Best Bathtub Sealant in 2024 | Top 10 Picks by an Expert

Bathtub Sealant

Leaky bathtubs are always an annoyance. A leaky bathtub can cause water damage to your floor and adjacent areas, as well as lead to the growth of mold and mildew. Bathtub sealants are a perfect solution to this problem.

The bathtub is a container containing water that you can sit in while you wash your body. A sealant prevents future leaks by creating a waterproof barrier between your tub and the surrounding surfaces.

But how do you find the best bathtub sealant that’s right for your tub? You’ll find out in this article! We’ll go over the main factors you need to keep in mind when shopping for bathtub sealants.

We have reviewed the top 10 bathtub sealants on the market to help you. Our aim is to make it easier for you to pick the products that are right for you by presenting their pros and other factors.

Gorilla Silicone Sealant Caulk

GE Sealants M90007 Bathtub Sealant

Loctite Caulk for Bathtub

Top 10 Reviews on Best Bathtub Sealant

When you’re looking at bathtub sealants, you need to consider a product that performs their functions well, are easy to apply and is safe for the user.

In order to determine what bathtub sealants are best for you, here are the top 10 that we’ve reviewed. Let’s take a look at each of them to find out which one would be a good fit for your home.

1. Gorilla Silicone Sealant Caulk

Gorilla silicone caulk is perfect for a variety of projects both indoor and outdoor. Using this adhesive to seal around your bathtub is a perfect choice since it’s 100% silicone, so it’s watertight and durable.

The Gorilla Silicone Sealant Caulk is a silicone sealant that dries translucent clear. It is incredibly versatile and can be used for a variety of applications, including sealing around bathtubs, showers, and sinks.

Gorilla bathtub sealant is a great product to use when sealing gaps or cracks between two surfaces. The product can be applied to windows, doors, kitchen areas, and even showers and bathtubs.

It’s 100% waterproof and can be used indoors or outdoors, so it’s perfect for any situation. The sealant is also resistant to other liquids, making it ideal for use in bathtubs. It is an essential tool for home improvement projects.

Ideally, it should be used above 40F and should be cleaned off surfaces before use. Plus, it’s easy to apply and dries quickly, so you’ll be able to get back to using your bathtub in no time!

This gorilla bathtub silicone caulk is the perfect way to keep your bathroom looking new! It will not yellow, shrink or crack, so you can rest assured that it will last for a long time.

Just cut to desired bead size, apply sealant, and smooth the bead immediately after application. The cap should be replaced tightly once the work is completed and stored in a cool, dry location.

Highlighted Features:

  • Waterproof and resistant to other liquids
  • Can be used indoors or outdoors
  • Perfect for use on bathtubs, showers, and sinks
  • Dries translucent clear and is easy to apply
  • 100% silicone sealant that won’t shrink, crack or be yellow

2. GE Sealants M90007 Bathtub Sealant

GE sealant is a silicone-based product that can be used on kitchen and bathroom surfaces. It forms a waterproof caulk to prevent water and moisture from seeping through cracks and crevices.

The sealant is also mold and mildew resistant, making it a good choice for areas that are susceptible to moisture buildup. This is a durable, airtight seal that is 100% flexible and has excellent adhesion.

Silicone-based GE bathtub sealant is 100% waterproof. It is designed to provide a reliable seal in areas that are constantly exposed to water. Also, other areas that are frequently exposed to water can benefit from this sealant.

It dries in as little as 30 minutes, making it perfect for quick repairs. GE sealant is available in white color to match your decor. The formula cures to form a low-odor seal that is resistant to water and other liquids.

Their silicone caulk is designed to resist even the harshest conditions, so you can rest assured that your tub will stay watertight no matter what. Plus, it’s easy to apply, so you’ll be able to get your bathroom back to normal in no time.

It is designed to be used on high-end metal finishes, and it will not discolor them. This sealant is a great option if you are looking for a way to protect your bathtub from water damage.

Highlighted Features:

  • A great solution for bathroom surfaces near water
  • Forms low-odor seal that is resistant to water and liquids
  • Flexible formula moves with the product it’s applied to
  • Cures in as little as 30 minutes, making it easy to use on spot repairs
  • White color matches bathroom decor
  • Resists even the harshest conditions

3. Flex Shot Waterproof Caulking Sealant

This sealant is a great choice for anyone looking for an easy way to fix up their bathtub. The Flex Shot sealant is simple to apply, and it dries quickly, so you can get back to using your bathtub in no time.

