Tung oil is also known as Chinawood oil. It is extracted from the nuts of the Tung tree. It is a fast drying oil that dries to a hard tough moisture resistant film. Its only drawback is that when it dries, the film is wrinkled. Our Tung oil is a refined grade that is light yellow in color and does not contain any added solvents or driers. When diluted with mineral spirits to aid penetration and application, it can be used as a non-toxic finish for salad bowls, butcher blocks, etc.