List of sound insulation materials:
OuSail green environmental noise insulation adhesive.
OuSail sound absorbent cotton
Sound insulation part: four door base rear box.

First, cut the material into pieces, so that it can be operated conveniently.

Do not look simple, in fact, many small parts are very difficult to operate, paste the material must be compacted.

Sound absorber cotton alone will not be very ideal effect, so to cooperate with the sound insulation glue together, the operation of sound absorber cotton without the complexity of sound insulation glue, paste up is also easy.