EPDM O-ring is nothing but the ethylene-propylene o-ring. It is an elastomer made from ethylene and propylene monomers. These mixes are utilized often to seal as a part of slowing mechanisms, and for fixing boiling point water and steam. Ethylene Propylene has increased wide seal industry acknowledgement for its fabulous ozone and substance resistance properties and is good with numerous polar liquids that unfavorably influence different elastomers. They are not suggested for applications with petroleum oils, mineral oil or fuel introduction.