It bonds and caulks quickly, and leaves a waterproof caulk that will prevent any moisture from seeping through. Whether you’re looking to seal your bathtub, windows, or even your roof, the Flex Shot bathtub sealant is the perfect solution.

There is a bathtub sealant that does not require the use of a caulking gun called Flex Shot Waterproof Caulking Sealant. This feature makes the product much easier to use, especially for repairs that are hard to reach.

The sealant is also very effective at sealing leaks, making it a great choice for anyone who wants to prevent water damage. This product is uncomplicated to use, with no running, dripping, or mess.

Flex Shot is a sealant that can seal large cracks and holes. It expands and contracts to fit the surface, making it an ideal choice for repairing bathtubs. It is also waterproof and can be used on a variety of surfaces.

The Flex Shot sealant is a great product because it doesn’t waste any material and you can use it multiple times. This is a great feature because it means that you won’t have to spend extra money on this product and it will save you time.

Highlighted Features:

  • No running, dripping, or mess
  • The caulk seals large cracks and holes
  • Works on a variety of surfaces
  • Can be used multiple times
  • Can be used as a caulk gun replacement
  • Use for bathtubs, windows, and roofs
  • Minimizes the risk of mold and mildew

4. Gorilla Silicone Sealant Caulk White

This product is designed to be used in bathtubs as silicone caulk. Because it is 100% silicone, it is durable and sturdy. It is also white, which makes it a good option for tubs that are white or light-colored.

This Gorilla Silicone Sealant Caulk White is perfect for anyone who wants to be able to get their bathtub ready in 30 minutes or less. It is a great sealant that will keep the water in, and make sure that your tub stays looking new.

Whether you’re fixing up the exterior or interior of your house, this sealant can do the job. It’s weatherproof and can be used both indoors and outdoors. If you’re fixing a leaky roof or sealing up a bathtub, this sealant can handle it!

The Gorilla bathtub sealant is a clear silicone material that will not yellow, shrink, or crack over time. This makes it a durable option for sealing around your bathtub. It’s also easy to apply, so any do-it-yourselfer can take advantage of it.

It is a high-quality product that is 100% waterproof. Gorilla bathtub sealant is a great product to use in your kitchen, bathroom, windows, doors, plumbing, and gutters. Boats and cars can also benefit from their use.

Moreover, this product is made in the United States by a company that is committed to selling high-quality products at great prices.

Highlighted Features:

  • Fits around bathtubs, sinks, countertops, and more
  • Simple to apply and takes 30 minutes to install
  • Durable material that won’t crack or shrink over time
  • Quick fix for leaks and sealing gaps around your house
  • Can be used indoors and outdoors
  • Rigorous testing to make sure it’s 100% waterproof

5. Loctite Caulk for Bathtub

Loctite bathtub sealant is a product that can be used to seal and waterproof bathtubs. It is a white, latex-based product that can be applied easily with a caulking gun. Once dried, it forms a waterproof seal.

The Loctite Caulk for Bathtub is a sealant that is easy to apply and is designed for use in kitchens and bathrooms. Sealants are weather-resistant, mold- and mildew-resistant, and easy to apply in 40 minutes.

Additionally, the sealant is scrub-resistant and waterproof. It also resists color change and abrasion to harsh chemical cleaners. With water, the sealant can be cleaned up immediately after use.

This is an acrylic caulk sealant that is flexible, so it is ideal for sealing around bathtubs, shower stalls, tiles, sinks, and backsplashes.

It also has excellent adhesion to a variety of surfaces, including ceramic, glass, fiberglass composites, porcelain, enamel, aluminum, stainless steel, wallboard, and wood.

Temperature ranges between 40 degrees F (5 degrees C) and 100 degrees F (38 degrees C), but it should not be used in continuous immersion applications such as behind shower doors, below the waterline, on mirrors, or in aquariums.

It can be used on joints that are up to 1/4 of an inch deep and 1/2 of an inch wide. The product should be allowed to dry for 24 to 48 hours before being exposed to water.

Highlighted Features:

  • Waterproof and resists mold and mildew
  • Dries quickly to a white, opaque color
  • Simple application with a bathroom caulking gun
  • Resists color change and abrasion from harsh chemicals
  • Prevents leaks around bathtubs, sinks, showers, tiles, and more
  • Flexible for easy application around corners

6. DAP Bathtub Silicone Sealant

DAP’s Kwik Seal is an easy-to-use, fast-drying sealant that can be used on a variety of surfaces, including bathtubs. It provides a water-resistant seal and dries quickly to a white finish.

