1. Polyester sound-absorbing cotton
Polyester sound-absorbing cotton is made of polyester fiber blended adhesive and its thickness can reach 20-50mm. It has a good sound absorption and sound insulation effect, which can well prevent the conduction of air noise and road vibration sound. At the same time, its light weight, acid and alkali resistance, waterproof, not easy to age and other characteristics make it widely used in door inner panels, sunroofs, carpets and other parts.
2. Spandex sound-absorbing cotton
Spandex sound-absorbing cotton is made of spandex fiber and adhesive as the main raw materials, which has strong elasticity and resilience. It is usually between 10-30mm thick and can effectively absorb the noise and vibrations transmitted from the inside of the car. Moreover, it has superior performance, is not easy to decompose, has a long service life, and is suitable for parts that require three-dimensional modeling such as car roofs and dashboards.
3. Polyurethane foam
Polyurethane foam sound-absorbing foam is made of polyurethane foam material that is lightweight, low-weight, cost-effective, and versatile. It can reduce noise, vibration and impact inside and outside the car, and its sound insulation and noise reduction effect is superior, suitable for the hood, chassis and other parts.
