Is Rub 'n Buff waterproof?

Danielle Segev
by Danielle Segev

I've seen some amazing projects on here using gold Rub 'n Buff on faucets and other bathroom fixtures, and I want to try it myself. But do I need to seal it with polyurethane or similar?

This project uses polyurethane on top of gold Rub 'n Buff, whereas this one doesn't.

If Rub 'n Buff is wax, then it should be waterproof, right? So is the polyurethane just a precaution?

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