Expanded Magnesium oxide Panel
Product Overview：
The panel is a new kind of A-class non-combustible insulation materials of wall. It was based on the inorganic adhesive material, glass beads and fire-retardant foam materials for light aggregate. And add a variety of polymer additive, after modification, the modifier in a pressure molding line, then through the late maintenance and cut.
By the national authoritative organization detect, the product fire rating is A1 level.
Product features：
1. This product is class A1 fireproof material, meet the demand of fire prevention of wall.
2. Thermal conductivity is 0.05-0.07W/(m·K). Heat preservation effect is good.
3. Density is 220-320kg/m³, low density, high strength.
4. Environmentally safe, non-toxic harmless, the service life is long.
5. Simple construction, less waste.
Performance：
Chart 1:
|
Item |
Unit |
Performance indicators |
Test Result |
|
Dry density |
Kg/m³ |
≤350 |
qualified |
|
Thermal conductivity |
W/(m·K) |
≤0.07 |
|
|
Compressive strength |
Mpa |
≥0.40 |
|
|
Tensile strength |
Mpa |
≥0.15 |
|
|
Water absorption |
% |
≤10.0 |
|
|
Drying shrinkage value |
mm/m |
≤0.80 |
|
|
Softening coefficient |
- |
≥0.80 |
|
|
Combustion performance |
- |
No less than grade A2 |
Chart 2:
|
Item |
Unit |
Performance indicators |
Test Result |
|
|
Water absorption |
kg/㎡ |
≤0.5kg/㎡ after 1hour’s soak |
qualified |
|
|
Impact resistance |
P type |
≥3J |
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|
Q type |
≥10J |
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|
Resistance to freezing and thawing |
No empty drum, fall off, no water seepage after 30 times cycle. tensile adhesive strength≥0.1Mpa |
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|
Protective layer of water vapour permeability resistance |
≥0.85g(m³·h) |
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|
The plaster layer imperviousness |
Impervious for 2 hours |
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|
Weather resistance |
After 80 times high temperature - pour water cycle and 5 times heating - refrigeration cycle, no crack , no empty drum, no blistering, no peeling phenomenon of the surface. Tensile adhesive strength is 0.1Mpa, damaging parts is located in the thermal insulation layer. |
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