10 Best Caulk For Baseboards In 2024 (Top Picks & Reviews)

best caulk for baseboards

The only way to prevent mold and mildew away from your home’s baseboards is to use caulk. Here we’ve put up an unbiased review of the best caulk for baseboards.

Caulk can move with the surfaces it attaches to without splitting or breaking its seal. You may need to re-caulk your baseboards every five years or more. It depends on the circumstances of your home.

Baseboards are the small elements that give your rooms a polished look and a high-end appearance. Caulk adds a perfect finish to your baseboards and walls by filling in unpleasant gaps with smooth, consistent lines.

It also extends the life of your baseboards and walls. But applying the caulk to baseboards is ultimately a personal opinion.

Applying caulk has several benefits because caulk is a baseboard gap filler. A homeowner should caulk between baseboard and floor.

There are lots of caulks available on the market. We are here to suggest the DAP White Alex Plus Acrylic Latex Caulk with Silicone as the best pick for you.

In this article, we will discuss the 10 best caulks and their all-over quality and features. 

What Is the Best Caulk for Baseboards

Bathrooms and kitchen baseboards are mainly the “splash zones” of a home, and they require a waterproof caulk such as silicone. Latex caulks also work well for most molding all across the home.

Generally, caulk is a messy, sticky sealant used to glue surfaces together. It is typically constructed of silicone, rubber, or acrylic. The finest caulk for baseboards provides a waterproof seal that prevents moisture in the right application.

The majority of households have issues with their baseboards. They become damaged, broken, and detached since moisture frequently meets them. Caulking can help you avoid having this kind of issue. 

So, choose a good weatherproof caulk or sealant to protect your baseboard. We have chosen DAP 18152 White Alex Plus Acrylic Latex Caulk with Silicone as the overall best pick to do this job perfectly. 

Moreover, preventing mold and mildew on the baseboard is also important. In this case, GE Sealants & Adhesives Paint Projects Max Shield is a good choice. Sashco 10016 Big Stretch Caulk is for best gap filling and GE Clear Sealants & Adhesives GE5000 is budget-friendly.

However, bonding and flexibility are also undeniable, so Red Devil 0770 Lifetime Ultra 230 and Sashco Big Stretch Acrylic Latex are suggested by us for bonding and flexibility.

And the most versatile caulk is Polyseamseal 2139006 White All Purpose Adhesive Caulk. Lastly, Red Devil 0777 Lifetime Acrylic Latex Sealant, Red Devil 0746 white Painters Caulk, and DAP 18001 Kwik Seal White are the best choices for basic usage, dry surface usage, and a professional look.

1. Best Overall: Dap 18152 White Alex Plus Acrylic Latex Caulk with Silicone

Brand: DAP | Weight: 1 pounds | Dimensions:‎ ‎2 x 2 x 11.25 inches | Color: WHITE

Dap 18152 White Alex Plus Acrylic Latex Caulk with Silicone

What We Like

  • Paint becomes ready in 30 minutes 
  • Easy to clean with water
  • Fill all the cracks easily
  • Best for a DIY project 

What We Do Not Like 

  • It is quite pricey 
  • Not effectively waterproof 

The Dap Alex Plus caulk is a multipurpose sealant. It is used for various jobs, like baseboards and window trim. This sealant dries quickly and is simple to apply. It is the best choice for short-term repairs on both the interior and exterior. 

This product’s acrylic latex caulk formulation makes it easy to use. The silicone component provides a strong, long-lasting bond. Because it is a silicone-based caulk, it is more long-lasting than other caulk forms.

Furthermore, it is indeed a sticky caulk, specially designed for baseboards. Its major function is to act as a moisture barrier between the baseboard and the wall. It is also useful for cementing surfaces together.

It’s a high-quality, mildew, and moisture-resistant substance. It is perfect for filling the gap between baseboard and laminate floor. It creates a strong, long-lasting layer that protects your baseboards from moisture and mold colonization.

As this caulk is waterproof and paintable, it can be used to repair a wide range of leaks and holes. It dries rapidly and provides a durable, rubbery moisture barrier that keeps the elements out and water damage at home.

