In addition to the surroundings of the door, the sealing strips are provided in the windows, skylights, engine compartment, trunk and other parts. The function is to seal. If the sealing effect is good, not only noise and noise reduction, but also waterproof and windproof.
The material of the sealing strip is mainly rubber, although there are vulcanized rubber, silicone rubber, neoprene, nitrile rubber, thermoplastic elastomers, thermoplastic vulcanizate (TPV), plasticized polyvinyl chloride (PPVC), surface coating materials, etc. Kinds of materials, but because the sealing strip is to isolate the passage between the car and the car, it needs to face the test of severe cold and heat every day, so these materials will definitely age and break over time.