major tung oil problem
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.