This DAP Bathtub Silicone Sealant is a high-quality, all-purpose caulk that is perfect for sealing around bathtubs, sinks, and other fixtures. It is flexible and easy to apply, and it dries quickly to provide a durable seal.

DAP bathtub sealant is a white adhesive that is used to seal around the tub. It is mold and mildew resistant and leaves a water-tight seal.

This sealant is perfect for the do-it-yourselfer who wants a quick and easy solution for sealing up cracks and leaks.

DAP bathtub sealant is a 100% waterproof and paintable product that is ideal for sealing your bathtub. It is simple to use and requires no mixing, making it a quick and simple way to get your bathtub sealed uptight.

In essence, DAP bathtub sealant is a product that bonds like glue and seals like a caulk. It has a low odor and can be used indoors. It is a great product for repairing surfaces in the home.

However, this product can only be used on a surface that is smooth and flat. It cannot be used on surfaces such as textured walls or rough brick.

Highlighted Features:

  • 100% waterproof and paintable
  • Sets quickly to provide a permanent seal
  • Low-odor formula sets up in short times
  • Perfect for sealing around bathtubs, sinks, showers, and other fixtures
  • Seals around the tub with ease for a water-resistant seal

7. DAP Sealant for Bathtub

This Dap 00680 silicone caulk is a great product to use if you’re looking to seal up your bathtub. You can enjoy a relaxing bath without having to worry about the water spilling over the sides with this white, silicone rubber caulk.

DAP Sealant for Bathtub is a waterproof seal that is perfect for sealing bathroom fixtures such as bathtubs, sinks, and toilets. This sealant is easy to apply and dries quickly, making it the perfect solution for any quick repairs.

It is important that your bathtub remains watertight and protected against mildew and mold growth by using a DAP bathtub sealant. As the sealant cures, it forms a waterproof barrier around the edges of the bathtub.

The DAP Sealant for Bathtub is a great product to use if you are looking for a sealant that has minimal shrinkage. Additionally, this sealant has excellent adhesion and durability. It is a great option if you want a permanent solution.

This product is safe for incidental food contact, making it a great choice for use in kitchens and bathrooms. Additionally, this Dap silicone caulk is ensure a tight seal, you need to make sure that the surface is clean and dry.

To apply a DAP bathtub sealant, you can use a smooth-edged putty knife to remove old caulk. Then simply cut off the tip of the bathtub caulk tube and squeeze it into place, where you have removed all old caulk.

Highlighted Features:

  • No clean-up is needed for this watertight seal
  • Minimal shrinkage and excellent adhesion and durability
  • Extremely high bond strength, even without primer
  • High tear strength, resistance to chemicals
  • Comes in white color for light-colored surfaces

8. Oatey Waterproof Sealant for Bathtub

This Oatey sealant is perfect for around tubs, tiles, and fixtures. It’s easy to apply, flexible, and white so it will match any tile or tub. Additionally, it is mold and mildew resistant, so it will keep your bathroom looking new.

Oatey Waterproof Sealant for Bathtub is an acrylic latex caulk that is perfect for caulking around tubs, lavatories, showers, and sinks. It dries quickly and forms a watertight seal that prevents moisture from seeping through the cracks.

Oatey bathtub sealant is a product that is designed to fill and seal cracks and joints on various surfaces. It can also be used to reset loose tiles. The sealant is made from a rubber compound that is designed to provide a waterproof seal.

With a caulk gun (and sometimes a syringe), the sealant can be applied. It stays flexible and will not crack or shrink, so it is a durable option that will resist deterioration.

Oatey bathtub sealant is a caulking adhesive that can be painted over with latex or oil-based paint. The sealant comes in a caulking tube and should be applied around the base of your bathtub, where it meets the wall.

This sealant is straightforward to apply and cleans up within minutes with soap and water. So whether you’re sealing a new tub or repairing a leaky one, Oatey bathtub sealant is the perfect solution.

Highlighted Features:

  • Paintable over with latex or oil-based paint
  • Stays flexible to resist cracking and shrinking
  • A watertight seal prevents moisture from seeping through
  • Easy to apply with a caulk gun
  • Available in white to match any decor
  • Mold and mildew resistant

9. Red Devil 0405 Acrylic Sealant

This sealant is perfect for use in kitchens and bathrooms and can be applied to a variety of surfaces. Red Devil 0405 dries quickly and forms a hard, rubbery seal that is resistant to cracking and discoloration.

