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Parker's 75 durometer black EPDM, E0740-75 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. This is the most common material for nuclear applications.
Temperature range: -70°F to 250°F (-57°C to 121°C)
Chemical resistance
• Hot water and steam up to 400 (204°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 low compression set and radiation resistance
*Custom sizes and coatings/markings are available upon request. Contact Parker O-Ring Division at 859-269-2351 for design and pricing assistance.
