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Oct 13, 2017
Waterproof gypsum board refers to the slab in the United States under the ASTM standard for waterproofing test, the water absorption rate of 5%, that can be used for large areas of humidity, such as the bathroom, shower and kitchen, the board is in the gypsum core Material to add a quantitative waterproofing agent, so that the plaster itself has a certain waterproof performance. In addition, gypsum board paper is also waterproof, so this is a better use of a wider range of plates. But this board can not be directly exposed to the damp environment, nor direct water immersion for a long time.
Gypsum core and face paper are all moisture-proof treatment, adding silicone oil. Moisture treatment principle for the package principle, silicone oil wrapped in gypsum molecules.
Has a high water resistance, surface water absorption ≤ 160g / m2, water absorption rate of about 5%.