result exhibits excellent resistance to ozone and weathering. Ethylene Acrylic compounds are well suited for applications requiring continuous exposure to hot (300°F) aliphatic hydrocarbons, including most common automotive lubricants and hydraulic fluids. Water and ethylene glycol resistance is good, but softening can occur after long term exposure above 200°F. AEM's good dampening characteristics make it well suited for vibration mounts, pads, and isolators. |
| COMPOSITION |
| Medium density copolymer of ethylene and methyl acrylate. May also contain a small amount of a third monomer containing carboxylic acid to provide active cure sites in the polymer chain. |
| PHYSICAL PROPERTIES* | Excellent | Good | Fair | Poor |
| Abrasion resistance | • | |||
| Compression Set | • | |||
| Elongation | • | |||
| Flame resistance | • | |||
| Gas permeability | • | |||
| Low temperature flexibility | • | |||
| Tear resistance | • | |||
| Tensile strength | • |
| CHEMICAL RESISTANCE* | Excellent | Good | Fair | Poor |
| Automatic transmission fluid | • | |||
| Dilute acids | • | |||
| Ozone | • | |||
| Petroleum oils and fuels | • | |||
| Steam | • | |||
| Water | • | |||
| Weather | • |
| OPERATING TEMPERATURE |
| -30 to 300 °F |
*Excellent, good, fair and poor are intended to serve as general guidelines only. Actual testing in the application environment is always recommended.
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12121 Nicollet Avenue S, Burnsville, MN 55337 • 2700 S River Road, Suite 106, Des Plaines, IL 60018
