EPDM (Ethylene Propylene Rubber)

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EPDM Seals & O-Rings are particularly useful when sealing against phosphate-ester hydraulic fluids and for glycol based fluids.

EPDM is Ethylene Propylene Rubber with the addition of a Diene Monomer.

Competitive lead times & pricing from Lanson Polymers allied with our vast experience in the design & supply of critical seals & components into a variety of markets will allow you to specify the optimum solution for your application.
A wide variety of seals and components can be manufactured using EPDM Materials:


Lanson Polymers Ethylene Propylene Diene Monomer (EPDM) Compounds

LP-319: 70 Durometer – Temperatures from -40°C up to +150°C – general use compound

LP-306: 70 Durometer – Temperatures from -50°C up to +150°C – FDA compliant compound

LP-315: 70 Durometer – Temperatures from -40°C up to +150°C – FDA compliant compound – white

The above compounds are only a small sample of our broad range of EPDM materials – please contact us to discuss your particular application and we can recommend an optimum solution.

Temperature Range

-50°C to +150°C depending on the compound specified


Applications include seals used in hydraulic and braking systems.









  • Excellent resistance to steam and hot water
  • Good ozone resistance
  • Excellent resistance to glycol based break fluids and phosphate-esters
  • Not compatible with mineral oils or petroleum based fluids