The fire door core board adopts expanded perlite or magnesium oxide as leading materials, mixed with non-organic high strength adhesives and chemical additives proportionally. Then being processed via a full set of processing procedures, the ready-to-use products are made. The expanded perlite adopted is natural perlite ore and being heated under 1300°c to achieve instant expansion and the formation is hollowed cellular granulocyte. Therefore, MgO perlite foam fire door core board is a sort of natural and environmental product. The whole processing of MgO perlite foam fire door core board is under stringent and even rigorous supervision from raw materials sourcing to finished products. The fire door core board reaches fireproof Grade A1 according to National Fireproof New Standard with steel or wooden door.
Fire door core board advantages :
Size of fire door core board :
Test data of fire door core board
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