From efforts to utilize waste wood fiber more fully from the lumber industry has come a substrate now widely used for interior trim parts in automobiles. Hardboard results from the separation of wood fibers, formation of the fiber into a mat, and subsequent consolidation with heated presses. Humidification of the pressed board followed by trimming and edging complete the manufacturing process of hardboard. Environmental improvement is a continuous program in the hardboard industry and has resulted in the development of a number of salable byproducts from mill residue.
