Painting a bathtub is a cost-effective way to restore its surface, upgrade your bathroom’s aesthetics, and extend its life without the high price of a full replacement. Whether you're dealing with a chipped, worn-out, or outdated tub, refinishing it yourself can save hundreds of dollars. Below, we provide a detailed, professional guide to help you learn how to paint a bathtub step by step.
Tools and Materials You’ll Need to Paint a Bathtub
Before starting, make sure you have all the required tools and materials. Having everything ready will streamline the process and help ensure professional results.
Essential Tools and Supplies:
Protective gear: gloves, goggles, and a respirator mask
Painter’s tape and plastic sheeting or drop cloths
Screwdriver (to remove hardware)
Razor scraper or utility knife
Sandpaper (400 to 600-grit or wet/dry sanding block)
Trisodium phosphate (TSP) or another heavy-duty cleaner
Tub and tile refinishing kit (preferably epoxy-based)
Foam roller and brushes
Caulk remover and fresh caulk (optional)
Step 1: Prepare the Bathroom for Bathtub Painting
Thorough preparation is key to success.
1. Ventilation:
Open all windows and doors. Use fans to increase airflow. The fumes from tub refinishing products can be harmful if inhaled.
2. Cover Surroundings:
Use plastic sheeting and painter’s tape to protect tiles, fixtures, walls, and floors from overspray and drips.
3. Remove Hardware:
Unscrew and remove drain covers, faucets, or shower doors. It’s crucial to work on a clean, obstruction-free surface.
Step 2: Clean and Degrease the Bathtub Surface
Clean the surface thoroughly with TSP or another degreaser. Soap scum, oils, and other residues can prevent the epoxy paint from bonding.
Scrub the entire surface, paying extra attention to corners and around the drain.
Rinse with warm water and dry completely using a lint-free cloth.
Pro Tip:
Repeat this cleaning process twice to ensure no residues remain.
Step 3: Sand the Tub Surface for Maximum Adhesion
Sanding is crucial for promoting paint adhesion.
Use 400 to 600-grit sandpaper or a sanding block.
Sand the entire surface evenly until it feels dull and slightly rough.
Rinse off sanding dust and dry with a clean towel.
Don’t skip this step even the best refinishing kit won’t adhere well to a glossy surface.
Step 4: Repair Chips and Cracks
Before painting, fill any nicks, chips, or cracks in the surface.
Use a waterproof epoxy repair kit designed for bathtubs.
Apply filler, smooth it with a putty knife, and let it cure.
Sand the repaired areas to make them flush with the tub surface.
Step 5: Mask Off Surrounding Areas
Using painter’s tape, cover the edges around the tub, drain, fixtures, and anywhere else you don't want paint.
Be precise with taping to prevent sloppy lines.
Lay plastic or drop cloths to protect the floor.
Step 6: Apply the Tub and Tile Refinishing Paint
Choose a high-quality refinishing kit. Most come with two-part epoxy paint, which is highly durable and water-resistant.
Mixing the Paint:
Follow the manufacturer’s instructions exactly.
Mix the components thoroughly for the chemical bond to activate.
Application:
Use a foam roller for large areas and a brush for corners and edges.
Apply in thin, even coats to avoid drips or bubbles.
Allow proper drying time between coats, typically 1–2 hours.
Pro Tip:
Apply two to three coats for a smooth, long-lasting finish.
Step 7: Let the Bathtub Cure Properly
Curing time is critical. The newly painted surface must fully cure before it can be used.
Let the bathtub cure for at least 48–72 hours.
Avoid touching or placing objects in the tub during this time.
Impatience can ruin your work. Curing allows the epoxy to harden and become resistant to moisture and wear.
Step 8: Reinstall Hardware and Clean Up
Once the surface is fully cured:
Carefully remove all painter’s tape and protective coverings.
Reinstall fixtures, hardware, and accessories.
Re-caulk edges around the tub if needed.
Final Cleaning:
Wipe the tub with a soft, damp cloth.
Do not use abrasive cleaners, which can scratch the fresh surface.
Maintenance Tips to Extend the Life of a Painted Bathtub
A professionally refinished tub can last 5 to 10 years with proper care.
Avoid:
Abrasive sponges or scouring pads
Bleach-based or ammonia-based cleaners
Bathmats with suction cups (they can lift the paint)
Use:
Mild dish soap or non-abrasive bathroom cleaners
A soft cloth or sponge for cleaning
Routine rinsing to prevent soap scum buildup
When Not to Paint a Bathtub
Some situations may call for full replacement or professional refinishing.
Structural damage such as large cracks or rust holes
Tubs made of flexible plastic that won’t hold epoxy well
Previously refinished tubs that are peeling or uneven
In such cases, consult with a contractor before investing time in a DIY refinishing job.
Conclusion
Knowing how to paint a bathtub gives you the power to transform your bathroom without breaking the bank. With the right tools, techniques, and care, your tub can look brand new and provide years of use. By following each step carefully, you ensure durability, aesthetic appeal, and professional results right from your own home.