GOODSOUND Acoustic composite sound insulation board is made of three layers or more of materials with different densities and characteristics, and the material with high molecular damping
Damping Sound Deadening Board is made of different densities of inorganic materials, combined with macromolecule damping glue, which is a high pressure composite sandwich structure to form a damping constraint structure, to change resonancefrequency of original materials, so as to improve air sound insulation and structural sound insulation.