Learning how to paint a bathtub gives you an inexpensive alternative to transform the color of a bathtub. It is also a great way to conceal a patch job on a fiberglass tub with a crack or chip that you can’t yet afford to replace. Keep in mind that you shouldn’t expect any paint job on your bathtub to last more than a few years, so start saving for the tub of your dreams after you’ve completed this project.
Step 1: Wearing gloves, goggles, and a face mask, apply a muriatic acid to the bathtub. This will dissolve any soap scum or hard water deposits on the tub. Remove the muriatic acid after several minutes with water and a damp cloth.
TIP: Painting a bathtub requires the use of harsh chemicals and noxious paints. Keep on all of your safety gear for the duration of the project, and keep the doors and windows to the bathroom open while you are working.
Step 2: Lightly sand the surface of the bathtub to further break up the existing glossy finish. Remove any residue with a dry cloth.
Step 3: Apply painter’s tape to protect the areas around the tub you don’t wish to paint.
Step 4: Apply epoxy paint to the bathtub with a paintbrush. Try painting from the edge of the tub to the center of it for best results. Allow the first coat to dry; apply a second coat if the color is streaky. Allow to dry for at least 12 hours.
Step 5: Mix the two part clear epoxy paint coating according to the manufacturer’s instructions. Then apply it to the surface of the bathtub, covering the epoxy paint. Do not over apply the epoxy paint, but be sure to evenly coat the surface of the tub.
Step 6: Allow the epoxy paint to cure. If needed, you can apply an additional coat of the clear epoxy paint, but you will have to mix just enough paint for each coat.
Step 7: Remove the painter’s tape, using a utility blade to separate the paint from the tape as necessary.