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Polystyrene sandwich calcium silicate board is a new type board with many advantages compared to ordinary gypsum board; the main differences are shown as follows:Sandwich formsPolystyrene sandwich, perlite sandwich compressive strength increased by 30%StructureCombining the latest technology of bonding with the calcium silicate board and polystyrene sandwich as a whole, greatly improving impact and compressive strengthInstallation PatternAll components as a whole board;Each panel is firmly connected by slot joint; Quick and easy installation.Disassembly FeaturesFlexible combination;Removable installation; Repeat usePhysical PropertiesFor board of 100mm thickness, air acoustic noise limit is 45 dB; Fire resistance over 1.5 hJoint PerformanceSlot joint; Stress-release ;Not cracking jointsPerformanceCalcium silicate board as the external wall is applicable for tiles, paint and other decorations.