Compared with butyl rubber, EPDM rubber has better heat resistance, aging resistance (especially ozone resistance) than butyl rubber. The proper amount of EPDM compound used in butyl foam can improve the heat resistance and aging resistance of the foam, and further extend the service life of relative rubber product.
EPDM compound is used to improve the performance of heat-resistant sponge products. EPDM remanufactured from UNVULCANIZED EPDM or recycled EPDM rubber products has the same high and low temperature resistance and anti-aging properties as EPDM, what's more, the price is much lower than EPDM, the better compatibility with butyl rubber can reduce the cost of raw materials on the premise of improving the comprehensive properties of butyl heat resistant sponge.
Sponge rubber is excellent in anti-ozone, UV resistance, weather resistance and aging resistance. It has high filling coordination for Good electrical insulation, chemical resistance, impact elasticity, acid and Alkali Resistance and small specific gravity. The disadvantage is self-adhesive and mutual adhesive is very poor, not easy to stick. Temperature range: ABOUT-50 °C ~ + 150 °C.
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