EPDM 70 Shore A O Ring Black Color

EPDM 70 shore A O ring Black Color

EPDM o-rings, or ethylene propylene o-rings, are a family of synthetic elastomers with lower cost steam and chemical resistance, particularly for applications involving solvents, acids and other mild chemicals. EPDM can be cured with either Sulphur or Peroxide. Sulphur curing is less expensive and easier to process but the product may be tacky and can exhibit some bloom. Peroxide curing is more difficult to process but provides better chemical, thermal, and aging resistance.

EPDM o-rings and seals are available in both metric selection and in standard AS568.

Applications: The use of EPDM o-rings and seals are commonly found in the automotive manufacturing industry where sealing of brake systems is required. EPDM material is also compatible with heat as in steam and water vapor. In terms of chemical resistance, it has the ability to withstand mild acids and greases. Similar chemical media that are compatible with EPDM material include ketones, alkalis, silicone oils and alcohols.

EPDM O-Rings Chemical Resistance and Compatibility:

Hot water and steam up to 300°F (149°C) with special compounds up to 600°F (315°C)

Glycol based brake fluids up to 300°F (149°C)

Many organic and inorganic acids

Cleaning agents, soda 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

EPDM O-Rings Not Compatible With:

Petroleum and mineral oil products (oils, greases and fuels)

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