NEW! Faster Search Option
I found out recently that I can get pure heat-treated tung oil here for about $20,00 U.S. per gallon. When I opened the can it smelled nutty, somewhat rancid, and had the consistancy of of a very thick maple syrup.
To use it I thinned it 1-1 with paint thinner, wiped it on till the surface was as soaked as I could get it, then wiped it off getting it as dry as I could. Waited 24 hrs and repeated. Lovely stuff. Really "pops" the grain on the ceder. A nice amber tint to it too. In fact I like it so much, that I sanded off the lacquer finish I had done on a few recent pieces to re-do them with the tung.
So far, I have figured out that wiping off the excess as soon as I feel the coat is wet and even enough leaves less "gummy-ness" than coming back to wipe after half an hour as some places suggest. Also, figured out that exposing it to sunlight as it cures speeds the process up.
Now for my questions:
1. How do I get the most "depth" and beauty out of this finish?
2. I am considering wet sanding with 600 grit once it seems fully hard, then re-applying another coat. Good idea, or not?
3. Once it is finished I'm considering polishing it with a buffing compound a piano tuner gave me. Then applying a coat of piano wax. Good idea or not?
4. For durability, would a top coat of sprayed on varnish be a good idea or not?
Yes. I realize that semanticly once I added the paint thinner to thin it it was no longer "pure" tung oil, but the thinner evaporates, and makes it much easier to apply.
Any suggestions for getting the most out of an oil finish would be appreciated.