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. It is widely used in auditorium, office, cinema, hospital, school and so on.
specification
Surface Treatment paper faced or panited
Backside Acoustic non-woven
cloth, white or black color
Thickness 12mm
Size 1200x2400mm
Size of hole Round, Square, Cross, Irregular, Micro, Rectangle,
Perforation Patterns H1, H2, H2L, H4, H4L, H6, H8
Perforation Rate 6.8%-19.6%
Sound Absorption NRC 0.70