перлит ядро ​​двери

The third generation expanded perlite door core Product performance Environment friendly, natural, non pollution (expanded perlite is natural expanded perlite sand that expanded instantaneously under temperature higher than 1300 centigrade, forming globules of alveolate structure);Fire proof(absolutely non-combustible),water repellent, anti-aging and anti-corrosion;Light weight, heat insulation, heat preserving, sound absorbing;Easily hanged, and can be cut sawed and planed.Application of products Mainly applied to steel fire proof wall, fill-ups in wooden fire proof wall; Technical parameters of products Density:260-380kg/m3Rupture strength≥0.6MPaCompressive strength≥1.0MPaThermal conductivity≤0.087W/(m.k)Moisture content≤10Wet expansion rate≤0.25Fire tolerant limit0.6-2 hourFire tolerant temperature1300 °CSound-absorption coefficient0.3-0.8Size 600x900,2100x900(20,30,40,50,60,80,100,120)mm;or designed and manufactured on customer’s requirements.