hygiene waterproof acoustical wall panel Flame retardance: ASTM E-84 A NRC: 0.9 as per ASTM C 423 Edge detail: square, bevel hygiene waterproof acoustical wall panelDimension: 600mm*1200mm*25mm, 1200mm*2400mm*25mm 600mm*1200mm*50mm, 1200mm*2400mm*50mmFacing: FR polyester fabricCore material: high density fiberglassApplication: cinema, theater, conference room, hotel, hospital, auditorium