The 8 Best Tub Repair Kits of 2021

Fix cracks in your bathroom with these tools

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If cracks, chips, scratches, or holes are impacting the appearance and usefulness of your bathtub, a tub repair kit is a simple DIY solution. Whether you have a porcelain, fiberglass, acrylic, or enameled steel tub, you can find a product to fill the imperfection and seal the spot against corrosion or further damage. 

Many tub repair kits include two-part formulas that require a quick mix before application. Once applied, the product needs sufficient time to dry and cure before it’s ready for exposure to water. While these formulas are often available in standard color selections that may not be an exact match for your tub’s finish, it’s usually close enough to satisfy most homeowners. On the other hand, some kits let you mix dye to create a custom color match.

Give your tub a quick fix with these top tub repair kits on the market. 

Our Top Picks
Make minor repairs to any type of tub using this formula that can be dyed to suit the shade of your fixture.
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This refinishing kit will give your tub a facelift while providing protection against moisture and corrosion.
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Best for Fiberglass:
Keeney Tub Repair Kit at Lowe's
A gel coat putty and hardener provide strong, durable adhesion for cracks and filling small holes, up to 18 inches.
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Available in multiple shades to match your tub’s color, this kit includes topcoat paint to finish the repair with a high shine.
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Give the floor of your tub a facelift with this inlay kit that covers imperfections and scratches in a tub’s finish.
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Use an aerosol paint designed for moist, warm environments to easily cover imperfections or change the color of your tub.
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Repairing a hot tub requires a product that can withstand wet conditions and high temps, like this 2-part formula from Plast-aid.
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For small to mid-sized jobs, this two-part epoxy formula cures quickly and saves you money on more extensive tub refinishing kits.
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Best Overall: HomeTinker Tub & Shower Repair Kit

HomeTinker Tub & Shower Repair Kit

For a tub repair that is effective and spot-on in terms of color matching, consider this popular tub repair kit from HomeTinker. Their Tub & Shower Repair Kit can be used on a wide variety of tub types, including acrylic, fiberglass, ceramic, porcelain, enameled steel or cast iron, and gel-coated. 

While many tub repair kits are available in standard color selections like white, bone, or almond, the reality is that tubs come in a wide range of shades and these colors aren’t always a perfect—or even close—match. If you’re afraid of your tub touch-up sticking out like a sore thumb, then this refinishing kit, which allows you to mix your own custom color product, is a great match. A stark white base formula can be tinted using one of two different dyes to match tubs that range from black to milky white. 

While it may sound daunting, the Home Tinker Tub & Shower Kit is a great DIY tub repair kit. It also stands out for its odorless formula. 

Best for Refinishing: Rust-Oleum Tub & Tile Refinishing Kit

Rust-Oleum Specialty 1 qt. White Tub and Tile Refinishing Kit

To take on more than just an isolated chip or scratches, consider using a tub refinishing kit—like this two-part product from Rust-Oleum. Following a multi-step process, you’ll be able to refinish your tub in a smooth, white epoxy in a single day, but you’ll have to wait 3 days before exposing the surface to water. 

Rust-Oleum Tub and Tile Refinishing 2-Part Kit covers up to 110 square feet, and can also be used for sinks and tile surrounds. It’s worth noting that once you mix the included jars of the product together, it should be used within six hours. Since two coats are recommended and you can re-apply after an hour or two of dry time, you should be able to easily complete this process within the timeframe. The key to success is to do proper prep work on your tub and follow the directions. 

Best for Fiberglass: Keeney Tub Repair Kit

Keeney Tub Repair Kit

Popular for their affordability and durability, fiberglass tubs are still subject to chips and cracks. If your fiberglass tub suffers a mishap, give it a quick fix with the Keeney Tub Repair Kit. A gel coat putty and hardener provide strong, durable adhesion for cracks and filling small holes, up to 18 square inches. 

