EPDM is a synthetic rubber composed of ethylene, propylene, and a small amount of diene monomer, resulting in a polymer with excellent resilience and chemical stability. EPDM exhibits a moderate density, contributing to its flexibility and ease of handling. The hardness of EPDM, measured on the Shore A scale, ranges from 40 to 90, indicating variations in the material’s flexibility.

Density: EPDM exhibits a moderate density, contributing to its flexibility and ease of handling.

Hardness: The hardness of EPDM, measured on the Shore A scale, ranges from 40 to 90, indicating variations in the material’s flexibility.

Tensile Strength: EPDM rubber typically possesses tensile strength ranging from 7 MPa to 21 MPa, indicating its ability to withstand stretching forces.

Elongation at Break: EPDM exhibits substantial elongation at break, typically ranging from 100% to 600%, highlighting its stretchability.

Tear Strength: The tear strength of EPDM, ranging from 20 N/mm to 60 N/mm, signifies its resistance to tearing forces.

Temperature Range: EPDM rubber performs effectively in a broad temperature range, withstanding temperatures from approximately -50°C to 150°C (-58°F to 302°F).

Coefficient of Thermal Expansion: EPDM exhibits a moderate coefficient of thermal expansion, contributing to its dimensional stability over varying temperatures.

Dielectric Strength: EPDM rubber demonstrates good dielectric strength, typically around 20 kV/mm, making it suitable for electrical insulation applications.

Volume Resistivity: EPDM maintains high volume resistivity, typically around 1 x 10^14 ohm-cm, indicating its effectiveness in resisting electrical conductivity.

Excellent Resistance To: EPDM rubber excels in resisting oxidizing chemicals, ozone, and weathering, making it suitable for outdoor applications.

Good Resistance To: EPDM offers good resistance to alkalis and acids.

Limited Resistance To: While generally resistant to many chemicals, EPDM has limited resistance to petroleum-based fluids.

EPDM rubber exhibits outstanding resistance to outdoor weathering, UV exposure, and ozone, ensuring durability in various environmental conditions. EPDM rubber is known for its excellent resistance to water and steam, making it suitable for applications involving exposure to moisture. EPDM rubber maintains its resilience and sealing properties even after multiple compression and relaxation cycles, ensuring long-term performance.

Application Areas:

Seals and Gaskets: EPDM is widely used in automotive, construction, and industrial applications for its sealing properties.

Roofing Materials: EPDM is a common choice for roofing membranes due to its weather resistance.

HVAC Systems: EPDM finds applications in gaskets and seals for heating, ventilation, and air conditioning systems.

Electrical Insulation: The dielectric properties of EPDM make it suitable for various electrical insulation applications.

EPDM rubber is available in various forms, including sheets, strips, cords, and molded components. Manufacturers can formulate custom blends to meet specific requirements.