Vermiculite heat insulation board Characteristics: lightweight, fireproof, heat/sound insulation, heat retaining, damp proofing, moisture absorbing, environmental-friendly. Fields of application: fireproof doors, fireplace, furnace, boiler chimney, stove, electric heater, partition panel, ceiling, furniture, furnishing, platform for marine and vessel etc. Product description: Process temperature: 1100degrees centigrade Bending strength: 0.574 - 2.30MPa Density: 200kg/M3 - 1100kg/M3 Compression strength: 0.690~2.90MPa Thermal conductivity: Max. 0.020W/mK at 600 degrees centigrade Max.0.0128W/mK at 34.51 degrees centigrade The minimum thickness: 3mm The maximum thickness: 80mm The maximum width: 2110mm The maximum length: 2440mm According to customers'requirement