How to Refinish a Bathtub: A Complete Guide
Learn how bathtub refinishing works, what the process involves, and when it makes sense to call a professional.
An old bathtub can make the entire bathroom feel dated. Stains, scratches, chips, and a dull finish tend to become more noticeable over time, even when the tub is cleaned regularly.
The good news is that an older tub doesn’t always need to be replaced. Bathtub refinishing, also known as reglazing or resurfacing, restores the existing surface and gives it a fresh finish.
If you’re wondering how to refinish a bathtub, it helps to understand what actually goes into the process before deciding whether to tackle it yourself or call a professional.
What Does Bathtub Refinishing Do?
Refinishing restores the surface of the bathtub without removing the fixture itself.
Instead of tearing out the existing tub, the old surface is cleaned and prepared, damaged areas are repaired, and a new finish is applied. Depending on the condition of the tub, this can take care of stains, fading, scratches, small chips, and other signs of everyday wear.
Different bathtub materials require different preparation. Fiberglass, porcelain, acrylic, and cast iron don’t all respond the same way, so identifying the surface is an important first step.
A tub with serious structural damage is another matter. Refinishing can improve and repair the surface, but it isn’t meant to cover up major problems underneath it.
Preparing a Bathtub for Refinishing
A large part of refinishing happens before the new coating is applied.
Years of soap, cleaning products, body oils, mineral deposits, and caulk residue can leave behind buildup that isn’t always easy to see. The bathtub needs to be thoroughly cleaned so those contaminants don’t interfere with the new finish.
Old caulk around the edges may also need to be removed. Chips, scratches, and other damaged areas are repaired and smoothed out before moving forward.
The existing surface then needs to be prepared for the products being used. The exact method depends on the bathtub material and refinishing system.
This isn’t the most exciting part of the job, but it’s one of the most important. Putting a new finish over a poorly prepared surface can lead to problems later.
How to Refinish a Bathtub
Once the bathtub is clean, repaired, and properly prepared, the refinishing process can begin.
The first step is making sure the surrounding bathroom is protected. Fixtures, walls, floors, and other areas that shouldn’t receive coating need to be covered or masked off.
Next, the bathtub surface is prepared for the new finish. A professional refinisher will use products and techniques suited to the particular tub material.
The new coating is then applied evenly across the surface. More than one application may be needed to achieve the desired finish.
Once the coating has been applied, the tub needs time to cure. This part can’t be rushed. Using the bathtub too soon can damage a finish that hasn’t fully hardened.
The exact curing time depends on the products used and the conditions in the bathroom. Always follow the instructions provided for the specific refinishing system.
Can You Refinish a Bathtub Yourself?
DIY bathtub refinishing kits are available, and they can make the project look fairly simple.
In reality, applying the coating is only one part of the job.
The bathtub still has to be cleaned, repaired, prepared, and coated correctly. The bathroom also needs proper ventilation, and the surrounding surfaces need to be protected during application.
Small mistakes during preparation may not be obvious right away. The tub might look good when the project is finished, only for problems to appear later.
That doesn’t mean every DIY project will fail. It does mean homeowners should understand the amount of preparation involved before deciding whether it’s a project they want to take on themselves.
Why Ventilation Matters
Bathtub refinishing products can produce strong fumes during application, so ventilation and appropriate protective equipment are important.
Simply opening the bathroom door isn’t always enough. The products being used determine what ventilation and protective equipment are required.
This is one area where professional refinishing has an advantage. Experienced technicians already have the equipment needed to work with refinishing products and manage the work area properly.
If you’re considering a DIY product, read its safety instructions carefully before opening or applying anything.
When Should You Hire a Professional?
Sometimes the condition of the bathtub makes professional help the better choice.
A tub with several chips, cracks, previous coatings, or significant surface wear may require more preparation than a basic DIY kit is designed to handle.
The material can make a difference too. Fiberglass, porcelain, acrylic, and cast iron each have their own characteristics, and using the wrong preparation method can affect the finished result.
Professional bathtub refinishers work with these surfaces regularly. They can inspect the tub, determine what repairs are needed, and choose a refinishing process that fits the material and condition.
For homeowners who mainly want the bathtub restored without turning it into a weekend project, professional refinishing can also save a considerable amount of time and cleanup.
How Long Does Bathtub Refinishing Take?
One advantage of refinishing is that the existing bathtub stays in place.
There’s no need to remove the old fixture, haul it away, install a replacement, and repair everything disturbed during removal. That can make refinishing considerably less disruptive than replacing a tub.
The actual refinishing work can often be completed relatively quickly, but the surface still needs time to cure afterward.
Your refinisher should tell you when the tub can safely be used again. Waiting for the full recommended curing period is important, even if the surface already feels dry.
How to Care for a Refinished Bathtub
Once the bathtub has been refinished, a few simple habits can help protect the new surface.
Use a mild, non-abrasive liquid cleaner with a soft cloth or sponge. Rough scrubbers and abrasive cleaning powders can gradually scratch or dull the finish.
It’s also a good idea to clean the tub regularly instead of allowing soap residue and mineral deposits to build up.
Be careful with suction-cup bath mats as well. Repeatedly pulling strong suction cups away from the bathtub can put unnecessary stress on the refinished surface.
Most importantly, follow the care instructions provided by your refinisher. The products used on your particular tub may have specific cleaning and maintenance recommendations.
Is Bathtub Refinishing Worth It?
If your bathtub is structurally sound but looks worn, refinishing is worth considering before you decide to replace it.
A stained, scratched, chipped, or outdated surface doesn’t necessarily mean the entire bathtub has reached the end of its life. Sometimes the tub underneath is perfectly usable and simply needs a new finish.
Learning how to refinish a bathtub also makes it easier to understand why preparation matters so much. The finished surface is only as good as the work underneath it.
Bathtub Refinishers works with a range of bathtub materials and conditions. If you’re unsure whether your tub can be refinished, having it inspected is a simple way to find out what it needs before committing to a larger bathroom project.
