It usually dries and penetrates slowly but you can add mineral spirits or turpentine to it if you want to quicken the drying and penetrating time. Keep in mind that many finishes will become safe to use on dishes if they are properly applied and have enough time to cure completely. Applying Tung Oil: As with any traditional product that has been used for many years, there are many different opinions on how to apply tung oil, this is just how I did it. Apply a small amount of oil to the cloth then apply by rubbing along the grain of the wood. True tung oil comes from the nuts of a tree in China--and some other parts of the world. He showed me an article in Popular Woodworking that demonstrated this. 5. A product that is a true tung oil will have a label that says either "pure" or "100%". Danish Oil. Tung oil hardens upon exposure to air (through polymerization), and the resulting coating is transparent and has a deep, almost wet look. Used mostly for finishing and protecting wood, after numerous coats, the finish can even look plastic-like. Danish oil is a super common finish among woodworkers, although it isn’t clearly defined. Question I am building a cabinet for a customer out of solid walnut and he told me he wanted an amber shellac topped off with Danish oil. Before: walnut panel is sanded to 220 and ready to be oiled. After: same walnut panel after 3 coats of tung oil varnish applied by wet-sanding. Use a clean, lint-free rag to apply tung oil. If it doesn't say that on the label, IT ISN'T TRUE TUNG OIL. Watco Danish Oil and tung oil are two types of wood-finishing oil with distinctly different properties. Both oils can achieve the result of a finish on your woodwork, but maintenance and durability as well as the amount of time invested in finishing the item is one big difference between tung oil and Danish oil. To some degree, this method is easier than using grain filler. Wet-Sanded Tung Oil Varnish: Augments Natural Contrast in Walnut + Fills Grain. Forget about all the other baloney and look for one of those two words if you want to use a true tung oil. Watco Danish Oil is a brand name of Danish 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. Tung oil is a non-toxic penetrating oil that is used in refinishing furniture. Tung Oil and Shellac on Walnut Tips on using this old-style combination, with a few concessions to modern conditions. It comes from a deciduous China tree that grows heart-shaped leaves and fruits called Tung fruit. March 26, 2007. Another way to fill grain is to simply use the dust from walnut mixed with oil. Important wood finish considerations . Raw walnut oil, like linseed oil and tung oil, possesses a fairly long drying time, so it’s not uncommon for walnut oil to be cut with mineral spirits (boiling) or heated (polymerized) to speed up the time it takes for the oil to cure. Mineral Oil: Beeswax: Walnut Oil: Carnauba Wax: Pure Tung Oil: Linseed Oil: Fractionated Coconut Oil: Shellac: Read on to find out why.