Best Caulk For Baseboards (Top 7 Pick & Reviews) – 2021


Can’t decide which one is best for baseboards?

I know how badly you want your house to look perfect and all you are looking for is a good caulk for it. 

There are so many caulks of different formulas. Right?

And you do not know which one to choose. 

We know how it feels when you are confused about which one to purchase. Then there is one thing to do. That is to ask for advice from an expert. 

We have done so as well. We have talked with some experts and done our own research. 

According to our research and opinions from the experts Acrylic latex Or silicone based caulks are the best ones for baseboards. Because the features of these formulas perfectly meet the requirements of caulking baseboards. 

Look at the list of caulks which are best for baseboards. We hope it will help you. 

  1. Dap 18128 Alex Plus Acrylic Latex Caulk Plus Silicone – Top Pick
  2. SASHCO BIG STRETCH ACRYLIC LATEX CAULK – Best For Interior And Exterior Usage
  3. GE Sealants & Adhesives Ultra Seal Caulk – Best For Bathroom uses
  5. Dap 18001 Kwik Seal Caulk – Best For Beginner’s

7 Best Caulk For Baseboards Reviews

1. Dap 18128 Alex Plus Acrylic Latex Caulk Plus Silicone – Top Pick

Dap 18128 Alex Plus Acrylic Latex Caulk Plus SiliconeDap 18128 Alex Plus Acrylic Latex Caulk Plus Silicone

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Looking for a caulk which is all in all for your baseboards solutions?

Dap  18128 is the caulk which stands strong in this purpose. The white colored caulk is paintable and has all the features you need to work on baseboards.

Attractive Key Features:

Prevents moisture:

Dap 18128 is an acrylic latex caulk which has silicone in it. Silicone made caulks are well known for their capability of preventing moisture. This moisture prevention formula of this caulk makes it the best suit to be applied on baseboards. It does not matter if you apply it on the baseboards of your washroom or kitchen. You will have the same result. 

Mildew resistant:

The mildew-resistant caulk keeps your baseboard clean. It does not turn yellow. As a result, your baseboard does not look odd after applying the caulk. 


Being manufactured with the acrylic latex formula. The caulk can be easily painted over as per your choice. 


Dap 18128 offers 35 years of durability guaranteed. This is an extremely long period. This confidence from Dap shows how durable the caulk is. There might be a few products in the market which can compete with such durability of this caulk


Though the quality of the product is outstanding, the control of the quality sometimes seems to lack. There are many reviews which say that the product arrived with less amount, unsealed etc.

Do not worry about these issues. If you are dealing with a good buyer you might be offered a replacement. 

Another fact to be considered is that the product holds a steep price tag. Do not forget that the product has silicone in it which is costly. The great performance and quality makes it of great value.


  • Durable.
  • Mildew resistant.
  • Paintable.
  • For indoor and outdoor usage.
  • Moisture resistant.


  • Less quality control.



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Sashco big stretch earns its reputation in being the best caulk for baseboards as it has the best stretch and quality of covering cracks of any size. The product is very efficient and of high quality. 

Attractive Key Features:

Interior and exterior usage:

Sashco Big Stretch can be used in both interior and exterior surfaces of your baseboards. You can also apply the caulk on other surfaces such as wood, window, etc. 

Soundproof sealing:

You can use this caulk to seal drywall sheets, around the walls and windows etc for a soundproof sealing of any cracks. It’s ability of big stretching makes it capable of covering long cracks without cracking. 


If you are working on a project which requires coloring, then you will be happy with this feature. 

The product is paintable and as a result, you can paint it in any color matching up with the color of your baseboard.

Highly stretchable:

The caulk can be stretched up to 500% without any cracking. You do not have to worry about the fact of expansion and contraction of cracks if you are using this caulk. 


Without any doubt the Sashco model lets you work with ease. But there is a limitation to this product. Which is that it can not withstand water. This means not to apply the caulk on a  surface with moisture.


  • Durable.
  • Good stretching ability.
  • Great value.
  • Can be used in both interior and exterior surface.
  • Paintable.
  • High quality.


  • Is not water-resistant.

3. GE Sealants & Adhesives Caulk – Best For Bathroom uses

GE Sealants & Adhesives Ultra Seal CaulkGE Sealants & Adhesives Ultra Seal Caulk

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Need a caulk to use on your bathroom baseboards?

Then GE sealants caulk is the one which you need. The caulk protects your baseboard from being affected by humidity. 

The features and the versatility of the caulk is the reason why this caulk has made its position in our list. 

Attractive Key Features:


The caulk is made of silicone. This manufacturing quality of the caulk enhances the durability of the caulk. 

The product is so durable that the manufacturers offer 30 years of durability guaranteed. It resists shrinking and cracking with ease as well.


The best feature of this product is its versatility. You can use this on multiple surfaces.

