PB P4 Fire X is a structural board with high density and fine sanded surface, suitable for coating or laminate, to be applied in dry contiditions. The board, with red pigment inner layer, presents excellent mechanical characteristics and a particularly adapted core to receive screws and fixation systems. It is an easy to mill and a low formaldehyde emission product (class 01). Regarding reaction to fire and according to EN 13986 is classified as B-s1, d0 (Euroclass definition by EN 13501-1).