Inseal stocks a range of standard size EPDM O rings. Specials can also be supplied to order.
These o rings are used in sealing and electrical insulation applications.
EPDM is used frequently to seal in brake systems, and for sealing hot water and steam. Ethylene propylene compounds have good resistance to mild acids, detergents, alkalis, silicone oils and greases, ketones, and alcohols.
They are not recommended for applications with petroleum oils, mineral oil, di-ester lubricants, or fuel exposure. Ethylene Propylene has gained wide seal industry acceptance for its excellent ozone and chemical resistance properties and is compatible with many polar fluids that adversely affect other elastomers. The ethylene-propylene o-ring is commonly referred to as an EPDM o-ring, or EP, EPT, EPR o-rings.