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Polyacrylates are copolymers of ethyl and acrylates which exhibit excellent resistance to petroleum fuels and oils and can retain their properties when sealing petroleum oils at continuous high temperatures up to 300 °F. These properties make polyacrylates suitable for use in automotive automatic transmissions, steering systems, and other applications where petroleum and high temperature resistance are required.
Polyacrylates also exhibit resistance to cracking when exposed to ozone and sunlight.
Polyacrylates are not recommended for applications where the elastomer will be exposed to brake fluids, chlorinated hydrocarbons, alcohol, or glycols.
Temperature Range (dry heat)
-60 °F(-51 °C)
300 °F(149 °C)
Application Advantages
» petroleum fuel and oil resistance
» resists flex cracking
» good ozone resistance
» good heat resistance
Primary Uses
Application Disadvantages
O-rings, rubber seals and custom molded rubber components for:
» Automotive transmissions.
» Automotive steering systems
» poor compression set performance relative to NBR
» lesser water resistance and low temperature performance than some other elastomers
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