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防火特殊人造板是用两张以上经过水玻璃浸渍的石棉纸,胶贴在胶合板、刨花板和软质纤维板的表面上压制而成。在此石棉纸贴面的上面,也可以再涂上一层防火涂料、耐水涂料以及粘贴装饰纸、铝箔等,这样就更能增强防火和耐火性能。防火特殊人造板使用的水玻璃不限,例如水玻璃1号-4号、偏硅酸钠、钾水玻璃等都能使用。为了提高胶合强度也可以在水玻璃内加入硅酸钙、硅酸镁、羧甲基纤维素和甲基纤维素等。此外,作为增量剂,可加入白碳、碳酸钙、粘土等。为了提高耐水性也可添加金属氧化物、金属氢氧化物、缩合磷酸金属盐、硼
Fire-resistant special wood-based panels are made of asbestos paper impregnated with water glass and pressed on the surface of plywood, particle board and soft fibreboard. In this asbestos paper veneer above, but also can be coated with a layer of fire retardant coating, water-resistant coating and paste decorative paper, aluminum foil, etc., so as to enhance fire and fire performance. Water-based fire-resistant special artificial board is not limited, such as water glass No. 1 -4, sodium metasilicate, potassium water glass can be used. In order to improve the bonding strength can also be added to the water glass calcium silicate, magnesium silicate, carboxymethyl cellulose and methyl cellulose. In addition, as an extender, white carbon, calcium carbonate, clay and the like may be added. In order to improve water resistance, metal oxides, metal hydroxides, condensed metal phosphates, boron