Charlie, Here's one guys epinion.
I can recommend the following commercial products on the basis of personal experience. There may be others in the marketplace that just as good, but I have yet to find them.
* Daly's Sea-Fin Teak Oil® is a Tung Oil finish that is widely available in the Northwest. In recent years their distribution has increased, so it may be available in other areas. In my opinion, it is the best of the commercial wipe-on products. It is easy to get a good finish when the directions printed on the label are followed.
* Waterlox® is a nationally available Tung Oil product that is similar to Sea-Fin. It is generally available only through the mail-order catalogs. It is available as either the "Original" or as a "Marine" finish. Other than the "Marine" costing $10 more per gallon, I have never found any difference between them. Buy the "Original" because it is cheaper.
* Gillespie's Tung Oil Finish® is an excellent Tung Oil finish that is not quite as good (personal opinion) as Sea-Fin or Waterlox, but it is usually available at most paint specialty stores, Home Depot, Lowe's, and similar retailers. stores.
* Hope's Tung Oil Finish® is an excellent product that I have not used for several years because it is difficult to find, and when I have, the stock was very old. If you can locate fresh stock, try it. You will be pleased with the results.
* Watco® Teak Oil Finish, in the can with the blue label. While it is a Linseed Oil finish with UV inhibitors added, its finishing properties are considerably different from the more familiar Watco Danish Oil in the can with the brown label. If you have sworn-off on Watco® products because of things you have heard, or have had bad experiences with them, then try this one. I think that you will like it. Even the Danish Oil has improved since ownership by Flecto has returned it to its original formula.
Also, DuraSeal can also be used as an oil only finishing system.
http://www.duraseal.com/sections/produc ... n-fini.htm