① Sealing materials role and the static sealing achievement

The role of sealing materials: sealing materials are to enhance the sealing performance, play a sealing, insulation, vibration and noise reduction effect. Good seal can effectively reduce the overall vehicle noise; especially during high speed wind noise are well suppressed results.

Static seal achieved:

1) Compressibility, to achieve flexible closely;

2) Resilience (permanent compression set small), to achieve long-term fastening seal.

② Role and vibration damping materials achievement

The role of damping materials:

1) to achieve flexible connection between the components to reduce vibration fatigue damage to components;

2) Buffer layer formed between the components and reduce the vibrations caused by noise pollution.

Damping achievement: the use of a certain thickness of the polymer materials, through materials, the inherent vibration damping properties to achieve the weakening (relaxation vibrating body vibration, the vibration body and the excitation source separated).