Wear gloves and work in a well-ventilated location when applying the caulk. Our expert team said it has a strong acidic smell.

As we chose this product for our best pick, as usual, it is quite expensive, but worth the money because it has a 40-year warranty. 

So, use this caulk in any type of baseboard in your home without any hesitation. 

2. Best Mold Mildew Resistant: Ge Sealants & Adhesives 2709188 Paint Projects Max Shield

Brand: GE Sealants | Weight: 15.2 ounces | Dimensions:‎ ‎11.06 x 1.93 x 1.89 inches | Color: White | Material: Acrylic

What We Like

  • It applies smoothly, remains tacky, and cures quite quickly
  • This caulk has good expansion quality and prevents mold mildew
  • Good paintable caulk with durability

What We Do Not Like 

  • It remains sticky sometimes

GE has created an over-the-top solution that combines the greatest benefits of both caulk and silicone. This elastomeric substance can stretch more than 800 times its original size, making it ideal for sealing large gaps and cracks up to 3 inches wide.

Furthermore, because it is completely waterproof and weatherproof, it can be used in places where few caulks can be. I’m referring to sinks, restrooms, tubs, and other damp areas, including the outdoors.

Because it is ready to paint over in less than an hour, you can quickly give every room in your home a gorgeous finish. This silicon smoothes out better than typical silicon. As a result, it is unlikely to have exceptional sticking ability.

It works nicely for us, and it just gives us the outcome that we desire. We installed a bathroom vanity and will be performing major renovations next year so that the vanity may be reused without trouble.

However, its long-term capabilities include lifetime mold and mildew prevention. As a result, it is also ideal for humid situations such as coastal and arid places. This quality makes it one of the best baseboard caulk.

We also applied it in several places around the window trim gaps or kitchen. The trim didn’t quite meet properly, and we thoroughly painted over it. This waterproof caulk is not cracky at all. It seals the space between the baseboard and floor nicely.

If you make any mistakes when applying it, clean it up with water and soap to have a perfect covering of caulk that resists water damage. Furthermore, it will not shrink or crack even in extreme weather conditions.

GE’s sealing caulk comes in eight different hues, ranging from white to almond. It comes in convenient 10.1-ounce cartridges that are ideal for caulking guns.

3. Best Gap Filling: Sashco 10016 Big Stretch Caulk 10.5-Ounce

Brand: Sashco | Weight: 1.6 Ounces | Dimensions:‎ ‎2 x 2 x 11.38 inches | Color: White

Sashco 10016 Big Stretch Caulk 10.5-Ounce

What We Like

  • Fill the gap very easily 
  • Nice caulk for trim and baseboard 
  • The caulk does not crack after drying 

What We Do Not Like 

  • Best for interior usage, mostly
  • Flat paint is not compatible

Let’s look at Sashco’s Big Stretch Caulk, a water-based sealer that introduces a new term, elastomeric. It refers to natural or synthetic rubber that can return to its original shape after removing a deforming force.

If you have a gap between the baseboard and the wall, we suggest using this caulk. It’s also simple to use the product. You’ll need a caulk gun, but any remnants may be smoothed out or removed with your finger and this is paintable.

If you have significant flaws on any surface in your home, this caulk can fix them. Avoid using this caulk in kitchen backsplashes, sinks, baths, or roofs. You should also avoid utilizing it in high-traffic locations.

Although this caulk seems fluid, it did not sink. Its high viscosity enables it to make contact with and adhere to both sides of the bead. The material shrinks throughout the slow curing process, according to the product documentation. It is noticeable when you fill a large gap using a second bead to fill in the flat area.

This is a professional product that is offered to the general public. You will not be disappointed with the product after utilizing it. We’re not sure how a few people were able to give it a one-star rating. When it comes to results, you’ll need a high-end caulk, and this is the one. As a result, it is a five-star rated caulk.

