major tung oil problem

whymarkJuly 13, 2014

I've stripped a 150 yr old railway station bench and have put ~75 coats of pure tung oil on it. The last coat never dried. The seat dried and the back rail dried but the spindles supporting the back rail and the legs have never dried and are very sticky to the touch. I have tried heating with hot air (industrial hot air gun) and scraping and also tried scrubbing with a solvent. Nothing is working. I've been using tung oil for 20+ years with fantastic results but, this one has me stumped. Much obliged for any help on this one.

Thank you for reporting this comment. Undo
gregmills_gw

Did i read that correctly? 75 coats of oil? Why in the world would you use that many coats?

    Bookmark   July 20, 2014 at 5:45PM
Thank you for reporting this comment. Undo
whymark

LOL...actually it was more like 100!!....the first 10 or so were cut with a thinner to help it penetrate deeply into the wood....then I just kept on going trying to get the oil built up enough to provide that nice satin sheen of a finished project....the wood is cypress and soaks the oil up like a kleenex....I was ready to put some coats of Poly on to get the sheen when I applied the final coat of tung oil.....which never dried and brings me to this forum....my guess is that the oil had already started to polymerize in the can and the polymerization process was halted mid-stream....how do I strip it off???

    Bookmark   July 20, 2014 at 9:44PM
Thank you for reporting this comment. Undo
sombreuil_mongrel

Thing about tung oil, if you want the wood to have more sheen, you only can sand the wood to a finer grit, like 400 (and finish with synthetic steel wool) because the oil will only be as shiny as the wood, since by itself it dries matte finish.
I would start scrubbing it with lacquer thinner and try to get the sticky bit off, then proceed with your flat poly or whatever.
Casey

    Bookmark   July 21, 2014 at 10:23AM
Thank you for reporting this comment. Undo
whymark

Roger that Casey, I went through several packs of 400 grit sandpaper and 5-aught steel well getting this puppy ready for finishing. I'm using a highly refined aliphatic solvent with no headway on removing the sticky residue. Am looking for a more aromatic solvent like Methyl Ethyl Ketone. I'd really like to find something that will act as a catalyst and get the polymerization to complete and......I'm also searching for a pot of gold at the end of a rainbow!...with equal luck on both.

    Bookmark   July 21, 2014 at 11:36AM
Thank you for reporting this comment. Undo
annkh_nd

So the next-to-last coat dried, but not the last? How long did you wait between coats?

    Bookmark   July 21, 2014 at 4:33PM
Thank you for reporting this comment. Undo
sombreuil_mongrel

Get a gallon of Kutzit stripper and be done with it!
Casey

    Bookmark   July 21, 2014 at 5:15PM
Thank you for reporting this comment. Undo
whymark

It was several weeks between the second to last and the last coats..I was getting tired of the project. Will try the Kutzit stripper and, hopefully, be done with it!...thanks to all

    Bookmark   July 21, 2014 at 5:50PM
Sign Up to comment
More Discussions
Need help matching wood stain color
The molding in our kitchen was not completed when we...
candeelyn
Right size tip-out tray for kitchen sink cabinet
My kitchen sink cabinet is 24" wide. I want to...
africanboy
Gel stain on stair treads and handrail?
I have read many of the inspirational posts in the...
amt782
newbie veneer terminology question
My house has hollow slab doors veneered with luaun...
Fori is not pleased
Varnish cracking and brittle on table with Inlay work
The varnish or poly is looking so bad I want to redo...
bossyvossy
Sponsored Products
36" Maestro Series Stainless Steel Black Wall-Mount Range Hood - 600 CFM
Signature Hardware
Curved Canopy 36-inch Wall-mounted Range Hood
Overstock.com
Replacement Filter for 36" Maestro Series Stainless Steel Island Range Hood
Signature Hardware
Tile Edging: Schluter Roofing Supplies Ditra 54 sq. ft. 3 ft. 3 in. x 16 ft. 5
$83.67 | Home Depot
Hydro Systems Jetted Bathtubs Valencia 5 ft. Whirlpool and Air Bath Tub in
Home Depot
Broan 30-inch Stainless Steel Traditonal European Chimney Wall Hood
Overstock.com
Cavaliere-Euro 42-inch Wall Mount Range Hood
Overstock.com
Replacement Filter for 36" Provence Series Stainless Steel Wall-Mount Range Hood
Signature Hardware
© 2015 Houzz Inc. Houzz® The new way to design your home™