Ethylene Propylene 50 Durometer O-Ring (EA454-50)

Parker's 50 durometer black EPDM, EA454-50, is a  terpolymer of ethylene and propylene with a diene third monomer used for cross linking.  This is particularly useful when sealing phosphate-ester hydraulic fluids and in brake systems that use fluids having a glycol base.

Temperature range: -70°F to 250°F (-57°C to 121°C)

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

Used for General Purpose

*Custom sizes and coatings/markings are available upon request. Contact Parker O-Ring Division at 859-269-2351 for design and pricing assistance.