What paint would I use on bathroom sink and tub
RustOleum Tub & Tile, following directions carefully.
And use good ventilation.
Yes, maybe buy a couple of cheap respirator masks. At least the kind that medical professionals use.
I agree with Kathy. I've used it and my tip is to go EXTREMELY light on each coat and allow much longer in between coats than the directions specify
Do this execpt on your sink and tub instead of a toilet: https://www.craftylittlegnome.com/husband-painted-toilet-gold/