MATERIALS WE FABRICATE

M.D.F. (Medium Density Fibreboards)

Because of its availability in a wide range of thicknesses and the ability to be machined and finished to a high standard, dry process fibreboards have been accepted in a wide range of applications both in construction and also furniture, where in both cases it has substituted solid timber and also other wood-based panels in particular applications.

A typical process involves reducing wood down to small chips, which are then thermally softened and mechanically refined into fibres, which are then mixed with a synthetic resin binder. The resonated fibres are dried and then formed into a mattress ready for pressing.

The mattress is pressed between heated polished press plates to the desired thickness. For thick boards more than one mattress may be ‘piggy backed’ together. MDF manufactured in Europe for use in construction must be specified in accordance with European Standards. The UK versions of these are BS EN 622 Part 1 and BS EN 622 Part 5. Standard forms of MDF have densities as follows: