Mats were hand formed in a 635 by 635 mm forming box through a layering process—face furnish–fiber layer–core furnish–fiber layer–face furnish. The lower face furnish was first uniformly spread in the forming box and pre pressed. The sprayed fiber mats were then evenly laid unto the face with 1 mm overlap along fiber edges. Next the resinated core particles were spread on the aligned fibers and prepressed. Afterwards the upper fiber layers were carefully placed unto the core furnish and evenly covered with the upper face furnish. The formed mat was prepressed and subsequently hot pressed at 140 ◦C for 8 min (including press closing time)in a Pathex press to a target board density of 620 kg/m3 and panel thickness of 12.7 mm