DESCRIPTION :
Rockwool is made from natural basalt ,with the high speed centrifuge machine to be synthetic fiber, and after add some special adhesive and dustproof oil, to be different specification of rockwool boards.
Detail specification:
| Technical items |
Technical standard |
Notice: |
Thermal Conductivity W/(mk) |
0.026-0.035 |
normal |
Drag content %（diameter）0.25 |
Below 10% |
GB11835-89 |
Combustibility |
CLASS A |
GB5464 |
Fiber diameter（µ） |
4-7 |
|
Working temperature（℃） |
-268-700 |
|
Acidity rate |
＞1.5 |
SiO2+Al2O3
CaO+MgO |
Water absorbion（%） |
＜5 |
|
Density tolerance（%） |
±10 |
GB11835-89 |
|
