vermiculite board 1 material:silver vermiculite 2 insulating temp:1100 3 size:2440x1220mm 2100x900mm vermiculite board 1 Product infomation Material xinjiang silver expanded vermiculite Vermiculite size 0.3-1mm,1-3mm,2-4mm Colour silver Common size 2440x1220mm, 2100x900mm,1000x610mm customized sizes are available Thickness 20-50mm Packing stong wooden pallet Delivery time 20days 2.Technical data Items Unit BOR-170 BOR-220 BOR-270 Bulk Density Kg/m3 170(±10%) 220(±10%) 270(±10%) Pressure Strength MPa ≥0.40 ≥0.50 ≥0.60 Flexural Strength MPa ≥0.30 ≥0.35 ≥0.40 Thermal Conductive W/m.k ≤0.048 +0.00011t ≤0.050 +0.00011t ≤0.056 +0.00011t Temp. limit degrees 1000 1050 1050 Linear Shrinkage % ≤1.50 (1000,3hrs) ≤1.50 (1000,3hrs) ≤1.50 (1000,3hrs)