Q: What would happen if I wanted to sand all the way to bare wood, and then cover with a water base? Would I get some yellowing?
How do I prevent yellowing?
A: If you remove all the old finish, you won’t have yellowing. Mind you, some of the better oil based finishes also contain a resin made from safflower that resists yellowing. They give a richer look than water based, but don’t go as ghastly dark as the cheaper finishes tend to do.