Wood flour is commonly used as a filler in thermosetting resins such as bakelite, and in linoleum floor coverings.  Wood flour is also the main ingredient in wood/plastic composite building products such as decks and roofs.  Prior to 1920, wood flour was used as the filler in ¼-inch thick Edison Diamond Discs.
Wood flour has found a use in plugging small through-wall holes in leaking main condenser (heat exchanger) tubes at electrical power generating stations via injecting small quantities of the wood flour into the cooling water supply lines.  Some of the injected wood flour clogs the small holes while the remainder exits the station in a relatively environmentally benign fashion.
Because of its adsorbent properties it has been used as a cleaning agent for removing grease or oil in various occupations. It has also been noted for its ability to remove lead contamination from water.
Wood flour can be used as a binder in grain filler compounds.