Features: Material: mineral fiber sound insulation board Surface: a variety of surface patterns available Coating: PVDA Color: white Density: 350 to 420kg/m Fiber content: >=90% Fire performance: meet CNS6532 Class 1 Product content: mineral fiber Thermal conductivity: <=0.065W/mK Bending strength: >250N Noise reduction coefficient: NRC 0.4 to 0.6 depending on the pattern and the thickness Water content: <=3% Light reflectivity: >=85% Mold resistance No asbestos No formaldehyde Dimensions: 595 x 595mm or 600 x 600mm, 600 x 1200mm Thickness: 7.5, 8, 9, 10, 12, 14, 15mm