4. Best Budget-Friendly: Ge Clear Sealants & Adhesives Ge5000 Advanced Silicone

Brand: GE Sealants | Weight: 11.2 ounces | Dimensions:‎ ‎1 x 0.51 x 0.67 inches | Color: ‎Clear

Ge Clear Sealants & Adhesives Ge5000 Advanced Silicone

What We Like

  • This is 100% waterproof sealant
  • Provide a smooth finish on every surface
  • An unlimited budget-friendly product with various benefits 

What We Do Not Like 

  • Appear messy sometimes

Are you looking for something 100% waterproof? This GE Clear Sealants & Adhesives GE5000 Advanced Silicone is the one. As it is water-resistant, it can tolerate water, but only for a limited time. The resistance fades, and water begins to creep in as time passes.

However, we suggest GE’s Window & Door Sealant Caulk, based on a long-lasting sealing concept. Its 100 percent silicone composition creates water and weatherproof sealer that may be used anywhere, from the living room’s baseboard to the driest kitchen sinks.

This caulk will protect against mold and mildew for ten years wherever it is applied. Furthermore, don’t be concerned about testing it outside: it is ready for rain in just around 30 minutes once applied. 

Suppose you clean the surfaces thoroughly and allow them to dry completely before applying this. In that case, it works great as a water sealant. Another outstanding feature of this caulk is its flexibility.

GE promises that it will remain flexible indefinitely while maintaining its excellent stickiness. The sealant can endure extreme temperatures and material contraction caused by temperature variations.

This silicon smoothes out better than other typical silicon. It’s a good fit for us, and it’s exactly what we’re looking for. We put in a bathroom vanity.

For testing purposes, we also painted over various cracks around the house. This caulk is paintable with most latex and oil-based paints. So, adopt the best way to caulk baseboards with this sealant to get better results.

5. Best For Bonding: Red Devil 0770 Lifetime Ultra 230 Premium Elastomeric Acrylic Latex Sealant

Brand: Red Devil | Weight: ‎10.1 ounces | Dimensions:‎ ‎2 x 2 x 11.25 inches | Color: White | Material: Rubber

Red Devil 0770 Lifetime Ultra 230 Premium Elastomeric Acrylic Latex Sealant

What We Like

  • It performs well as it possibly can
  • The best bonding caulk 
  • Do not create a mess while applying

What We Do Not Like 

  • Not glossy 
  • The drying process is quite slow 

This caulk is a wonderful choice if you live in a humid area. Use this caulk if your family is prone to mold and mildew. Its multifunctional formula can be used both inside and outside of your home. Furthermore, the manufacturer guarantees that it will last a lifetime.

The acrylic component allows it to stick to a wide range of materials, including plaster, wood, tile, concrete, metal, brick, etc. 

However, the elastomeric component, on the other hand, ensures that the product does not shrink or crack. It will hold everything you need for the rest of your life. 

Another advantage is making multiple slashes in the same area, though this must be done with care. Allow time for it to cure properly. According to some users, this can take a long time. Just take your time.

Red Devil’s caulk is available in seven colors and weighs 5.5 oz. It is an excellent product to create a stable bond. Use it on windows, moldings, showers, and bathtubs. However, a few things to keep in mind: this sealant dries quickly in less than a minute. It does not adhere well to the bonding materials since it is dry.

You’ll need to smooth it out with your finger and some water. This sealer is not shiny like other bath and kit sealants. However, if you don’t mind a matte appearance, the sealant can be used in both the bathroom and the kitchen. If feasible, purchase a 12-pace because it offers the best value.

6. Best For Flexibility: Sashco Big Stretch Acrylic Latex High-Performance White Caulking Sealant

Brand: Sashco Inc | Weight: ‎‎10.7 pounds | Dimensions:‎ ‎11.97 x 8.11 x 6.22 inches | Color: White | Material: ‎Silicone

Sashco Big Stretch Acrylic Latex High-Performance White Caulking Sealant

What We Like

What We Do Not Like 

  • Take time to get dry

The Sashco big stretch caulk is ideal for sealing baseboards. It comes in a cartridge, making it simple to apply, and the applicator is provided. Most baseboards will look good with white caulk.

This high-performance sealant can be used in various settings due to its ability to stretch up to 500% of its original size. Furthermore, it will not damage your baseboards or surrounding surfaces because it is water-based.

