Formby's Low Gloss Tung Oil Finish
The project I'd (finally) completed was small, and I'd made an unusual choice of woods: half clean, yellow-blond poplar and the other half handsome, chocolaty walnut. The choice of woods – in particular the colors -- was the point of the piece, so when it came time for finishing I wanted something that would accentuate the wood's texture without overpowering its natural colors. My Dad liked tung oil for subtle finishes, so I followed his lead by choosing some Formby's Traditional Tung Oil Finish. Although Formby's is now a member of the MinWax family, Homer's bespectacled face still decorates the label and, according to MinWax, the formula is unchanged.
The low-gloss formula I used is 70% aliphatic hydrocarbons (i.e., mineral spirits), and the rest is a proprietary mixture of oils and resins of tung oil, pressed from the nuts of a tree native to east Asia. Formby's Tung Oil is intended for use as a hand-rubbed finish, applied with lint-free cloth in a circular motion, much like waxing a car. After the finish dries -- some twelve hours, unless the humidity is high -- you apply another coat. I prefer to soften the grain with a light application of steel wool between coats. Repeat until the finish is satisfactory.