The 8 Best Tub Repair Kits of 2022

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A good tub repair kit is an easy DIY solution for fixing cracks, chips, scratches, and minor holes while sealing the spot against corrosion, leaks, and further wear. We researched dozens of tub repair kits, assessing ease of use, formula, compatibility with different tub materials, and effectiveness. 

Our best overall pick, the HomeTinker Tub & Shower Repair Kit, can be used on several tubs and shower types, comes in three color series to match with dozens of shades and is non-toxic and odor-free. 

Here are the best tub repair kits.

Final Verdict

If you want a tub repair kit that will leave behind a blended repair spot, then the DIY color-matching kit from HomeTinker (view at Amazon) is your best bet. Use the included dye to create a durable, water-resistant epoxy that is a close color-match for your existing tub, shower, or sink. On the other hand, if you’re looking for a quick option for touch-up paint, the Rust-Oleum Specialty Tub and Tile Spray Paint (view at Amazon) is an excellent choice.


While most bathtub repair kits can be used on the most common bathtub materials, it’s still important to know what your bathtub is made out of. The reason for this is that the application method, surface preparation, and curing time can differ depending on the bathtub material. Common materials include cast iron, porcelain, fiberglass, and acrylic.

Cast-iron tubs are probably the easiest to spot because a magnet can be used to identify whether the tub is made of metal or not. Porcelain over metal tubs will also attract the magnet, but porcelain tends to chip more than the enamel covering a cast-iron tub.

Porcelain bathtubs consist of a steel tub covered in a thick coating of porcelain. Due to this design, many people refer to these tubs as porcelain over metal bathtubs.

Fiberglass bathtubs are great if chips are a concern because fiberglass is chip-resistant. However, this non-metallic material will still crack and fade over time, requiring repairs.

Acrylic tubs look and feel similar to fiberglass, with a flexible shell that gives when the sides of the tub are pressed in, unlike a rigid, cast-iron tub. Acrylic is easy to repair, but it’s also susceptible to fading and cracking.


Not every bathtub is the same size or requires the same amount of product to repair the tub and give it that like-new appearance. This means that it’s necessary for you to pay attention to the coverage that the product requires in order to ensure that there aren’t any spots that are too thin, showing the old tub finish underneath.

Typically, a bathtub repair kit will provide enough epoxy or enamel refinishing product to apply two coats to the average bathtub. However, if the tub has been significantly damaged or experienced a high level of wear over the years, it may require three coats to renew its appearance. Inspect your tub beforehand and determine how much epoxy or enamel you will need to make the repairs.


The application method is another factor that needs to be taken into consideration. Most bathtub repair kits include an epoxy or enamel product that can be applied with a paintbrush or roller. This allows the user to quickly and effectively apply the refinishing product as easily as if they were painting. You can also find bathtub repair kits that have a spray-on refinishing product that is even easier to use than a paintbrush and roller. Just make sure to tape off or otherwise cover the areas of the bathroom that you don’t want to be coated in refinisher, including the floor and walls.

Drying and Curing

Each bathtub repair kit will have individual instructions indicating how long it will take for the treatment to dry. When the surface is dry, it can be lightly touched or brushed up against without damaging the epoxy or enamel. However, it is not durable enough for someone to take a bath or shower.

Refer to the product instructions to find out how long until the repair fully cures. On average, it will take about 2 to 4 hours for the epoxy to dry, though some spray-on products may only take 20 minutes. Most bathtub repair treatments can then take up to 48 hours for the treatment to fully cure. Do not use the bathtub during this time to avoid damaging the repair.


  • Bathtub finishes can fade, chip, and crack over the years, but a bathtub repair kit can be used to return the tub to a like-new appearance. This is accomplished by applying epoxies or enamels to the surface of the tub with a paintbrush, roller, or a spray can in order to fix cast iron, porcelain over metal, fiberglass, or acrylic tubs.

  • All common bathtub materials can be repaired with a bathtub repair kit. However, it’s important to know what the bathtub is made out of because the repair process can differ depending on the material.

  • If you can’t tell whether the tub is cast iron, porcelain over metal, fiberglass, or acrylic from a visual inspection, try pressing on the side of the tub to test the flexibility. If it gives, then it’s likely made of acrylic or fiberglass. You can also hold a magnet to the tub to determine if the tub is made of cast iron or porcelain over metal. If the magnet sticks, then you know the tub isn’t acrylic or fiberglass.

Researching the latest products and trends to make the most of your home, Erica Puisis has been writing for The Spruce since 2017. A regular wanderer at big box home improvement stores and an official helper to her handyman husband, Erica is no stranger to DIY projects and enjoys researching and recommending the right products to help you get the job done.

Additional reporting and research for this article was done by Timothy Dale, a long-time home improvement expert specializing in plumbing, construction, and product recommendations, among other topics.

Disclaimer: Curated and re-published here. We do not claim anything as we translated and re-published using google translator. All images and Tattoo Design ideas shared only for information purpose.

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