There are many kinds of automobile sound insulation materials. At present, the main products on the market are sound insulation and damping rubber, sound insulation cotton, hood insulation pad, wheel arc liner, automobile sealing strip and other materials. To judge the quality of sound insulation materials, in addition to good sound insulation and shock absorption effect, non-toxic and harmless environmental protection materials are also one of the main evaluation criteria.

Sound insulation damping glue is one of the most commonly used sound insulation materials in the market at present, and it is also the first choice for many car owners to sound insulation. ? It is used with sound-proof and shock-absorbing glue and sound-proof cotton. Automobile sound-absorbing cotton Many mid-to high-end cars are equipped with original cars, usually in the position of door panels, trunk leaves and trunk. Considering the manufacturing cost of the vehicle, the sound insulation cotton of the original vehicle is generally colored recycled cotton.