EPDM SEALS

EPDM seals (ethylene propylene diene monomer) are manufactured using an advanced formulation of elastomer with a wide range of uses. EPDM is a versatile elastomer which can be molded into sealing components for many different applications and industries, with advantageous properties such as its resilience to heat and certain chemicals.

 

Sealing products made with EPDM provide operating temperatures ranging from -45° to 177°C (-50° to 350°F). This range makes EPDM an excellent choice for applications which require temperature extremes and protection against weathering.

 

Temperature resistance:

One key characteristic of EPDM seals is that they demonstrate excellent heat and steam resistance. While it is true that many other elastomeric polymers are resistant to temperature extremes, few can deal with both high and low temperatures in the same way as EPDM. This property makes EPDM a leading choice for seal manufacturers looking to find solutions for applications in hot and cold operating environments.

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Brake caliper piston seals & dust boots are made from EPDM.  Silicone dust boots are available, but are susceptible to damage if brake fluid contacts them.  They are, however, more temperature resistant than EPDM and are used primarily in racing applications.

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EPDM Properties:

• Hardness: Shore A20-90

• Tensile Strength: 500-2500 PSI

• Tear Resistance: Fair

• Impact Resistance: Good

• Compression Set: Good

• Low Temperature: -45°C (-49°F)

• High Temperature: 177°C (350°F)

• Weather and Sunlight: Excellent

• Water: Excellent

• Abrasion Resistance: Good

• Solvent Resistance: Poor

• Oils and Gasoline: Poor

• Adhesion to Metals: Fair to Good