Products » Materials » Rubber » Ethylene Acrylic Rubber
 

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.