Selected Properties of Commercial Medium-Density Fiberboard

Physical and mechanical properties of eight commercial medium-density fiberboards (MDF) were evaluated. Average density of the board types ranged from .72 to .95 g/cm3. MOE was very closely related to face density. There was no clear relationship between center density and IB or edge screwholding power. Neither thickness swelling nor linear expansion could be related to board density or density gradient. Compared with a selection of commercial particle- boards, the MDFs were considerably more resistant to deterioration of surface smoothness caused by water soaking and redrying. MDFs expanded less per volume of water absorbed than did a selection of commercial particleboards. MDF is well established in the furniture industry and related industries and is regarded as a superior core material.

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