These are the easiest finishes to apply: Wipe them on, allow them to penetrate the surface of the wood and wipe off the excess with a rag. Tung oil is paler in color and has better moisture resistance than linseed oil.īoth linseed and tung oils are penetrating finishes, which means they penetrate the fibers of the wood and harden. It also minimizes a tendency of tung oil to "frost" (dry to a whitish, matte appearance^^). The heat-treating process makes the oil a bit more durable and speeds up the drying time. Tung oil is available in a pure, unrefined form and in a heat-treated or polymerized form. Tung oil is derived from the nuts of trees that are native to Asia but have been cultivated in other parts of the world. For wood finishing, you should use only boiled linseed oil. Even though linseed oil that has actually been boiled is still available - it's called heat-treated or polymerized oil - most of the boiled linseed oil sold these days is raw oil that has been mixed with chemical additives to speed up the drying time. Finishers long ago discovered that by boiling the oil, the resulting product was thicker and dried more quickly. Unrefined, it's called raw linseed oil, which is rarely used on wood because it dries so slowly. Linseed oil is available in several forms. These true oils* change from a liquid to a solid through polymerization, a process that strengthens the cured finish. These finishes are called true oils* to distinguish them from other products hyped as oil finishes and to separate them from naturally nondrying or semidrying oils used in finishes, such as soybean oil. The true oils^ - Linseed oil and tung oil, the drying oils most often used in finishing, are readily available and relatively inexpensive. Its just not the same stuff, it gives a different finish, smells like a petrochemical product, and I don't care for the stuff. is a petrochemical based "varnish" with some tung oil in it. The garbage you buy at Lowes or Home Depot is not tung oil. Thats tung oil, or should I say REAL tung oil. No they're not the same, and even the "definition" of tung and danish oil varies all over the place.
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