Sashco caulk is ideal for baseboards because of its high suppleness and ability to handle even the biggest seams without sagging. As a result, it is a permanent, watertight caulk that will help your home survive for a long time.

The fantastic caulk can be used both inside and outside your home. It is great for keeping out the weather due to its exceptional UV resistance for many years to come. Its strong adhesion and great elasticity allow it to adhere, twist, bend, compress, and stretch more than 500% of its original size.

It can also be used to seal gaps around crown molding, which adds an appealing aesthetic touch to your home project.

Sashco caulk is great for baseboards because it has a low smell and is easy to clean. Furthermore, it is available in a variety of colors, which will allow you to choose one that complements your décor or quickly paint it to fit.

This baseboard caulking may be the correct solution for you if you need a sealant that can tolerate any amount of movement within your home without cracking.

With this caulking, you can create a long-lasting, watertight seal around your baseboards to keep your home looking beautiful.

7. Best Versatile Caulk: Polyseamseal 2139006 White All Purpose Adhesive Caulk

Brand: ‎Loctite | Weight: ‎‎7.7 ounces | Dimensions:‎ ‎1.57 x 2.44 x 9.75 inches | Color: White

Polyseamseal 2139006 White All Purpose Adhesive Caulk

What We Like

  • Can cover ¼ inches hole and gap
  • Works great with all types of surfaces, including baseboard 
  • This is a multipurpose caulk 

What We Do Not Like

  • It can become cranky after a few months 

Are you looking for the best caulk under baseboards? Use this all-purpose polyseamseal caulk. This product does exactly what the merchant stated it would do. This tube is long enough to cover a whole bathroom, including the toilet, sink, tiles, and bath tube. The cost is reasonable. This caulk is recommended since it is weatherproof and will make your baseboard appear nice.

Polyseamseal All-Purpose Caulk is simple to use and seals well. It’s ideal for replacing moldy caulk. It has a lengthy shelf life and does not emit a noticeable odor. We like this product because you can paint over it. 

If you want to caulk baseboards after painting, then apply this caulk. Therefore, it can be used on various materials, including plastics, wood, concrete, metal, and plaster. The tube is extremely long-lasting.

It’s fantastic that it has a multipurpose capacity and can be used for various projects. When you obtain this for them all in one, there’s no need to buy individual special usage seals.

8. Best For Basic Usage: Red Devil 0777 Lifetime Ultra Premium Elastomeric Acrylic Latex Sealant

Brand: RED DEVIL | Weight: ‎‎10.1 ounces | Dimensions:‎ 2 x 2 x 11.25 inches

Red Devil 0777 Lifetime Ultra Premium Elastomeric Acrylic Latex Sealant

What We Like

  • Best for baseboard of a bathtub
  • This is a waterproof product 
  • Best for basic usage than a high-velocity one 

What We Do Not Like 

  • It takes a long time to clean 

The Red Devil is a high-quality sealant that could be used to caulk baseboards, among other things. It’s sealed with Ultra 230 Premium Elastomeric Sealant, which prevents fading, cracking, and peeling. It’s also an acrylic latex caulk sealant, making it simple to use, and comes in a lovely white color.

This Acrylic Latex Caulk Sealer is perfect for filling cracks and gaps inside and outside the home. It dries rapidly and is simple to work with a variety of projects.

Because this caulk is paintable, you can easily match the color of your baseboards to the color of your walls. If anyone wants a quick, professional-looking finish, the Red Devil caulk is a good choice.

Other caulk products have less adherence and flexibility than superior caulk. It will stay in place and will not shrink or crack. As a result, making it a more reliable option.

It’s simple to clean with soap and water, making it a great option for busy homeowners. The caulk is also long-lasting and sturdy to resist normal fatigue. To caulk the bottom of baseboards in the bathroom, choose this Red Devil caulk. 

This caulk is a rising sealant built to endure the life of your house. It is designed for interior and exterior use and has a long lifespan. The versatility of Red Devil baseboard caulking makes it an excellent choice for different types of applications.

