Production Technique: Vacuum-molded aluminum silicate fire-stop board are fine made with aluminum silicate bulk as row material by process of water washing for removing impurity, pressurizing, add non-pollution adhesive, molding, dehydrating and curing in curing chamber. No harmful bonding agent added in the process of production, there will be no nol, formaldehyde and other harmful gas to escape, with lower ball slag content, more white appearance and better insulation performance. Application: