EPDM rubber o-ring seal different size factory China manufacturer
EPDM rubber o ring seal Operating temperature range: -40 to 150
Color: Usually made in black, but can also be mixed according to the customer’s color.
Hardness 70±5 degrees
Ethylene propylene Rubber (EPDM) is made of ethylene copolymerization, so it has excellent heat, aging, ozone, and stability, but it cannot be added with ethylene ethylene rubber. In order to solve this problem, a small amount of the third component of the double chain is introduced into the EP main chain, which can be sulfurized into EPDM. The general use temperature is -50~150 ℃. Good resistance to sexual solvents such as alcohol
Advantages: good weather resistance and ozone resistance, good water resistance and chemical resistance, can use alcohol and similar, high temperature vapor resistance, good permeability to gas. Cons: Not recommended for food use or exposure to aromatic hydrogen. Seals for high temperature water and steam environments Seals or parts for sanitary equipment. Rubber parts in a braking system. A seal in a radiator (car water tank).
Compared with other commonly used general rubber or special rubber, the main properties of EPDM rubber lie in the following aspects:
1, cost-effective, raw rubber density is only 0.86 ~ 0.90kg/m3, it is commonly used rubber with light raw rubber density; And can be filled in large quantities to reduce the cost of rubber material.
2, excellent aging resistance, weather resistance, ozone resistance, sunlight resistance, heat resistance, water resistance, water vapor resistance, ultraviolet resistance, radiation resistance and other aging properties, in the use of other unsaturated rubber such as NR, SBR, BR, NBR, CR, EPDM can play the role of polymer or antioxidant.
3, excellent chemical resistance, acid, alkali, detergent, animal and plant oil, alcohol, the same; Excellent resistance to water, hot water and steam; Oil tolerance.
4, excellent insulation performance, volume resistivity 1016Qcm, breakdown voltage 30 ~ 40MV/m, dielectric constant (1kHz, 20℃)2.27.
5, wide range of applicable temperature, low use temperature -40 ~ -60℃, can be used for a long time under the condition of 130℃.
