If you can still find Epoxy and Varnish remover at Home Depot I found it will take off just about anything if you follow directions carefully. Hang the stock in the garage over a bunch of laid out newspapers as it will get messy. Apply, let it set the recommended time, scrape off. Repeat if necessary. You may have some small areas that are difficult- I use a cabinet scraper for those areas and sand smooth when done.