The Red Devil Acrylic Sealant is a product that provides a durable, waterproof seal. It is perfect for sealing leaks in bathtubs, showers, and other areas around the home that need waterproofing.

This bathtub sealant is an excellent adhesive that can be used to seal around tubs and other fixtures. In the event that it is carefully removed from surfaces, this adhesive leaves no stain behind.

Tub sealants use printing methods that ensure they remain adherent even after repeated soakings. As a result, it will keep the moisture out, which is crucial for preventing the growth of mold and mildew.

Red Devil bathtub sealant is a great choice for those who are looking for a product that will not shrink or crack. It is also easygoing to use, making it a great choice for anyone who wants a quick and easy solution.

This sealant is a durable and versatile adhesive that can be used on a variety of surfaces, including ceramic tile, marble, glass, porcelain, plastic, vinyl, wood, fiberglass, and metal.

Highlighted Features:

  • Dries quickly and forms a hard and durable seal
  • Resistant to cracking or discoloration
  • Easy to use, adhesive can be used on a variety of surfaces
  • Sealant is perfect for use in kitchens and bathrooms
  • Seals around tubs and other fixtures
  • Leaves no stain behind after removal from surfaces

10. ROSEROSA Caulk Sealant

ROSEROSA SL825 is a silicone caulk that is designed to be used around bathtubs and sinks. It is made from silicone, which makes it durable and permanent. Additionally, it is clear, which means it will not show up once it is applied.

This sealant is perfect for use in your bathroom and kitchen. It is easy to apply, and it cures strong, flexible silicone rubber. You can be confident that this product conforms to the KS F-25LM standard.

This ROSEROSA Caulk Sealant can be used on a variety of surfaces, including porcelain, ceramic, and acrylic bathtubs. Not only does this sealant prevent water damage, but it also prevents mold and mildew from forming.

Roserosa bathtub sealant is a product that is designed to prevent humid air from entering vulnerable areas in a building. This product is ideal for use in apartments, restaurants, houses, hotels, hospitals, public bathhouses, etc.

For anyone looking for a sealant that remains flexible after curing, this product is perfect. This sealant can handle temperatures ranging from -50 ℃ to 150 ℃, making it a great choice for a variety of applications.

ROSEROSA is a one-component, non-slump sealant that sticks well to most substrates and can be worked with easily, regardless of the season. It weathers well and is an excellent choice for gun applications.

Highlighted Features:

  • KS F-25LM standard
  • Clear formula, durable and permanent
  • Flexible and weatherproofing material
  • Designed to prevent mold and mildew from developing
  • Can handle temperatures ranging from -50 ℃ to 150 ℃

In our opinion, these are the best caulking sealants. As you can see, there are a variety of sealants available on the market, but all of them provide a high level of waterproofing and even mold prevention.

Buying Guides for the Best Caulk for Bathtub

bathtub paintable caulk

To choose bathtub sealant for your home, there are a few things you should consider. You should consider both the surface you are caulking as well as the characteristics of the adhesive.

The following guide can help provide you with the knowledge needed to choose the best caulk sealant for your home.

Materials to Seal

Before you decide which sealant to purchase, it is important that you consider the types of materials your bathroom is made of. The best caulk sealants are designed for different materials; therefore, they come in different variations.

If possible, start by checking your tub to see what material it is made of. This should give you an idea about the types of sealants you need to purchase.

Type of Adhesive

Different adhesives are designed for different surfaces. No matter what type of shower caulking gun you own, there is almost always multiple tubes that come with different sealants.

If the adhesive is not the right material for your surface, it will give you poor results and could even be unusable on some surfaces.

Mold and Mildew Prevention

Many sealants come with bacteria growth inhibitors that kill any mold or mildew that might appear. For this reason, you should look for a sealant that includes such inhibitors if you want complete protection from these types of conditions appearing.

If you do not care about mold and mildew inhibition, then there is no need to purchase an ideal sealant that includes this feature.

Temperature Resistance

bathtub shower caulking

It is important that you look at the temperature resistance of any shower caulking gun sealant you purchase as you will be using it around your tub.

Some materials are sensitive to high temperatures, and if you live in an area with hot summers, it may need a sealant with extra heat resistance.

In some cases, if the adhesive has not been designed for high temperatures, it can crumble or even become unusable.

Seasonal Weather Resistance

People living in humid areas have a higher risk of developing mold and mildew. To prevent this, you will need to purchase a sealant with added resistance to humidity.

Not only should the caulking gun sealant have a high moisture resistance level, but the adhesive should also be applied in a specific way.


