I a chemical stripper to get the built up finish off the surface. Then I use Acetone to neutralize the stripper. I use a fairly hot stripper for refinishing. It will not take out oil and for that I have been using a product called Super Clean. If you use a soak tank it will remove lots more oil. I then use an Acetone bath to remove any residue from the Super Clean to bring the wood to color. Super Clean has a tendency to leave a darker color to the wood when dry. The Acetone changes the color back to neutral.
