Jgr327 Posted February 20, 2018 Report Share Posted February 20, 2018 I’m applying Tung Oil on dark walnut. Sanded to 150 grit. Applied the oil, let sit for 20 mins. Wiped excess off. A day later when it dried I rubbed my finder on it and there is a waxy film. I’m able to buff the film off but it’s a pain. I’m going for a food safe finish on serving boards. Am I doing something wrong? Need some help. Quote Link to comment Share on other sites More sharing options...
wtnhighlander Posted February 20, 2018 Report Share Posted February 20, 2018 What os the brand of 'tung oil' you used? Unfortunately there are many products callung themselves 'tung oil finish' that are no such thing. Quote Link to comment Share on other sites More sharing options...
Jgr327 Posted February 20, 2018 Author Report Share Posted February 20, 2018 Lee Valley 100% pure Tung Oil Quote Link to comment Share on other sites More sharing options...
Tpt life Posted February 21, 2018 Report Share Posted February 21, 2018 A day does not seem enough for a pure oil. 1 Quote Link to comment Share on other sites More sharing options...
Jgr327 Posted February 21, 2018 Author Report Share Posted February 21, 2018 But it was turning a white chalk look in spots Quote Link to comment Share on other sites More sharing options...
wtnhighlander Posted February 21, 2018 Report Share Posted February 21, 2018 How old was the product? I agree with @C Shaffer , one day is a pretty short cure time for a pure oil product. Makes me suspect the container may be contaminated or perhaps past its shelf life. No idea what shelf life should be for that stuff, though. Quote Link to comment Share on other sites More sharing options...
Woodenskye Posted February 21, 2018 Report Share Posted February 21, 2018 My thoughts, take em for what they are worth. 1) don't think you sanded high enough 2) did you vacuum or use tack cloth after sanding? 3) did you wait for dust to settle after sanding? 4) agree with the other guys as well. Quote Link to comment Share on other sites More sharing options...
Jgr327 Posted February 21, 2018 Author Report Share Posted February 21, 2018 brand new product. Vacuumed after sanding applied later that day sanded to 150grit, how high should I go? did not use a tack cloth garage is around 13-15 deg i still have to do the bottoms, one of the boards was sitting for 5 days and did the same. Quote Link to comment Share on other sites More sharing options...
Tpt life Posted February 21, 2018 Report Share Posted February 21, 2018 Is 13-15 C° or F°? Quote Link to comment Share on other sites More sharing options...
Jgr327 Posted February 21, 2018 Author Report Share Posted February 21, 2018 Celcius Quote Link to comment Share on other sites More sharing options...
Woodenskye Posted February 21, 2018 Report Share Posted February 21, 2018 I would sand to 180 or 220, but you should have a raking light to see if you got the scratches out. What I have done is after I have sanded and vacuumed the piece, let the dust settle overnight and then wipe down with mineral spirits, then move to finish. Quote Link to comment Share on other sites More sharing options...
Tpt life Posted February 21, 2018 Report Share Posted February 21, 2018 Did you trim that board or is that a yard end? Is there any chance you have residual end grain check prevention sealer still in the board? Quote Link to comment Share on other sites More sharing options...
Pete Staehling Posted February 21, 2018 Report Share Posted February 21, 2018 I have never seen that with the oil I use. Is it possible that it came from dust settling on wet excess oil? Maybe try wiping off the excess more thoroughly at application time and again in the next hour or two? FWIW, I use Gulf Coast Tung Oil. He is a local grower and producer of tung oil trying to revive the production of tung oil here on the gulf coast. The product is top quality. http://www.gulfcoasttungoil.com/ Quote Link to comment Share on other sites More sharing options...
TerryMcK Posted February 21, 2018 Report Share Posted February 21, 2018 This is pretty common with real/unpolymerized tung oil. It takes forever to cure and walnut can have really open pores. The tung oil weeps out of the pores long after the oil on the surface has cured. It sits on the surface partially cured and sticky, until it cures. The solution is to 1) babysit your piece and wipe off the oil 2) keep building more coats, sanding (220 or 320) in between. Eventually you build enough finish that the pores are sealed and the surface oil will cure. 3) thin the oil with mineral spirits. The won't speed curing (contrary to popular belief) but it will force you to use thinner coats, which do cure faster or 4) switch to a polymerized tung oil. This is a tung oil that had been heat treated, so it cures faster or 5) just use mineral oil, since he is making serving boards. Mineral oil is safe for food and easy to apply. Because it doesn't cure, it doesn't weep like tung oil (the weeping is due to heat and expansion that result from curing) 2 Quote Link to comment Share on other sites More sharing options...
AceHoleInOne Posted February 21, 2018 Report Share Posted February 21, 2018 Would it be correct to assume you flooded the surface with oil and let it sit for the 20min? I believe the wood is saturated with oil and is drying on the surface and the oil is pushing out while trying to dry. When you put a lot of hand cream on what happens? It takes forever to work it in the hands and dry. Do light coats making sure between each coat it has dried. I would strip the piece with a good chemical stripper using steel wool scrubbing with the grain to pull that oil out. Wash the wood good with mineral spirits. Let dry for 7 to 10 days. Start over and go easey build up. -Ace- 1 Quote Link to comment Share on other sites More sharing options...
Jgr327 Posted February 22, 2018 Author Report Share Posted February 22, 2018 Thanks for the help!! Quote Link to comment Share on other sites More sharing options...
Mycrossover Posted May 20, 2018 Report Share Posted May 20, 2018 That converts to 55.4 to 59 F. I doubt if anybody would be applying a finish in below freezing 13 to 15 F. That is no teperature to even be in unless you live in International Falls, Minnesota, where they call that spring. It strikes me that 13 to 15 C is a bit cool for finishing. Is 13-15 C° or F°?Sent from my SM-G900V using Tapatalk Quote Link to comment Share on other sites More sharing options...
Tpt life Posted May 20, 2018 Report Share Posted May 20, 2018 4 hours ago, Mycrossover said: That converts to 55.4 to 59 F. I doubt if anybody would be applying a finish in below freezing 13 to 15 F. That is no teperature to even be in unless you live in International Falls, Minnesota, where they call that spring. It strikes me that 13 to 15 C is a bit cool for finishing. Sent from my SM-G900V using Tapatalk Doubt away, but we painted oil paints and performed other oiling operations at that range many times over at the paint store. If someone had that background and came to pure tongue without dryers in it, I was seeking to confirm that as it would guide the discussion in s different direction. It is always wise to ask rather than assuming. Quote Link to comment Share on other sites More sharing options...
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