Material property

EPM/EPDM
 
Ethylene propylene rubber by the copolymerization of ethylene and propylene as primary key, not containing double bond, so the heat resistance, weather resistance and anti odor are very good. In the ozone concentration of 100 × 10 (PPHM), 2430 hours do not produce cracking, outdoor life up to 25 years. In 160 ℃ water vapor, ethylene propylene rubber also exhibit excellent performance than other commonly used rubber, it also has the resilience, good insulation performance (volume resistivity of about 10 breakdown voltage 3040kv/mm) and low temperature resistance (Tg ≈ -60 ℃). EPDM (three EPDM) applicable to 150 ℃ ethylene glycol brake fluid, water and water vapor (up to 150 ℃), silicone oil and grease, animal and vegetable oils, most organic and inorganic acid, detergent, soap and potassic alkaline environment, most polar solvent (acetone, alcohol, ester), phosphate ester hydraulic oil (Skydrol?, Pydraul?) and a refrigerant R 134a +PAG system, resistance to chlorine and chlorine ammonia effect is good, can also be used for environmental acetic acid under 3%-5%, but not suitable for mineral oil and grease and aromatic and olefinic solvents. Ethylene propylene rubber vulcanization speed is slow shortcomings, not and diene rubber co vulcanization, self adhesive and mutual viscosity is poor, poor air tightness.
    (one) temperature range
      -55 ℃ ~ 125 ℃, the organic peroxide sulfuration time up to 150 ℃.
    (two) hardness range
      Shore A40 to 90 degrees
    (three) colour
      Black, brown, green, white, brown red, yellow, blue, orange, grey, purple, the color can also be specified by the client.
    (four) application
       Ethylene propylene rubber is widely used in the automobile industry, it can be made into automobile diaphragm, cups, dustproof rubber sleeve, brake parts, radiator and the water tank is connected to the engine hose, shock absorber, and doors and windows, lights, trunk sealing strip. Ethylene propylene rubber in the construction industry and the asphalt and can be used as the waterproof material, can be made of damping products bridge industry, building plastic steel door and window seals, indoor rubber floor tile. Ethylene propylene rubber can be used as the insulation of transformer, and also can be made into other high, low-voltage insulation products. Products of ethylene propylene rubber can be made of a variety of chemical corrosion, such as anti-corrosion lining of acid and alkali, ammonia, chloride, all kinds of hose, heat resistant conveyor belt, transmission belt, gaskets, seals. And magnetic electrical appliances in the sealing strip, cold and warm air machine parts, washing machine, the vacuum cleaner seal parts, cloth rubber kayak etc.

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