ABSTRACT

Wood is an excelJent material to absorb and reflect light. This physical interaction produces wood whose color may range from almost white, as in the sapwood of many species. to almost black. as in the heartwood of black ebony. The color characteristics depend on the chemical components of wood that interact with light. Hence. the reaction of wood components to light. heat. and chemicals will change the color of wood. Extensive studies and observations have shown that most. if not all. wood species of commercial importance, and in particular those used for furniture, paneling. and decks. are prone to discolor with age. Discoloration occurs both indoors and outdoors. Many factors and elements participate in the discoloration of wood. Ln this chapter. the major factors playing a role in discoloration. as well as the methods of removing and avoiding discoloration. are discussed.