The important component responsible for sound insulation, heat insulation, moisture resistance, and fire prevention is the sealing strip of aluminum doors and windows. So, which type of sealing strip is better for aluminum alloy doors and windows?
For long-term use of door and window products, use high-performance EPDM rubber strips because they have the following advantages:
Good weather resistance
Ethylene propylene rubber has good weather resistance and can be used in sunny, humid, and cold environments for a long time. The carbon black containing ethylene propylene rubber vulcanized rubber did not crack after being exposed to sunlight for three years, and its physical and mechanical properties changed very little. Ethylene propylene rubber products can be used for 30-50 years in their natural state.
Secondly, aging resistance performance
Ethylene propylene rubber has high chemical stability and aging resistance among general rubbers.
Thirdly, temperature resistance performance
Ethylene propylene rubber products can be used for a long time in an environment of 120 ℃ under normal circumstances, with a high operating temperature of 150 ℃. Ethylene propylene rubber aging belongs to cross-linking type, and the rubber becomes harder after aging.
Fourth: Ozone performance
Ethylene propylene rubber has outstanding ozone resistance, which is not only superior to natural rubber, butadiene rubber, chloroprene rubber and other usable rubbers, but also superior to butyl rubber, which is generally considered to have good aging resistance.