High-density MDF with hard, fine sanded surface and particularly screwable core, MUF glued. The board is subject to minimal expansion and swelling in conditions of high humidity. Suitable for load-bearing applications in humid conditions, Umidax® can be refined with paper, melamine, veneer, laminate or lacquer. Umidax is made of 100 % softwood and has no coarse fibres in the surface. The board is very easy to mill and has low formaldehyde emission (E1 class).