|
constructordeguitarras -> RE: Stripping varnish (May 25 2017 21:35:32)
|
What I would use to strip French polish (shellac) is very different from what I would use to strip actual (oil) varnish. I have done both several times.
For oil varnish, I have sucessfully used furniture stripper that is composed of methylene chloride (dichloromethane) and wax. You brush it on, wait, and then gently scrape it off with a plastic scraper.
To strip shellac, I have found that the best way is to wet sand it off using (olive) oil as the lubricant. Somehow the oil causes the sandpaper to stop sanding when it gets down to the bare wood. I find that 320 grit sandpaper works well for this.
Beware that once the finish is all stripped off, now you have an unsealed bridge and bindings, which can bleed color onto lighter colored woods such as the soundboard, if not re-sealed very carefully.
|
|
|
|
