WELLYOUNG acoustic perforated gypsum board is designed on the basis of helholtz resonance theorem, After perforated, the holes, board and the wall make up of many resonant cavities, when air molecules pass the holes, the resonant cavities will consume large quantities of sound energy. WELLYOUNG perforated gypsum board is one of the best sound absorption products, it ie widely used in Auditorium, office, cinema, churcSurface Treatmenth, hospital. School and so on. Surface Treatment plain paper; pvc lamination; latex painted Backside Acoustic non-woven cloth, white or black color Thickness 12mm Size 1200x2400mm Edge Square Size of hole Round hole,Square hole,Cross hole, Irregular hole,Micro hole,Rectangle hole, Long round hole, Cellular hole Perforation Patterns H1, H2, H2L, H4, H4L, H6, H8 Perforation Rate 6.8%-19.6% Sound Absorption aw 0.65 NRC 0.70 Climate (RH) 70 Density 9.4 Kg/m2 K-Value 0.1w/m k Applications Suspending ceiling, wall partition Other installation Materials Multipurpose Interior Putty,Jointing Compound,Drywall Screw,Paper Tape,Glass Fiber Mesh. (we also offer these products)
