Products

Fireproofing door core board is a kind of calcium silicate board whichis also a kind of inorganic board with stable physical and chemicalperformance . It has many excellent features , such as high refractorytemperature , low thermal conductivity , good insulation and sound-proofeffect , low density , high strength , not deforming after longtime working , canbe arbitrary processed , asbestos free , toxic or harmful gases free under hightemperature , no smoke diffusion and so on . Thus , it is very suitable for fireproofing door core material , and is a kind of green building material . This kind of core material has been widely used in manykinds of buildings as middle and high grade fireproofing door core material . The fire resistance limit could be up to 90 minutes , oreven up to more than 120 minutes