DIY Bathtub Reglazing Without a Spray Gun

Scrape the sides of the tub using a single-edged razor scraper to remove any existing finish or soap scum from the surface of the bathtub. Wipe away the residue with a rag.

Cut away the caulking surrounding the tub with the razor edge of the scraper, pulling the caulk off by hand as you cut the material away from the wall along the edges. Clean the joint left behind with a powder bathroom cleanser and a scrubber pad. Rinse off the cleanser with water, and then pat dry with the rags.

Remove the drain cover from the bathtub using a screwdriver to take out the securing screw. Plug the drain with a large cork to keep the glazing material from flowing down the drain as you work.

Put on chemical-resistant gloves, safety goggles and a respirator. Open all windows and doors to increase the ventilation through the bathroom.

Spread an etching cream over the surface of the bathtub using a clean sponge. The etching cream will create a textured surface suited to reglazing. Allow the cream to sit in place for 20 minutes, and then remove the cream from the tub surface with a scrubbing pad. Dry off the tub surface using paper towels.

Repair any gouges or chips in the tub surface by filling them in with a polyester resin filler. Pack the filler into place with a small putty knife, and then allow it to dry for about an hour. Sand the filler smooth and level with the surrounding bathtub surface with a water-saturated 220-grit piece of sandpaper. Wipe off the residue with the rags.

Place a strip of masking tape along the wall and floor where the bathtub meets the adjacent surfaces to protect the surfaces from the glaze. Place masking paper over the surfaces as well to extend the protective layer outwards about a foot. Secure the paper in place with the masking tape.

Cover the bathtub surface with a thin layer of bonding agent to provide better adhesion for the glazing material. You can apply the agent with a soft paper towel to keep the covering smooth. Wait 20 minutes after application to allow time for the agent to set up.

Mix a two-part epoxy-based primer in a small bucket, following the manufacturer's suggested mix ratio. Use a wood stir stick to mix the hardener into the base. Apply the primer to the tub surface with two light coats, rolled onto the surface with a small paint roller. Wait 15 minutes for the first coat to dry slightly before applying the second. Allow the primer to dry for about four hours, and then wipe the dried surface clear of any dust with a tack cloth.

Apply the finish topcoat to the bathtub surface using two-part epoxy paint. Roll the coat onto the surface in three layers, waiting 15 minutes between each for slight drying. Allow the final coat 36 hours to dry.

Remove the masking tape and paper. Pull the cork from the drain, and reinstall the drain cover to the tub. Recaulk the joints between the tub and the wall and floor. Wash the tub before using it again.