Medium density fiberboard (MDF)

Description

A common name for an engineered wood product made by combining wood fibers with an binder then forming into panels at high temperature and pressure. Medium density fiberboard (MDF) panels are constructed from an exterior-grade plywood core laminated on one or both surfaces with resin-treated fiberboard or paper (commonly called MDF). A thermosetting glue (such as a Phenolic resin) is used to adhered the MDF to the wood surface with heat and pressure. The fibrous laminate surface is smooth and opaque with resistance to scratches, peeling, cracking, and moisture. MDF boards are available in large sheets (4' x 8') in a variety of thicknesses, such as 3/8", 1/2", 5/8", 3/4" and 1". MDF's contain less adhesive than an MDO and is consider slightly weaker.

Synonyms and Related Terms

Medium-density fiberboard; MDF; Medex®; Medite®; Medite II®

Personal Risks

When cut, MDF boards produce a large quantity of dust.

Collecction Risks

MDF products emit formaldehyde and other volatile organic compounds.

Working Properties

MDF boards are consistent in strength and size. They may be glued, doweled, painted or laminated and are dimensionally stable. Low -grade MDF may swell and break when saturated with water. Unsealed MDF may warp or expand in Humid environments.

Sources Checked for Data in Record

• Wood Magazine: https://www.woodmagazine.com/wood-supplies/lumber/whats-the-difference-between-mdo-and-mdf

• External source or communication Comment: Contributed information from Charles Goodwin.

• Wikipedia: https://en.wikipedia.org/wiki/Medium-density_fibreboard