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.