9. Best For Dry Surface Usage: Red Devil 0746 White Painters Caulk

Brand: Red Devil | Weight: ‎‎1 pound | Dimensions:‎ ‎2 x 2 x 11.25 inches | Color: White | Material: Polymer

Red Devil 0746 White Painters Caulk

What We Like

  • Very flexible in usage 
  • A great value caulk
  • It works best for dry surface 

What We Do Not Like 

  • Do not work well in the bathroom or kitchen

Nothing beats listening to professionals when it comes to some things, especially when you don’t know where to begin. Listen to painters if you want to give your property a fresh new look and use this specific Red Devil caulk.

Red Devil Painters’ Caulk sticks to any material, including painted and unpainted wood, plaster, drywall, brick, metal, and aluminum. Aside from its 25-year durability guarantee, it is easy to clean with water and soap before it dries.

However, the paintability of this paste is what makes it stand out and makes it worth a try. It is intended to be painted over with any paint, latex, or oil-based.

After applying latex-based colors, you must wait two hours; you must wait an entire day for oil-based paint. On the negative side, this is a non-flexible caulk that should not be used in places with heavy foot or vehicle activity. Red Devil’s products are exclusively available in white and come in a 10.1-ounce cartridge.

This product outperforms and outclasses DAP painter’s caulk, which cracks and pulls away from trim and baseboards. Red Devil outperforms every other painter’s caulk we’ve tested. For caulking the bottom of baseboards, this Red Devil caulk is best.

The caulk is ideal for moldings and joints that require a speedy repair and are ready to paint right away.

It flows effortlessly and has a beautiful finish. Keep a couple of tubes in your kit, and you’ll be ready whenever the situation arises.

10. Best For Professional Look: Dap 18001 Kwik Seal White

Brand: DAP | Weight: ‎‎‎8 ounces | Dimensions:‎ ‎10 x 3 x 2 inches | Color: White | Material: Latex Polymer

Dap 18001 Kwik Seal White

What We Like

  • Great Baseboard Gap Fix caulk ever
  • Provide the professional look and finish 
  • Squeeze in the right way while using  

What We Do Not Like 

  • Do not have a good waterproof capacity 

In this complete list of baseboard caulks, we find our last product, a good recommendation from our expert team. Kwik Seal is the caulk we’re talking about.

When dried, a coat of this caulking material provides a stronger attachment while also maintaining flexibility. In other words, despite other materials like glue, it will not break or crack. This is a professional all-purpose caulk. Users can paint over it.

The sealing ability of the caulk is marvelous. Because silicone makes up a large part of the composition, it provides a waterproof seal in the areas of your home where you need it the most: the kitchen, bath, and plumbing.

Following the spread of this caulk, there are two stages, each with its own set of advantages. DAP’s Kwik Seal may be easily cleaned off before it cures. You only need to use water and soap to dilute it, and there will be no trace that it was ever there.

The ability to seal up and store this product is a plus. The finished product, as well as the dried product, appear to be of high quality. If you plan to caulk the bottom of baseboards on tile, use this caulk because it provides a professional look. 

However, unless you remove the caulk with a sharp object after it has cured, it will not detach. On the plus side, it can be painted and is mildew resistant.

Some users have questioned the “Kwik” portion of the bargain, claiming that they waited longer than recommended for the caulk to cure, and it still didn’t.

Wait until the caulk has completely dried before putting it to the test. It is meant to work better, especially and effectively in homes, bathtubs, and piping.

DAP’s products are available in three colors: white, clear, and almond, and come in 5.5 oz. Cartridges. I recommend buying standard caulk packing and a caulk gun, which I’ll do in the future.

How We Tested Caulk

Our expert team chose these 10 best caulks for the baseboard. We applied this caulk to different spaces in our own homes to see the result. Moreover, we also asked other users’ perspectives about this caulk. After gathering all the data, we have selected the ten bests.

What To Look for To Buy Caulk

While the best outdoor caulk may be good for use on inside baseboards, it’s essential to know how to use it. Knowing the key characteristics of several varieties of caulk allows you to select the right product for each application confidently.

