They can be found raw and with layers of melamine(like melamine MDF), so their uses are similar to those of chipboard. However, a differential to highlight is that they are an excellent support for the application of finishes (varnishes, enamels, lacquers …), since their texture, besides being smoother, allows sanding. Although these fiber boards are known as MDF or DM (medium density), these acronyms only refer to an approximate density of the ordinary MDF of 650-700 kg / m3. If the density is higher, the logic is to talk about HDF (high density fiberboard), and if less, low density.