The fire door core boards produced by Shijiazhuang Chenxing Industrial Co., Ltd. are manufactured using expanded vermiculite and fire-resistant adhesive through hot pressing. They meet Class A1 combustion performance standards and Class ZA1 material smoke toxicity ratings. These cores are widely applicable in various fire doors.
The fireproof door core board produced by Chenxing Industry has the characteristic of high temperature (1200 ℃ for three hours) without powdering. This fireproof door core board can meet the requirement of not collapsing under water impact after burning the door for three hours. Our factory produces fireproof door cores with thicknesses of 38MM, 48MM, 50MM, 53MM, 58MM, 60MM, 68MM, etc. We can produce different thicknesses according to customer requirements.
The fire-resistant door core board is manufactured by uniformly blending inorganic mineral materials, high-temperature-resistant adhesives, and inorganic additives in specific proportions. The mixture is molded under pressure, undergoes low-temperature curing, and is dried at high temperatures to form the fire-resistant core. This core maintains its integrity without powdering or collapsing when subjected to 1200°C for three hours. Our factory produces fire-resistant door cores in various specifications according to customer requirements.
