Using desulfurized high-purity gypsum powder as main material, mixed with fire resistant materials and fire resistant fibers to make board core..
It made up of specially treated and crystal water gypsum material, which determines that at the beginning period when it meets fire, before the crystal water in the board core fully comes out and vapors up, the temperature at the board surface cannot exceed 140C. This good fire resistant property can obtain valuable time for people to evacuate. Meanwhile prolong the fireproof time. The paper-faced gypsum board release vapor when it is heated, so that it avoids the dangers of suffocating people due to breathing in poisonous gas from fire.