Tung oil applied fairly thickly (the oil will smooth itself into a glass-like coating) and allowed to dry for two to three days. Rags soaked with tung oil can spontaneously combust (burst into flame). Tung oil Tung oil or China wood oil is a drying oil obtained by pressing the seed from the nut of the tung tree ("Vernicia fordii"). Tung oil hardens upon exposure to air, and the resulting coating is transparent and has a deep, almost wet look. Used mostly for finishing / protecting wood, after numerous coats the finish can even look plastic-like. Related drying oils include linseed, safflower,
Highland Park Manufacturing Plant and Cotton Oil Complex Highland Park Manufacturing Plant and Cotton Oil Complex Highland Park Manufacturing Plant and Cotton Oil Complex is a historic industrial complex and national historic district located at Rock Hill, South Carolina. It encompasses three contributing building and two contributing structures in Rock Hill. The complex includes the Highland Park Manufacturing Plant (1888–89, 1907), the Highland Park Cotton Oil Mill (1902), and the Highland Park Cotton Oil Mill Office (1902). They are the surviving buildings of a larger complex, including a gin and seed house, the rest of which have been demolished. Surrounding the original mill are portions of the mill