- Contact Person : Ms. Gao Sonya
- Company Name : Hubei Qingyang Green Building Material Co., Ltd.
- Tel : 86-717-3238606
- Fax : 86-717-3238606
- Address : Hubei,Yichang,Group Two, Xiongfeng Village, Yuquan Office, Dangyang City
- Country/Region : China
- Zip : 444100
difference with calcium silicate board
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A combination property contrast of glass magnesium board,Calcium silicate and gypsum board
Glass magnesium board | Calcium silicate board | Gypsum board | details | ||||
Fireproof performance | parameter | Level A1 | Level A1 | levelB | The gypsum is coming to carbonization at 200°C. | ||
evaluation | advanced | advanced | low | ||||
Waterproof performance | parameter | Nothing changed after Immersed in the water 100days | Nothing changed after Immersed in the water 30days | decomposed | Gypsum board can’t be waterproof. | ||
evaluation | advanced | advanced | low | ||||
Physical property | density | 0.9—1.3 g/cm2 | 1.3—1.5 g/cm2 | 1.2—1.3 g/cm2 | Mgo is light weight.casio3is heavy. | ||
strenth | Impact strength | ≥4.5KJ | ≥3.5KJ | ≤1KJ | |||
Bending strength | ≥20MPa | ≥14MPa | ≤9MPa | ||||
Thermal conductive | 0.64W/m2(W/m2·k) | 0.53W/m2(W/m2·k) | 0.61W/m2(W/m2·k) | All the boards are the same. | |||
expansion coefficient | 2.6×10-7MM/C(MM/K) | 7.5×10-7MM/C(MM/K) | 6×10-7MM/C(MM/K) | ||||
evaluation | advanced | advanced | medium | ||||
Dimension deviation | evaluation | advanced | advanced | advanced |
| ||
plasticity | parameter | Can be covered with paper cloth, wood aluminum and tile etc. | Can be covered with paper cloth, wood aluminum and tile etc. | Can’t be painted or laminated | |||
evaluation | advanced | advanced | low | ||||
construction | parameter | Can be deal with pneumatic tackers and screws,wall paper knife. | Only screws and saws | Only screws | Mgo board can be used with three kinds of screws. | ||
evaluation | advanced | medium | medium | ||||
environment-protection | parameter | No-toxic | With asbestos | With powder | |||
evaluation | advanced | low | medium | ||||
Cost perfomance | paramete | Medium cost | High cost | Low cost | |||
evaluation | advanced | low | advanced | ||||
difference with calcium silicate board
