Features: 1) Material: Mineral fiber sound insulation board 2) Surface: A variety of surface patterns available 3) Coating: PVDA 4) Color: White 5) Density: 350-420kg/m 6) Fiber content: >=90% 7) Fire performance: Meet CNS6532 Class 1 8) Product content: Mineral fiber 9) Thermal conductivity: <=0.065W/mK 10) Bending strength: >250N 11) Noise reduction coefficient: NRC 0.4 - 0.6 depending on the pattern And the thickness 12) Water content: <=3% 13) Light reflectivity: >=85% 14) Mold resistance 15) No Asbestos 16) No Formaldehyde 17) Dimensions: 595x595mm, 603 x 603mm, 600 x 1200mm 18) Thickness: 7mm, 7.5mm, 8mm, 9mm, 10mm, 12mm, 14mm, 15mm, 18mm, 20mm