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--->Moisture/Waterproof Gypsum Board
Waterproof plasterard Waterproof gypsum board, also known as green gypsum board or moisture proof, is a building material used for walls and ceilings in areas where moisture may exist, such as bathrooms, kitchen and laundry rooms.
Waterproof gypsum board is made by adding a layer of moisture-proof material to the core of the standard gypsum board during the manufacturing process. This moisture-proof material is usually fiberglass mats or specially treated paper.
Waterproof gypsum board is designed to resist the growth of mold and can withstand moisture exposure without deterioration. However, its design is not completely waterproof and should not be used in areas in direct contact with water, such as a shower.
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 |