Although it may seem trivial, certain color additives can improve the look of your sealant. Since many sealants are designed to be used in bathrooms, you should look for a caulking gun that is available in colors such as white or gray.

This new caulk has a clean and neutral look that complements most decors and provides a sharp contrast against any type of surface they are being used on.


shower caulk sealant for bathtub

As you will be using this sealant around your bathroom, you should look for a product that can be utilized in multiple areas.

In some cases, people use these sealants to fix small leaks and fix broken tiles so it is important that your sealant of choice has a strong construction and a durable performance.

The following surfaces can be sealed with caulking:

  • Porcelain Tiles
  • Ceramic Tiles
  • Vitreous China Sinks and Tubs
  • Marble
  • Fiberglass Showers and Bathtubs
  • Metal Shower Doors and Hardware

Surfaces such as vinyl, plastic, or wood can be sealed with acrylic caulk. It is important to consider the types of materials you want to seal before deciding which sealant to purchase.

Drying and Curing Times

You should look at the drying and curing time of a sealant before purchasing one. If a product dries too slowly, it may not be suitable for bathroom applications as water can drip down onto the adhesive and defeat its purpose.

On the other hand, if the sealant dries too quickly, there may not be enough time to apply it properly before it finishes. Most adhesives dry within 36 minutes, but some can take up to 24 hours.


In some cases, manufacturers will add extra features to their sealants that you might find useful. These can range from water repellent properties to enhanced durability against the elements.

Extra additives may add a small amount to the cost of the sealant, but they do provide some advantages, so it is worth considering.

By following these tips, you should be able to find the best caulk for showers and bathtubs sealant for your needs.

Types of Bathtub Sealant Caulk

acrylic caulk sealant for bathtub

There are many different types of sealants that can be used around a bathtub.

Silicone Caulk

Silicone sealants are commonly called rubber-coated silicone shower caulk, which is rigid over most of their lifecycle and are not prone to tearing.

It has a low adhesion rate, so it is important that you clean the surface to remove any dirt or dust before applying it.

Acrylic Latex Caulk

There are several types of acrylic latex caulk with different ingredients that can be used for bathrooms.

Although acrylic latex caulk has a high resistance to mold and mildew, they are not as effective against water as silicone sealants.

Polyurethane Caulk

This type of shower caulk is very durable and can be used on a variety of bathroom surfaces. The best caulk sealant works especially well on concrete, stone, ceramic, and glazed tiles.

Some others are…

Paintable Caulk

A paintable caulk type of sealant can be applied in multiple layers to reach your desired height. Each successive layer needs time to dry, which is why it has a long curing time.

Flexible Caulk

This type is a very elastic shower caulk and can be used on surfaces that are frequently exposed to water.

Shower Caulk

There are some products that are specifically designed for the shower caulk, which may include antibacterial properties.

It is important that you use the shower caulk correctly for it to have an effective application, so take heed of the included instructions carefully.

Frequently Asked Questions

There are a number of questions that customers often ask before purchasing the best caulk sealant.

1. How to Caulk a Bathtub?

To caulk a bathtub, you need to remove the old sealant, clean up any mold or mildew, and then apply a bead of your new caulking. Smooth it into place after making sure that there are no air bubbles left inside the caulk.

2. Does Caulking Tape Work?

Caulking tape is usually not as effective as a soft, caulk sealant. It can be difficult to make it stick well and the tape can rip easily if it is not applied correctly.

3. How to Seal a Bathtub Crack?

To seal a bathtub crack, you need to clean out any remaining pieces of the old caulk from the crack, apply a bead of your new caulking, and smooth it into place with the best caulk tool.

4. Is Silicone or Acrylic Caulk Better?

Acrylic caulk is a great option for painting applications, as it creates a neat and clean seal between walls, ceilings, and woodwork trim.

Silicone caulk is often referred to as rubberized silicone caulk because it remains flexible for most of its durability enough, making it ideal for projects that require a waterproof seal.


Caulking the bathtub sealant is an inexpensive but very effective way to keep your bathroom clean and mold-free. It also provides a barrier against water, which can protect your walls and floors from any damage.

By following the advice in this article, you should be able to find the best bathtub sealant for any of your bathroom needs. It’s important that you choose the right sealant for any project and follow all of the instructions carefully.

We hope you enjoyed this article and that you found the perfect bathtub sealant for your bathroom. Feel free to share any good ones we missed in the comments below. Thanks for reading!

Best Bathtub Sealant in 2024 | Top 10 Picks by an Expert

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