between the pressing surfaces was adjusted to 10 mm for one minute then the mold was released and the finished board removed 1 760 g of medium fine wood chips were placed in a 130 liter plough blade mixer with a knife head and sprayed with 520 g of water then 520 g of cationic wheat starch were added and mixed for one more minute of this mixture 50 was removed and uniformly sprinkled on a metal sheet in a 420 u00d7 420 mm inner size frame the bulk was compressed at a force of 700n for a short time the thus obtained cake was covered with a further metal sheet and placed in a heatable press the cake was compressed at a press temperature of 170 u00b0 c for two seconds to a level of 10 mm the mold pressure was maintained at 0 1n mm 2 for 20 minutes the distance between the pressing surfaces was adjusted to 10 mm for one minute then the mold was released and the finished board removed 1 760 g of fine wood chips were placed in a 130 liter plough blade mixer with a knife head and sprayed with 520 g of water then 520 g of potato starch were added and mixed for one more minute 1 760 g of coarse wood chips were placed in a 130 liter plough blade mixer with a knife head and sprayed with 520 g of water then 520 g of potato starch were added.