Fire proof gypsum board is a kind of high quality paper-faced plasterboard made with high purity gypsum core, vermiculite and glass fiber additive distributed in net shape. By adopting pink paper back under special fire proof treatment as protective tissue, it will greatly improve fire resistant property of plasterboard. So, it is particularly applicable to partition, elevation and stair passagewayof places with higher requirements of fire resistant property. Baier fireproof gypsum board completely conforms to china gb/t9775 standard with its stability over 20 min in case of fire .