The multi-material decorative board is composed of a decorative board body and a surface protection material, and is characterized in that the decorative body is mainly composed of lime, gypsum, water mixture and perlite. The specifications and weight ratios of the raw materials are as follows:
Raw material name specification weight part lime gypsum cement perlite whiteness 80-90 degree fineness 150-250 mesh moisture 2-5% commercial industrial grade 325-425# fineness 40-60 mesh 30-50 decorative board has both sides Fiber mesh cloth or non-woven cloth, the above-mentioned raw materials are made by mixing, stirring, making paste, rolling and forming and drying.