(1) High cost performance ratio, raw rubber density is only 0.87, which is a common valve with light raw rubber density; A large amount of oil can be filled and fillers can be added to reduce the cost of the rubber compound and make up for the high price of raw EPDM rubber. For EPDM valves with high Mooney value, the physical and mechanical properties of high filled EPDM valves have little reduction (2) Excellent aging resistance, weather resistance, ozone resistance, sunlight resistance, acid and alkali resistance, heat resistance, water resistance, water vapor resistance, UV resistance Radiation resistance, color stability and other aging functions. When used together with other unsaturated diene valves such as NR, SBR, BR, NBR, and CR, EPDM can act as a high antioxidant or antioxidant. (3) Excellent insulation function, volume resistivity 1016Q · cm, breakdown voltage 30~40MV/m, dielectric (1kHz, 20 ℃) 2.27.
(4) Excellent chemical resistance, acid, alkali, detergent, animal and vegetable oil, alcohol, ketone, etc; Excellent water resistance, superheated water resistance and steam resistance; Oil resistance.
(5) The temperature range is wide. The temperature is - 40~- 60 ℃. It can be used at 120 ℃ for a long time.