The formula is available in white or bone color options, though it may not be an exact match for your tub. Even still, this fiberglass tub repair kit provides a smooth finish and an easy way to mask imperfections and extend the life of your tub.  

Best for Porcelain: Bathworks Tub and Tile Chip Repair Kit in White

Bathworks Tub and Tile Chip Repair Kit in White

If your porcelain tub has become chipped or scratched, you may be concerned about corrosion and an unsightly appearance. To restore your tub’s appearance, the Bathworks Tub and Tile Chip Repair Kit is a popular pick that comes in five shades to match the appearance of your porcelain tub. 

The chip filler compound and its cream hardener work together to cover up to a dozen chips, and it hardens within minutes—though full curing time will vary. Following the manufacturer’s directions, use the topcoat paint to cover the repaired spot. It dries to a glossy finish, making this tub repair kit a good pick for porcelain tubs—although it can be used on fiberglass or ceramic materials as well. 

Best Inlay Kit: NuTub White Bathtub Inlay Kit

NuTub White Bathtub Inlay Kit

If you need to repair the floor of your tub, an inlay kit may be your best bet for a fresh start—without having to replace your entire tub. The NuTub Inlay Kit provides everything you need to repair the floor of your bathtub. It’s a great solution if you have many cracks, scratches, or chips you want to hide on the floor of your bathtub. 

Each kit includes a PVC inlay that measures 16 x 36 inches, along with the adhesive, sandpaper, and other accessories you’ll need to complete your tub repair. You can use this tub repair kit with practically all types of common tub materials, including porcelain, fiberglass, enameled steel, and acrylic. 

Best Paint: Rust-Oleum Specialty Tub and Tile Spray Paint

Rust-Oleum 280882 Specialty Tub and Tile Spray Paint

To make it easier to cover corrosion and stains, an aerosol paint specifically designed for tubs and tile is a popular option. Rust-Oleum Specialty Tub and Tile Spray Paint is a single-step product that saves time and doesn’t require you to mix formulas together and wait hours in-between applications. It leaves a glossy, smooth surface and adheres to fiberglass, porcelain, and ceramic surfaces.

This epoxy acrylic formula dries on the surface in just 15 minutes, which is among the shortest drying times of tub repair kits. However, it still requires 3 days of curing time before being exposed to water. Keep in mind that each can only covers about 15 square feet. It’s ideal for limited areas of touch-up or small fixtures (like a sink), but for larger applications, you’ll need multiple cans—up to seven cans to cover an entire bathtub. 

Best for Hot Tubs: Plast-aid 80100 Plastic Repair Kit

Plast-aid 80100 Plastic Repair Kit

While standard tub repair kits work well for household fixtures, a hot tub that is exposed to water constantly requires a special type of product. Plast-aid Plastic Repair Kit is an easy-to-use option for sealing cracks in your hot tub shell. Keep in mind that the surface will need to be clean and dry at the time of the repair.  

The two-part formula requires mixing before application and becomes thick quickly. Once cured, it offers water-resistance and durability—even for wet environments. No color options are available, but you can add acrylic paint to blend the repair.

Best Budget: AiBast Tub, Tile and Shower Repair Kit

AiBast Tub, Tile and Shower Repair Kit

Fixing small flaws in your tub, tile, or sink doesn’t have to be an expensive project when you opt for a DIY tub repair kit, like this version from AiBast. The two-part formula combines to create a durable epoxy that you can apply to porcelain, fiberglass, acrylic, or enameled steel tubs. Once hardened, it’s waterproof and durable enough to withstand up to 143 pounds of pressure. 

It cures quickly when compared to some other tub repair kits on the market; 18 to 24 hours is the recommended cure time, depending on the air temperature. This product is an affordable but effective way to correct flaws in the surface of your tub, sink, or tile, but keep in mind that it’s only available in a bright, white formula that matches glossy porcelain tubs or tiles best.

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.

Why Trust The Spruce?

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.

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