Multi-material decorative board, the board body is mainly composed of lime, gypsum, cement and perlite, and there are fiber mesh cloth or non-woven fabric on both sides of the board body.
The perlite powder can also be replaced by wood sawdust. The weight ratio of various raw materials is lime: gypsum: cement: perlite=100:80-100:30-50:30-50. The above-mentioned raw materials are made by mixing, stirring, making paste, rolling and forming and drying. The invention has the advantages of high strength, light weight, strong adhesion, good heat preservation and sound insulation performance, moisture resistance and flame retardancy.