EPDM (Ethylene Propylene Diene Monomer) rubber is a synthetic elastomer known for its excellent weather resistance, electrical insulation properties, and good chemical resistance. Here are some of the key properties of EPDM rubber compounds:

1. Weather Resistance: EPDM rubber is highly resistant to weathering, ozone, and UV radiation. It can withstand extreme temperatures, ranging from -40°C to +150°C (-104°F to +302°F), without significant degradation. This makes it suitable for outdoor applications.

2. Flexibility and Elasticity: EPDM rubber exhibits high elasticity and flexibility, allowing it to withstand repeated bending and stretching without losing its original shape. It has a low compression set, meaning it can return to its original form after compression.

3. Chemical Resistance: EPDM rubber is resistant to a wide range of chemicals, including acids, alkalis, and polar solvents. It also resists aging and degradation when in contact with various oils, greases, and hydraulic fluids.

4. Electrical Insulation: EPDM rubber has excellent electrical insulation properties, making it suitable for applications where electrical resistance and insulation are required. It has a high dielectric strength and low electrical conductivity.

5. Water and Steam Resistance: EPDM rubber has good resistance to water, steam, and moisture. It does not swell or degrade significantly when exposed to water, making it suitable for sealing applications and gaskets.

6. Tear and Abrasion Resistance: EPDM rubber has good tear resistance and can withstand abrasion, making it suitable for applications where mechanical strength and durability are important.

7. Good Sealing Properties: EPDM rubber exhibits excellent sealing properties due to its high resilience and compression set resistance. It is often used in gaskets, seals, and o-rings to provide effective sealing against air, water, and other fluids.

8. Excellent Aging Resistance: EPDM rubber has good resistance to aging, oxidation, and degradation from environmental factors. It maintains its physical properties over a long service life, making it a durable material for various applications.

9. Low Flammability: EPDM rubber has low flammability and is classified as self-extinguishing. It has a high ignition temperature and does not readily support combustion.

10. Good Thermal Stability: EPDM rubber has good thermal stability and can maintain its properties over a wide temperature range. It exhibits minimal thermal expansion and contraction.

These properties make EPDM rubber compounds suitable for a wide range of applications, including automotive components, seals, gaskets, electrical insulation, roofing membranes, weather stripping, hoses, and various industrial products.