Has anyone else here tried Behlen Master Gel? Stew Mac used to sell it, advertised that it was "perfect for small jobs", but it has been years since they carried it. It is still available on various Web sites though. Behlen says it is a "urethane" product, but to me it feels very oily. There is definitely some kind of oil carrier in there I think. What kind of oil, they aren't saying. Solvent as well- package does say "contains petroleum distillates". I wonder if there are other resins besides urethane. It dries very hard. Comes in a plastic squeeze bottle, about the consistency of honey, amber in color, wipes on very easily, self levels, dries hard, looks nice, You can build up layers with only OOOO steel wool in between coats. The "gloss" is more of a subdued semi-gloss. To be the results look a lot like Tru-Oil. From one bottle I have finished a mountain dulcimer, a Stew Mac Campfire, and done 2 yard sale restorations. Everything looks great and sounds great. I think it's wonderful stuff! Its easy to use, gives great looking results, and is essentially goof proof. Is there any reason it should not be considered for something higher level, like an IV build? What am I missing? I know some say urethane is a tone killer but I haven't found that to be true on the admittedly simpler instruments I've used it on. And lots of people use Tru-Oil. Doesn't that also have some kind of synthetic resin in it?