To give you the best possible experience, this site uses cookies. By continuing to use the site, or by staying here, you agree to our use of cookies in line with our Privacy Policy. Learn more including how to manage cookies here.

Ethylene Propylene Rubber (EPR, EPDM)

EPR copolymer ethylene propylene and ethylene-propylenediene rubber (EPDM) terpolymer are particularly useful when sealing phosphate-ester hydraulic fluids and in brake systems that use fluids having a glycol base.

 

Heat resistance

• Up to 150°C (302°F) (max. 204°C (400°F)) in water and/or steam)

 

Cold flexibility

• Down to approximately -57°C (-70°F)

 

Chemical resistance

• Hot water and steam up to 149°C (300°F) with special compounds up to 260°C (500°F)

• Glycol based brake fluids (Dot 3 & 4) and silicone-based brake fluids (Dot 5) up to 149°C (300°F)

• Many organic and inorganic acids

• Cleaning agents, sodium and potassium alkalis

• Phosphate-ester based hydraulic fluids (HFD-R)

• Silicone oil and grease

• Many polar solvents (alcohols, ketones, esters)

• Ozone, aging and weather resistant

 

Not compatible with:

Mineral oil products (oils, greases and fuels)

Parker Hannifin
O-Ring & Engineered Seals
2360 Palumbo Drive
Lexington, KY 40509
Ph: 859-269-2351
Fax: 859-335-5128
oesmailbox@parker.com 
www.parkerorings.com