Rocket Seals CorporationDenver, CO
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 Ethylene Propylene (EPDM-EPR)

These sulfur-cured ethylene propylene (EPDM-EPR) O-rings offer the best resistance to phosphate ester based hydraulic fluids (Skydrol). They have high abrasion and weather resistance, and also resist water & hot water, steam to (400F), brake fluids, silicone fluids, dilute acids, and ketones. Not compatible with petroleum fluids and diester lubricants. Durometer is Shore A: 70; temperature range is -65 to 300 F
 
 

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