How do I remove old paint from a brown bathtub?
However, since a bathtub forms an “enclosed space,” do this work outside so the fumes dissipate as readily as possible. You might still want to obtain breathing apparatus because inhaling those fumes can be a very expensive high. Personally, thinking about the task would make me consider buying a replacement instead of going thru the trouble of renovating it. Or you could have a professional bathtub refinisher do it.