If you are looking for the best type of caulk for baseboards, then before buying a caulk, you need to keep your eye on a few things:

Caulk Type

There are many different types of caulks on the market, but not all of them are appropriate for baseboards. For instance, masonry caulk has a polyurethane base and is frequently textured with sand.

Refractory caulk is a type of heat-resistant caulk commonly used around fireplaces. Butyl rubber caulk is extremely flexible and works well for gutter sealing. None provide the excellent stability and smooth finish essential for caulking baseboards.

For baseboards, mainly three types of caulks are suitable, and they are

Acrylic caulk is a latex-based sealer that can be used indoors and outdoors. It can keep moisture out of the house in kitchens, baths, and other high-humidity locations. 

However, silicone is a rubber-based caulk that can be used indoors and outdoors. Lastly, silicone caulk and acrylic latex are mixed. It can be used horizontally and vertically as an interior and exterior sealer.

Caulk Quality

Do you caulk baseboards? Then you must know that a good baseboard caulk has to have a few qualities such as proper drying timing, durability, appearance, water resistance, mold and mildew resistance, and paintability. 

Caulking baseboards is not worked that needs to be done regularly. Although there is always the possibility of accidental damage necessitating a repair, regular maintenance should not be required if a high-quality product is used correctly.

Make sure that your chosen caulk has all the good qualities. Choose a renowned caulking band. Do not find a cheap one. Try to avoid discount stores commonly stocked with low-cost caulk from unknown brands.

Paintability and Curing Time

The time it takes for caulk to dry varies significantly depending on the type. Latex is the fastest drying material; some types can cure in as little as 30 minutes. 

A quick-drying period might be especially beneficial if a few large gaps necessitate a second application or if the baseboard and caulk will be repainted. Latex caulk is the best choice if the region needs to be used as soon as possible.

On the other hand, pure silicone takes more time to cure. While these caulks are occasionally water-resistant after only a few hours of curing, a thorough cure can take up to 24 hours.

Read next: 4 Steps: How To Paint Over Non-Paintable Silicone?

Mold and Mildew Resistance

Ensure the caulk is waterproof if the baseboards are in a potentially moist or humid area, such as bathrooms, kitchens, conservatories, etc. The caulk will quickly deteriorate due to the changing humidity levels if it isn’t. Many latex-silicone hybrids, as well as pure silicone, are completely waterproof. Because latex products differ, it’s important to be cautious when inspecting their quality.

For a humid climate, mold and mildew resistance are vital when selecting a baseboard caulk. Although pure silicone is likely to provide the best protection, please don’t count on it.

Choosing Colors

You can choose from clear, white, black, or light gray baseboard caulk. The color you require will be determined by the design of your property.

Caulk for baseboards is a simple solution to keep your home’s aesthetic consistent. It is mold-resistant, mildew-resistant, and water-resistant. The type you select should provide the necessary resistance to the weather elements.


Should I caulk between the baseboard and the tile floor in the bathroom?

Yes, caulk between the baseboard and the bathroom tile floor is necessary. This is because it aids in the prevention of mold growth beneath your bathroom tiles and grout. It also allows them to dry correctly, preventing mildew problems in the future.

Is it necessary to caulk the baseboards?

To prevent mold and mildew, baseboard caulking is important.

What is the function of baseboard caulking?

This sealer not only fills gaps and makes the joinery look perfect, but it also acts as a barrier to keep creatures and drafts out of places they shouldn’t be. Caulk also fills in dust-gathering cracks, making it easier to clean baseboards.

Is it possible to manufacture a superior product by combining two types of caulks?

The simple answer is no. Every type of caulk is made specifically for a specific job. Attempting to mix items will not only make them messy and difficult to apply, but it will also likely impair rather than increase their effectiveness.

Wrapping Up!

Here is all the information about the 10 best caulk for baseboards. Caulking is a simple technique to keep your home’s design consistent.

It aids in the prevention of mold, mildew, and water damage. The type you select should provide the necessary resistance to withstand all weather factors.

Whether installing new baseboards or fixing old ones, our suggested product will help you get consistent, professional-looking results, and for this purpose, we have chosen DAP White Alex Plus Acrylic Latex Caulk with Silicone as the best pick for you.

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