BURRELL INSULATION MATERIAL
The elongated fibers inside the centrifugal glass cotton roll felt can well segment the air and prevent the air from flowing, thus limiting the air convection. This is the insulation principle of the roll felt. Widely used in steel structure building internal wall insulation, roof insulation, and central air duct insulation.
Performance indicators of centrifugal glass wool blanket
|
Items |
Unit |
Indicators |
Standard |
|
Density |
kg/m3 |
10-80 |
GB/T 13350 |
|
Average fiber diameter |
um |
5~8 |
GB/T 13350 |
|
The moisture content |
% |
<1 |
GB/T 13350 |
|
Combustion performance |
|
Non-combustible level A |
GB/T 13350 |
|
Heat load shrinkage temperature |
°C |
250-400 |
GB/T 13350 |
|
Coefficient of thermal conductivity(25±1) °C\ (70±1) °C |
w/m.k |
0.034-0.056 |
GB/T 13350 |
|
Moisture absorption rate |
% |
<5 |
GB/T 13350 |
|
Hydrophobic rate |
% |
>98 |
GB/T 13350 |
|
Absorption coefficient |
|
Measurement of sound absorption in acoustic reverberation chamber |
GB/T 20247 |
|
Content of slag ball |
% |
<0.3 |
GB/T 13350 |
|
Working temperature |
°C |
-4-+120 |
GB/T 13350 |
