Ethylene propylene rubber is made of ethylene and propylene copolymerization, the main chain does not contain double bonds, so it has very excellent heat resistance, aging resistance, resilience, insulation, stability, ozone resistance and low temperature resistance, but it can not be vulcanized with sulfur. In order to solve this problem, a small amount of double bond in the main chain of the third component can be sulfurized, that is, EPDM rubber. Excellent resistance to polar solvents such as alcohol, ketone, ethylene glycol and phosphoric acid oil.
Temperature range: -55℃ ~ 125℃, the organic peroxide vulcanization can be as high as 150℃.

Advantages:
· Good weather resistance and ozone resistance
Excellent water resistance and chemical resistance
· Suitable for alcohols and ketones
· High temperature vapor resistance, low gas permeability
· Seals for high temperature water vapor environment
· Sanitary equipment seals or parts
· Rubber parts of the braking (braking) system
· Seals for radiator (car water tank)
Disadvantages:
· Not recommended for food use or exposure to aromatic hydrocarbons

Applicable media:
· Hot water and steam
· Glycol-based brake oil and silicone brake oil
· A variety of organic and inorganic acids
· Detergent, soda, potassium hydroxide
· Phosphate ester hydraulic fluids
· Silicone oil and silicone ester
· A variety of polar solvents (alcohols, ketones, esters)
Not suitable for media:
· Mineral grease and fuel oil