The majority of the "tung oil" products out there contain very little actual tung-oil, but are instead a combination of oil and polyurethane varnish. This is not a bad thing - pure tung oil provides very little protection and takes forever to dry. The waterlox product provides excellent protection and looks great. A cheaper alternative would be Minwax tung oil finish or Formby's tung oil finish. The Minwax has more oil in it than the Formby's - whether this is good or bad is subject to debate.