Foshan Huiju Decoration Material Co. Ltd.
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Ordinary Plaster Board is often called drywall, wallboard, or plasterboard. It differs from other panel-type building products, such as plywood, hardboard, and fiberboard, because of its noncombustible core and paper facers. When joints and fastener heads are covered with a joint compound system, gypsum wall board creates a continuous surface suitable for most types of interior decoration.
Ordinary gypsum plaster board appearance is ivory-colored surface with gray back. It is mainly made of construction gypsum with appropriate amount of lightweight materials, fiber reinforcement and additives, and glued to paper.
It has the characteristics of light weight and high strength, heat and sound insulation, etc.
1. Fire resistance
Since gypsum itself is a fire resistant material, gypsum plasterboard can also be fire resistant for up to four hours. The reason behind this is the presence of water in gypsum offerings. When water comes in contact with fire, it starts evaporating. It helps the board to form a protective layer which helps to prevent the fire from spreading over a period of time.
2. Non-combustible
When a gypsum board comes in contact with fire, it starts the process called calcination. Calcination is the process by which the board dehydrates, helping it to form an additional layer. It makes the wall non-combustible for several hours and always remains at room temperature.
3. Acoustic properties
Gypsum board has an inherent degree of acoustic insulation. These are more effective compared to conventional walls of the same thickness. This is because they contain sound interruptions and reduce reverberation.
For example, a plasterboard of around 60 mm is as effective as an 85 mm masonry wall in terms of sound insulation. Users can also choose to use acoustic gypsum board to further improve performance.
4. Thermal performance
Gypsum boards contain water of crystallization. They also contain cavities that allow the user to achieve the right balance between humidity and temperature. If you add fiberglass, it will further prevent fire as the fiberglass helps maintain the integrity of the board. The additional insulation acts as a vapor barrier and helps control humidity in the room.
| Item | Standard Value | Test Value | ||||
| Density (kg/m²) | — | Thickness | Regular | Fire Resistant | Water Resistant | |
| ≯ 9.5kg/m² | 9.5mm | 7.5 | 7.5 | 7.5 | ||
| ≯ 12.0kg/m² | 12mm | 9.5 | 9.5 | 11.5 | ||
| Flexural Strength(N) | Parallel | ≮ 360 | 9.5mm | 560 | ||
| ≮ 500 | 12mm | 700 | ||||
| Cross | ≮ 140 | 9.5mm | 180 | |||
| ≮ 160 | 12mm | 240 | ||||
| Surface Paper Sticking theCore Material | Unexposed | Unexposed | ||||
| Stability with Fire (Min) | Fire Resistant | ≮ 20 | / | / | ＞20 | / |
| Water Absorption (%) | Water Resistant | ≮ 10 | 9.5mm | / | / | 6.8 |
| 12mm | / | / | 4.2 | |||
| Radioactivity | Internal | IRa≤1.0 | ＜1.0 | |||
| External | Ir≤1.3 | ＜1.0 | ||||
| Note | Executive Standard : GB/T 9775-2008 | |||||
Common specifications: 9mm,9.5mm,12mm
Ordinary gypsum board sound insulation wall composed of double-layer separation type and hollow strip board has the same effect asthe brick wall of 24cm
Ordinary gypsum board has a wide range of applications
Used for hotel, restaurant, shopping mall, office, theater, studio, cinema and school and other buildings partition wall application, ceiling application.
