Except around the door, the sealing strips are located in the windows, sunroof, engine compartment, trunk, etc. The function is to seal. If the sealing effect is good, not only sound insulation and noise reduction, but also waterproof and windproof. However, the material of the sealing strip is mainly rubber, although there are vulcanized rubber, silicone rubber, neoprene, nitrile rubber, thermoplastic elastomers, thermoplastic vulcanizates (TPV), plasticized polyvinyl chloride (PPVC), and surface coating materials. And other materials, but because the seal is to isolate the interior and exterior of the car, the need to face the test of severe cold and heat every day, so these materials will certainly age and break over time.

In addition to the poor sound insulation effect and air leakage mentioned above, if there are obvious rubber cracks or visible damage on the sealing strip, it is necessary to replace it. First of all, before replacing the sealing strip, you must choose a style according to the sealing strip used on your model. The sealing strip used by different models may also be different.