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EPDM Rubber


SRP has been providing custom converted EPDM rubber components to various industries for over 65 years. EPDM provides superior properties for outdoor and high temperature applications. EPDM has excellent resistance to heat, ozone and sunlight and good resistance to alkalis, acids and oxygenated solvents. Very good temperature flexibility, superior resistance to water and steam. It is highly extendible and is sulfur and peroxide curable.

EPDM rubber performs superbly in general exterior applications. Its chemical composition allows it to resist the cracking and discoloration that comes from exposure to UV rays and ozone. It is able to sustain temperatures as low as -40° F and as high as 212° F, making it very well suited for a wide range of applications. These qualities have made EPDM rubber popular for use in industrial settings, such as in the form of seals and gaskets.

EPDM rubber is available in solid and cellular forms. The solid form of EPDM sheet rubber is generally denser and better suited to more physically demanding applications. It does not compress very well, which means that it will retain its original solid form in the presence of physical pressure. The cellular version of EPDM rubber is softer and can be compressed more easily for applications where flexibility is key. Apart from these differences, both solid and cellular EPDM material share nearly identical resistance attributes for outdoor conditions. SRP can manufacture EPDM rubber into gaskets, seals, pads, and more!

The variety of EPDM materials we convert include:

Commercial EPDM Style 40

  • Commercial blend EPDM is the most economical EPDM sheet offered. Intended to be used in less critical applications where temperatures are of an intermittent nature. Great for outdoor environments. Offers excellent resistance to ozone, oxidants, and severe weather conditions.

Premium EPDM

  • High Grade EPDM is suited for applications where a high-performance rating is required. It exhibits excellent resistance to heat, ozone and sunlight and has good temperature flexibility.

Peroxide Cured EPDM

  • Peroxide cured EPDM provides exceptional heat and aging stability and better compression set performance at higher temperatures. Most peroxides do not bloom and have better color control and stability.

Mil-Spec EPDM

  • Mil-Spec materials are approved by the U.S. Department of Defense for use in military specific products.

We provide our customers with everything from material sampling and product prototyping to full manufacturing, packaging, and delivery. We provide value to our customers by delivering exceptional customer service, engineering solutions, and quality products to meet their every need. All EPDM sheet rubber products can be supplied with Pressure Sensitive Adhesives.

EPDM sheet rubber is available in the following formulations:

Polymer Durometer Thickness Specifications
Commercial EPDM Style 40 50-70 1/16 – 1/4 ASTM D 2000, SAE J200, MIL-R-3065
Commercial EPDM 50-70 1/64 – 1/4 ASTM
Premium EPDM Style 45 40-80 1/16 – 1/4 ASTM D 2000, SAE J200, MIL-R-3065
Peroxide Cured EPDM 40-80 1/64 – 1/4″ ASTM M1CA
MIL-R-21252 85 1/64 – 1/4″ MIL-R-21252
MIL-R-83285 80- 1/64 – 1/4″ MIL-R-83285
MIL-R-900 45 1/64 – 1/4″ MIL-R-900
ASTM D2000 M4AA 40-70 1/64 – 1/4″ ASTM D2000 M4AA


For more information, you can reach SRP at info@srpco.com or 847-593-5630.