Shijiazhuang Beihua Mineral Wool Ceiling Board

exceed concealed 1)      Material :mineral fiber sound insulation board 2)      Surface :a variety of surface patterns avaliable 3)      Coating :PVDA 4)      Color:white 5)      Density:280-450kg/m3 6)      Fiber content:???0 7)      Fiber perfomance :meet CNS6532 class1 8)      Product content :mineral fiber 9)      Themal conductivity:???.065Wmk 10)   Bending strength:250N 11)   Noise reduction voefficient :NRC 0.4-0.6 depending on the pattern and the thickness 12)   Water content:??? 13)   Light reflenctivity:???5 14)   Mold resistance 15)   No asbestos 16)   No formaldehyde 17)   Mini order :1*40 ft 18)   Payment terms:TT or LC at sight Physical Data Material :  wet-method composite mineral fiber Color:  white Burning characteristics:  Class B1 (GB 8624-1997) Surface Coating:  quality vinyl latex pain Light reflectance:  ???.80 NRC:  0.50-0.60 CAC:  35-39dB Installation Only commence when the building is watertight,dry,all wet trades completed and free from chemical fumes. Environmental conditions shall not exceed 40??and 80% RH. Recommended 2 pieces of metal stiffener glued diagonally to the back of 12mm ceiling board. All fixtures shall install independently and shall not supported from the suspension systems. Workability:Easy to cut with standard trimming knife.