Here's a link to the possible problems resulting from use of wax, and the difficulty of removing same, in a museum environment.
Spoiler alert: I was taken aback by the curator's having to resort to using boiling xylene to effect removal.
Before I read the article, I had used Renaissance Wax on a keris blade that would benefit from treatment to restore pamor. Now I fear that it may not be possible. Fortunately I am a successful, even talented, procrastinator, so it's likely I'd never have made the attempt anyway.
Link:
http://cool.conservation-us.org/jaic...35-01-001.html