1. Excellent fireproof performance: The production process, raw materials (non-flammable A1 grade), formula and combination method used by magnesium oxysulfide sandwich color steel plate make it have good fireproof performance. Tests show that it has a fire resistance of more than 1200℃. The fire resistance time of 50mm thick magnesium oxysulfide sandwich color steel plate is ≧1H, and the fire resistance time of 75mm thick plate is ≧2H. The fire resistance time of 100mm thick plate is ≧3H. The magnesium oxysulfide core material has passed the test of the National Fireproof Building Materials Quality Supervision and Inspection Center, and the magnesium oxysulfide sandwich color steel plate meets the requirements of the fireproof standards GB8624-2006, GB/T20285-2006, and GB/T5464-2010.

2. Thermal insulation performance: The thermal insulation performance of magnesium oxysulfide sandwich color steel plate is based on the thermal conductivity of magnesium oxysulfide = 0.055W/m.K, and is calculated based on the thickness of the magnesium oxysulfide core material in the corresponding proportion.

3. Waterproof and moisture-proof features. The water absorption rate of magnesium oxysulfide sandwich color steel plate is ≤0.8%. After absorbing water, the magnesium oxysulfide core plate has a certain water permeability, will not deform irregularly, and will not produce chemical reactions, and has strong stability.

4. The core plate has high adhesion to the color-coated steel plate (no degumming). The magnesium oxysulfide core material of the magnesium oxysulfide sandwich color steel plate is connected to the color-coated steel plate in a strip-type manner, which has good independent adhesion, thus solving the problem of degumming caused by the composite with the steel plate in the form of a whole plate in the current market.

5. Sound insulation performance; the magnesium oxysulfide core material itself has a certain elasticity and is an airtight solid material, so it has a good sound insulation effect.

6. High strength Product parameters Upper/lower steel plate thickness 0.4----0.8mm color-coated steel plate. Core material: magnesium oxysulfide bulk density 220----280kg/m3. Thickness 50mm----200mm. Tongue-and-groove effective width: 1150mm, no length limit. Board surface protection: covered with protective film.