EPDM Rubber

COMMON NAME: EPDM, EPR, EPT

General Characteristics

EPDM rubber is widely chosen for its outstanding ability to withstand weathering, ozone, and heat. Below are its general characteristics.

  • ASTM D-2000 Classification: CA
  • Military (MIL STD 417): RS
  • Chemical Definition: Ethylene Proplyene
  • Durometer Range (Shore A): 30-90
  • Tensile Range (P.S.I.): 500-2500
  • Elongation (Max %): 600
  • Compression Set: Good
  • Resilience-Rebound: Good
  • Abrasion Resistance: Good
  • Tear Resistance: Fair
  • Solvent Resistance: Poor
  • Oil Resistance: Poor
  • Low Temperature Usage (F°): -20° to -60°
  • High Temperature Usage (F°): to 35°
  • Aging Weather-Sunlight: Excellent
  • Adhesion to Metals: Fair to Good

EPDM Properties & Performance Characteristics

Ethylene Propylene (EPDM) is a polymer with outstanding properties. It has exceptionally good weather aging and ozone resistance; excellent water and chemical resistance; excellent resistance to gas permeability, and excellent resistance to aging due to exposure to steam. Heat resistance is excellent up to 50 degrees F. Ethylene Propylene is a polymer where oil and solvent resistance is poor, however it is fairly good in ketones and alcohols. It is not recommended for food applications or exposure to aromatic hydrocarbons.

Benefits of Ethylene Propylene (EPR)

Good ozone resistance for long-lasting outdoor performance.

Excellent water and chemical resistance for industrial environments.

Excellent heat resistance, making EPDM rubber reliable in demanding applications.

Common Uses for EPDM Rubber

Ethylene Propylene is commonly used in automotive seals and weatherstripping, window and door seals, roofing membranes, outdoor gaskets, weatherproofing membranes, electrical insulation, and HVAC systems. Its durability in extreme weather conditions makes it a preferred choice across industries.

EPDM rubber rods in different diameters used for seals, gaskets, and insulation

Looking for Custom EPDM Rubber Components?

At CMDI, we manufacture custom molded parts from EPDM rubber to meet the specific requirements of your application.

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