Gypsum board has been widely used in construction and paper-based gypsum board currently takes the most market. The surface of traditional paper-based gypsum board has the defects of easy to get damp, airtight, easy mycophenolate, and poor flatness. And after a certain period of time, the surface is prone to turn yellow, get deformation and get fracture, which leads to very poor perception. Furthermore, large-scale use of paste paper also caused waste of natural wood resources. 
In 2008, Changhai successfully developed the world’s advanced gypsum wall board covering-the coated fiberglass mat. The gypsum board surfaced with coated fiberglass mat is made by the technology of moisture resistant, which has the feature of the core gypsum and fiberglass reinforced covering. 
New gypsum wall board turns paperless, and eliminates the worry of humidity and mold for builders and homeowners. Also, the product has the highest level of fire-resistance and the ideal strength and moisture-resistant, which is welcomed by major manufacturers in roofing system production. The gypsum board surfaced with coated fiberglass mat is greatly over the bulky cement board and fiber cement board in moisture, strength and installation.
The company is currently one of the two companies capable of producing such coated fiberglass mat.