EPDM sealing strip was introduced into China in the 1980s, which has brought great convenience to the Chinese people. The history of sealing strip development is closely related to the development of the door and window industry. The renewal of the two has maintained a similar pace, with development and common progress.

As early as the 1990s, the widespread use of aluminum alloy doors and windows in China brought about the era of sealed natural rubber strips. This type of rubber strip not only has low manufacturing costs, but also has a low starting threshold for manufacturing. However, due to the prolonged use of natural rubber strips, various situations such as breakage and hardening may occur. Subsequently, the country announced a ban on steel doors and windows, and natural rubber sealing strips also faded out of the market.

EPDM sealing strip: EPDM foam sealing strip, silicone foam sealing strip, PU foam sealing strip. The foam sealing strip is formed in one step using microwave vulcanization technology, with a smooth and beautiful surface, no contact marks, good elasticity and compression deformation resistance, excellent aging resistance, excellent flame retardant performance, low smoke and low toxicity, stable product performance, and high dimensional accuracy.