The sealing strip is a new material developed on the basis of imported technology from abroad and domestic independent research and development in recent years. It is mainly used for automobile door and window sealing strips. In recent years, it has been used in building door and window sealing strips. Its outstanding advantages are:

①Performance and service life are equivalent to vulcanized EPDM rubber sealing strips.

②Processing energy consumption is low compared to vulcanized EPDM rubber strips (equivalent to PVC).

③ It does not contain heavy metals such as halogen and lead, and can be recycled after a few years, which meets the requirements of green building materials.

④ The proportion is small (only 0.9-0.95) and the window exit rate is high. It seems that the purchase price is high and the actual cost is low.