High Quality Low Density Sponge Rubber Tube Made in China
Made in China NBR flexible high density foam insulation


Item |
Unit |
Specification |
Standard |
|
Density |
45 |
Kg/m³ |
≤95 |
GB/T6343 |
Flammability |
Oxygen index |
% |
≥32 |
GB/T2406 |
SDR |
—— |
≤75 |
GB/T8627 |
|
Conductivity factor |
Average temperature |
W/(m.k) |
GB/T10294 |
|
-20°C |
≤0.031 |
|||
0°C |
≤0.034 |
|||
40°C |
≤0.036 |
|||
|
Water vapor permeability |
Coefficient |
g/(m.s.pa) |
≤2.8*10-11 |
GB/T17146-1997 |
Factor |
—— |
≥7.0*10³ |
||
Water absorption ratio in vacuum |
% |
≤10 |
GB/T17794-2008 |
|
|
Dimension stability 105±3°C,7d |
% |
≤10 |
GB/T8811 |
|
Crack resistance |
N/cm |
≥2.5 |
GB/T10808 |
|
|
Compression resilience ratio Compression time 72h |
% |
≥70 |
GB/T6669-2001 |
|
|
Anti-ozone Ozone pressure 202mpa 200h |
—— |
Not cracking |
GB/T7762 |
|
|
Aging resistance 150h |
—— |
Slightly crumpling, no cracks, |
GB/T16259 |
|
Temperature |
°C |
-40°C——110°C |
GB/T17794 |
|

1). Low conductivity factor
2). Good fire-blocking
3). Closed pore foaming, good damp-proof property
4). Good pliability
5). Beautiful appearance, easy to install
6). Safe (neither stimulate the skin nor harm health), Excellent performance of acid-resisting and alkali-resisting.
More details at http://powercrown.en.china.cn/
If you are interested in our products, please feel free to contact us. Welcome to visit our factory any time you like!
For further query please contact:
Skype: supersale001
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