fireproof door core

Fire door core a.2100*900*30-70mm b.firelimit:30-120mins c.Density:280-300kg/m3 d.made of expanded perlite 1. Production Introduction Perlite fire door core consists of Magnesia sodium chloride and cinder powder. The burning behaviour of this product is classified as A1,non-combustible rate, in accodance with GB 8624-2006,classification on burning behaviour for building materials. Smoke behaviour is classified as non-toxic AQ1(safe rate) in accordance with GB/T 20285-2006. It is non hazardous,light,easy to install, fireproof,heat insulation and preservation. Mainly used as core of wooden fire door and steel fire door. We also can produce fireproof board with pattern according to the model our customers provide. 2. Main performance Density:230-250kg/m3 Single point suspension power>1200N Compressive strength:4(Mpa) Thermal conductivity =0.13(W/M.K) S=2.75W(M2.K) Moisture content(%)<7 Wet expansion rate(%)<0.25 Fireproof limit: >3.23h Fireproof temperature:1200c Sound-absorption coefficient:0.03-0.8 3. product specification 900mm*2100mm*thickness It could be adjusted as customers’request