Ethylene propylene diene monomer (EPDM) is a copolymer of ethylene, propylene, and a small amount of non conjugated dienes. It is a type of ethylene propylene rubber, represented by EPDM in English. Dongsheng Seals tell you that its ethylene propylene rubber material is unique, with excellent characteristics such as ozone resistance, heat resistance, and aging resistance. It is mainly used in the automotive industry, cables, wires, and other fields.

Main advantages and application fields of ethylene propylene rubber seals

What are the main advantages of EPDM sealing material compared to other commonly used general rubber or special polymer rubber?

1. High cost-effectiveness, with a raw rubber density of only 0.85-0.9kg/m3, making it the lightest commonly used rubber material for raw rubber sealing; And it can be filled in large quantities to reduce the cost of the rubber material;

2. Excellent aging resistance, climate resistance, ozone resistance, sunlight resistance, heat resistance, water resistance, water vapor resistance, UV resistance, radiation resistance and other aging performance characteristics. It can be used in combination with other unsaturated diene rubbers, such as NR, SBR, BR, NBR, and CR. EPDM can act as a polymer antioxidant or antioxidant;

3. Excellent chemical resistance characteristics, such as acid, alkali, detergent, animal and vegetable oils, alcohols, ketones, etc; Has outstanding water resistance, high temperature boiling water resistance, water vapor resistance, and oil resistance performance;

4. Excellent insulation performance, with a volume resistivity breakdown voltage of 30-40MV/m and a dielectric constant of 2.27 at (1khz, 20 ℃);

5. Suitable for a wide range of temperatures, with a minimum operating temperature of -40% to -60%. It can work normally under 130 ° C environmental conditions for a long time.