Things You'll Need
Bathtub resurface kit (cleaning mix, sandpaper, brush, paint roller, hardener)
If a bathtub is discolored, chipped, or worn out, it might be time to resurface the bathtub rather than replacing it. And with the abundance of bathtub resurfacing kits, it is simple. The kits can work on any surface, including plastic, and can be used to service other areas such as sinks as well. Kits vary from manufacturer so the contents may slightly vary, but all of the kits generally rely on skimming the surface to reapply a new sealant.
Clean the bathtub with cleaning solution provided in the kit to remove soap residue and oils. Scrub around the walls and faucets. Remove the drain outlet and clean the drain and outlet itself. Rinse with warm water.
Sand down the bathtub with 120-grit waterproof sandpaper. Sand around the edges, faucets, and any rust stains. Sand down until the sandpaper is worn down. Rinse with warm water. Let it dry.
Fill in any chips, dents, or holes with epoxy filler. Smooth out with a damp sponge. Let it dry.
Tape off surrounding wall and faucets with paper tape to prevent spilling.
Mix a can of hardener provided in the resurfacing kit, following the instructions on the back. Pour the contents into a paint tray.
Paint hard-to-reach areas such as corners, drain outlets and faucet edges, using a paintbrush.
Apply three coats of hardener onto the bathtub, using a paint roller. Allow for one to two hours of drying time between each coat.
Remove the tape from surrounding areas.
Dry the hardener for 48 hours.