High temperature calcium silicate core for fireproof and sound insulation door is a kind of inorganic and non-combustible material with stable physical and chemical properties. The characteristics are high temperature resistance, low thermal conductivity, good performance of soundproof and insulation, lightweight and high special strength. It does not deform in normal temperature or moist air. Free from asbestos, is a kind of green building material, have not any irritant smoke when burning and high temperature. High temperature calcium silicate core for 30min, 60min and 90min fire rate wooden fire door and metal fire door. And had already got the 60min and 90min pair doors certificate of ITS Lab of North America.
For steel fire door Bulk Density: 260~320kg/m³; 	 Flexural Strength: 0.5Mpa	 Thermal Cond.: 0.07W/m. K	 Service temp.: 1300 centigrate	 Linear Shrinkage(1000C X 3h): ≤1.5%
For Wooden fire door	 Bulk Density: 280~360kg/m³; Flexural Strength: 0.6Mpa Thermal Cond.: 0.07W/m. K Service temp.: 1300 centigrate Linear Shrinkage(1000C X 3h): 1.5%
Standard size: 1050*850mm and 1000*500mm Thiciness: 30-50mm Our company could band to big size as customer requirement