[header] How to refinish bathtubs [title] Clean the entire surface of the bathtub with chemical cleaners to remove any soap scum and dirt residue. [step] The chemical cleaners will also help the bonding agent adhere to the surface. [title] Rinse and dry all surfaces thoroughly. 
[title] Use a palm sander to gently roughen the surfaces you plan to refinish to make it easier for the paint to bond with the surface. [title] Tape paper or plastic over any surfaces you do not want to paint.