Fabric acoustic panel Flame retardance: ASTM E-84 A NRC value: 0.9 as per ASTM C423 Edge: square or beveled Fabric acoustical panelDimension: 600mm*1200mm*25mm, 1200mm*2400mm*25mm 600mm*1200mm*50mm, 1200mm*2400mm*50mmFacing: inherently FR polyester fabricPanel core: high density fiberglassEdge detail: square, beveledApplication: cinema, theater, conference center, gym, auditorium, hotel, etc.