ETHYLENE PROPYLENE
O-RINGS

EPDM / EPR o-rings deliver excellent chemical and thermal resistance, and are used in a wide range of water and irrigation applications. These o-rings are not recommended for exposure to most oils. Ethylene-Propylene based elastomers comprise of a family of synthetic rubbers characterized by superior chemical and temperature resistance. These materials can be compounded in various ways for use in a wide range of critical applications. Ethylene-Propylene elastomers are most commonly available as EPR, a copolymer of ethylene and propylene, and EPDM, a terpolymer. EPR and EPDM have very similar properties and the abbreviations are often used interchangeably. 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. Let ETS be your premier EPDM o-ring supplier & EPR o-ring supplier.