6mm No More Ply is a pre-primed tile backer board which provides a flat, stable surface ready for floor tiling. It is ideal for floors which my be susceptible to deflection or lateral movement, such as expansion and contraction. Ideal for strengthening chipboard floors, floorboards or tongue and groove boarded floors.No More Ply is very easy to use, simply cut boards to size using the No More Ply scoring knife and then fix into position with Mega Strength adhesive and No More Ply screws.