EPDM O-Rings (Ethylene Propylene) Selection Guide

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. Marco Rubber has the world’s largest inventory network of EPDM o-rings and made on demand custom manufacturing often without tooling fees, so the EPDM o-rings you need are always available. Whether it’s for water systems, braking systems, medical, pharmaceutical, food or dairy use, you can count on Marco Rubber to deliver your o-rings fast and efficiently.

EPDM o-rings from Marco Rubber are in-stock and ready to ship (custom specifications can typically be accommodated with no additional tooling fees within a few weeks). Leverage the direct pricing power of the world's largest o-ring inventory network and order EPDM o-rings online today!

Choose Marco Rubber & Plastics for your EPDM O-Rings

As the world's largest o-ring inventory network, Marco Rubber's direct purchasing power can deliver substantial savings on Buna-N o-rings. Our custom size Buna-N o-rings can typically be supplied without additional tooling fees within a few weeks. Order EPDM o-rings online today, call 800-775-6525 to discuss your specific application with a product expert or get a quote in under 60 minutes.

Specialty Resistances
  • Resistant to acids
  • Resistant to bases
  • Resistant to steam
  • Resistant to greases
  • Resistant to phosphate ester hydraulic fluids
  • Resistant to weathering and sunlight
  • Resistant to silicone oils
  • Resistant to glycol brake fluids (DOT 3, 4, 5.1)
  • Resistant to cleaning agents
  • Resistant to ketones
  • Resistant to brake fluids
  • Resistant to some acids
  • Resistant to steam <300ºF
Limitations
  • Not resistant to alternative fuels
  • Not resistant to common fuels
  • Not resistant to mineral oils
  • Not resistant to aliphatic hydrocarbons
  • Not resistant to aromatic hydrocarbons
  • Not resistant to petroleum oils
  • Not resistant to concentrated acids
  • Not resistant to halogenated solvents
  • Not resistant to non-polar solvents
  • Not resistant to kerosene
Mechanical Properties
  • Good Compression Set Resistance
  • Good Heat Stability
  • Fair Shorter Term Resilience
  • Good Permeation Resistance
  • Excellent Electrical Insulator

EPDM Compatibility and Order Online EPDM O-rings In Stock for Lower Cost Basic Chemical and Steam Resistance

Marco
Compound
Number
DatasheetHardness
(Shore A)
ColorLow TempHigh TempFeatures
Compound: E1000Datasheet: View DatasheetHardness: 70Color: BlackLow Temp:
-65 °F
(-55 °C)
High Temp:
300 °F
(150 °C)
Description: Peroxide cured for improved aging, thermal and chemical stability. NSF61 compliant for drinking water applications and FDA compliant per 21 CFR 177.2600. Compare to Parker E1549-70 and Parco 5323-70.Get QuoteBuy Online
Compound: E1005Datasheet: View DatasheetHardness: 70Color: BlackLow Temp:
-65 °F
(-55 °C)
High Temp:
265 °F
(130 °C)
Description: General purpose sulfur cured EPDM. Low cost compound with large stocked inventory. Alternative hardness and color options available. Compare to Parker E0603-70.Get QuoteBuy Online
Compound: E1055Datasheet: View DatasheetHardness: 70Color: BlackLow Temp:
-65 °F
(-55 °C)
High Temp:
300 °F
(150 °C)
Description: Peroxide cured for improved aging, thermal, and chemical stability. Large stocked inventory. Alternative hardness and color options available.Get QuoteBuy Online
Compound: E1069Datasheet: View DatasheetHardness: 70Color: BlackLow Temp:
-65 °F
(-55 °C)
High Temp:
250 °F
(125 °C)
Description: NSF61 compliant for drinking water applications. Internally lubricated with Struktol.Get QuoteBuy Online
Compound: E1071Datasheet: View DatasheetHardness: 75Color: BlackLow Temp:
-50 °F
(-50 °C)
High Temp:
260 °F
(130 °C)
Description: Conductive silver plated nickel filler for EMI / RFI shielding applications. Compare to Parker Chomerics E6434.Get QuoteBuy Online
Compound: E1074Datasheet: View DatasheetHardness: 70Color: Off-whiteLow Temp:
-65 °F
(-55 °C)
High Temp:
300 °F
(150 °C)
Description: USP Class VI, 3A-Dairy, USDA, and FDA compliant.Get QuoteBuy Online
Compound: E1077Datasheet: View DatasheetHardness: 75Color: BlackLow Temp:
-25 °F
(-30 °C)
High Temp:
215 °F
(100 °C)
Description: Conductive nickel plated graphite filler for EMI / RFI shielding applications. Compare to Parker Chomerics E6306.Get QuoteBuy Online
Compound: E1087Datasheet: View DatasheetHardness: 80Color: BlackLow Temp:
-65 °F
(-55 °C)
High Temp:
300 °F
(150 °C)
Description: Compounded to have an extemely high tensile strength. Peroxide cured for improved aging, thermal, and chemical stability.Get QuoteBuy Online
Compound: E1097Datasheet: View DatasheetHardness: 70Color: BlackLow Temp:
-65 °F
(-55 °C)
High Temp:
300 °F
(150 °C)
Description: Peroxide cured, NSF61, 3A-Dairy, USDA, and FDA compliant. Improved chloramine resistance.Get QuoteBuy Online
Compound: E1100Datasheet: View DatasheetHardness: 70Color: TanLow Temp:
-50 °F
(-50 °C)
High Temp:
270 °F
(135 °C)
Description: Silver & Aluminum filled EPDM for conductivity, and EMI & RFI Shielding.Get QuoteBuy Online
Compound: E1118Datasheet: View DatasheetHardness: 75Color: BlackLow Temp:
-45 °F
(-45 °C)
High Temp:
300 °F
(150 °C)
Description: Nuclear safe, improved radiation resistance, low extractables. Compare to James Walker Shieldseal 663.Get QuoteBuy Online
Compound: E1121Datasheet: View DatasheetHardness: 90Color: BlackLow Temp:
-60 °F
(-50 °C)
High Temp:
550 °F
(290 °C)
Description: Y267 cured for greatly improved steam resistance. High hardness compound with excellent Explosive Decompression (ED) resistance. Compare to Parker e0962-90.Get QuoteBuy Online
Compound: E1130Datasheet: View DatasheetHardness: 70Color: BlackLow Temp:
-65 °F
(-55 °C)
High Temp:
300 °F
(150 °C)
Description: NSF51 compliant for food contact.Get QuoteBuy Online

EPDM Temperature Range:

Box: Base Material Family Range
Whiskers: Specialty Compounds

The temperature ranges presented above are approximations for dry air service only and should not be used to determine design specifications or end-use temperature limits. Actual temperature range of a compound in an end-use application is highly dependent on part type, hardware configuration, applied forces, chemical media, pressure and thermal cycling effects, and other factors. The most practical way of determining an end-use temperature range is testing in the actual application conditions. Consult a Marco Engineer for more details.

Mechanical Properties

Good Compression Set Resistance
Good Heat Stability
Fair Shorter Term Resilience
Good Permeation Resistance
Excellent Electrical Insulator

Common Names:

EPDM, Ethylene Propylene Diene Monomer Rubber

Typical Applications and Products

Ethylene-Propylene rubbers make up a family of synthetic elastomers characterized by excellent chemical and thermal resistance. EPDM materials are most commonly used in applications involving solvents, acids, brake fluids, and other aggressive chemicals. It is also known for its resistance to high temperature steam. EPDM has very poor compatibility with most mineral and petroleum based oils and is seldom used in those applications.