MDF is one of the four main categories of wood based panels – laminated boards, particle boards, fiber boards and oriental strand boards. These different types of boards are distinguished by the level of conversion of the wood raw material into veneers, particles or fibers. MDF is a type of fiberboard made from wood or other lignocellulosic materials, refined into fibers and reconstituted with a resin binder (glue) carried out at elevated temperatures. The raw wood material can be in almost any form or specie, almost any mixture such as low grade wood specie, branches, small diameter trees, and hardwood, softwood, and mill waste and forestry waste chips. As such, the recovery rate of the raw material is almost 100%.