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.

Feature
1. Acoustic perforated gypsum board
2. Light weight in unit acreage
3. High edge rigidity
4. Strong nail pull resistance
5. Smooth,paintable surface
6. NO visible joints and grid
7. Sustainable,fully recyclable material
8. Installs on any standard drywall suspension system
9. Fireproof and stop burning
10. Moisture resistance,sag resistance

specifications:
Based board Knauf gypsum board or common gypsum board
Thickness 12mm
Size 1200*2400
Square hole 3/8.33, 5/15, 8/20, 10/20, 12/25mm
Round hole 6/18.18, 6/20, 6/25, 8/18, 8/17, 8/20, 8/25, 10/20, 10/25, 12/25, 15/30mm
Cross hole 6/10/20, 6/10/25, 8/12/25, 12/20/30mm
Irregular hole 8/15/20
Oblong hole 4-14mm