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Perlite fire door core fireproof & insulationshort production cyclecompetitive priceMin.Order:500pieces Perlite fire door core 1.Features(perlite) 1)Light weight,fire retardant and self-extingnishing, thermal insulation, soundproof and sound absorption, mould proofing, dampproof, waterproof, shockproof, color weatherproof 2)Non-corrosive,allkali and acid resistance, non-toxic and chemical resistant 3)Tough, right with high impact strength, long performance life. 4)Non-waroing and stain proof 5)Easy to clean and maintain…. 6) You can perform with wood and metal processing tools:cutting/sawing/shearing/punching/drilling/nailing/milling/riveting/screwing/planning welding/painting/printing/photo mounting/laing/embossing/engraring/cleaning 7)Can be processed in heat-forming, heat bending and heat folding. 8)Can work as the substitution of wood. 2.Main Performance Density:230-280kg/m3 Anti-bend intensity≥8Mpa Compressive strength:0.035-0.076W/(m.k) Moisture content(%)≤10 Wet expansion rate(&)≤0.25 Fireproof temperature:1200c Sound-absorption coefficient:0.3-0.8 Product specification1900mm*950mm*thicknessIt could be adjusted at customers request