Rocket

.what will melt the grunge , hard as a rock, probably dried oil, soot and nicotine one hundred years plus old on some of ( most of ) my old machines , without destroying the finish . Don’t say SMO , kerosene, bug and tar . The only thing so far that’s worked isTR-3 resin cleaner . It takes forever and uses rolls of paper towels. The scary part is you have to rub so hard for so long . Also the bed of some machines is just to damaged sometimes to just oil or wax . Please don’t say French Polish . Way to many things can go wrong there over that couple week process. It’s 2019 and this ain’t France . I recently had this problem with a model 66 , I cleaned it , masked it and sprayed it with an automotive lacquer and it turned out great. Why don’t I read about more folks using more modern quality materials like lacquer or poly ? Have I made a mistake that I just don’t know about yet ? Any suggestions other then creating a two week old fly paper.