Yes of course you can use this on baseboards. Being waterproof it also gives you the opportunity to fix your bathroom pipes, bathtubs, shower, sinks, etc. 

Other features:

Being only water resistance is not all about this amazing caulk. It also has the other features that a baseboard caulk should have. 

It is paintable, stretchable, and mildew resistant. Flexibility of this product is not as much as the prior caulks offer, but it is enough to work on baseboards. 

Great finish:

As I mentioned earlier, the caulk is mildew resistant. This makes it a best choice for working on baseboards. It is also easy to apply and clean.


For a good adhesion always prepare the surface. The price might seem a little bit high, but the price and the quality of the product makes up for it.


  • Great quality.
  • Good adhesion.
  • Long-lasting.
  • Paintable.
  • Water and mildew resistant.


  • Specific paints are required to paint on.



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Like the above-mentioned silicone-based caulks Red devil also has all the basic silicone caulk qualities. It has good adhesion to baseboards and gives you a long-lasting service. 

Attractive Key Features: 

Easy application:

You do not have to be an expert to apply the red devil on any surface. Follow the pre-cleaning and application guidelines for a professional finish. You might no need any additional equipment to work with it. 

Dries well without cracking:

The caulk does not only work great, but the awesome texture of it dries really well. It does not also crack by the passage of time.

Water, mildew, and mold resistant:

The water-resistant formula makes it the best caulk to work on baseboards. If the board is in your washroom or sink, there is nothing to be worried about. 

The mildew resistance makes it hard to turn yellow. 

Being paintable, you can paint it with matching colors as well.


Unfortunately, this product takes a long time to dry. Sometimes it depends on the humidity of the area where it is being applied. You have to sit around for hours for the caulk to dry.


  • Easy to apply.
  • Easy to clean.
  • Water-resistant.
  • Can be used in both interior and exterior surface


  • Less working time

5. Dap 18001 Kwik Seal Caulk – Best For Beginner’s

Dap 18001 Kwik Seal CaulkDap 18001 Kwik Seal Caulk

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In our list what we have now is Dap 18001 Kwik Seal. This is also a good product to work on baseboards. It has great adhesion to it once it dries. The waterproof sealing quality of the caulk sticks tight on the surface of the baseboards. 

Attractive Key Features:

Great quality:

According to the manufacturer this product sticks to the surface as glue and performs as a caulk. This is a great marketing line. This tells how great adhesion the product has on the surface. 

Works great and cleans easily:

It does not matter even if you are a beginner at caulking. Just follow the instructions, cut the nozzle accordingly and apply it on your baseboard. You will be happy to see the professional finish of the caulk. 

If you make any mistakes while applying you can wash it just with water and soap. But once it dries. There is no option for that. You have to scrape it off from the surface then. 

Kwik Seal:

You will be happy to use kwik seal in areas of your bathroom and bathtub. The caulk seals the gaps with perfection and being waterproof you do not have to worry about the longevity of the caulk. 


Please be careful on letting the caulk dry for a proper period of time before putting it on the test. If you let it dry well it will not disappoint you.


  • Great Quality.
  • Professional finish.
  • Easy to apply.
  • Easy to clean.
  • Waterproof.
  • Made for kitchen, bath, etc.


  • Less working time

6. Red Devil 074612 Painters Caulk – Best For Paintable Areas

Red Devil 074612 Painters CaulkRed Devil 074612 Painters Caulk

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Want to give your home a brand new look?

You can ask the painters about the painter’s caulk and they will refer to this caulk from Red Devil. No matter whatever project you are working on. It will give you satisfaction as well as perfection.

Attractive Key Features:

Great product:

The product is made from an acrylic latex formula. This can be used on both interior and exterior surfaces.

It does not matter if you are using it on your outdoor or near the sink or around the bathtub baseboard. You will be happy to find out that this is waterproof as well.

This even protects from rain and other natural weather elements. Plus! It is mildew resistant.

Good adhesion:

The ability to adhere on any surface makes it a great deal. It adheres strongly on wood, drywall, brick etc. You can name it. 

Easy painting: 

The best thing about this caulk is its paintability. The manufacturers have focused on it very much that it can be painted over by any type of paint. It does not matter if it is oil-based or acrylic. 

If there are latex-based pigments in your paint, then you have to wait for 2 hours. If it is oil-based, you have to wait a bit longer. It is 24 hours. 

Best performance:

The product is more durable than other caulks in that it smoothly fills up the cracks and gaps of the baseboards. It goes on smoothly and is easy to apply and clean up. 


Well, do not get disappointed if I tell you that you are looking at a non-flexible caulk. Do not use it on the surfaces where you are expecting flexibility.


  • Easy paintable.
  • Waterproof.
  • Easy apply and cleaning.
  • 25 years of durability guarantee.


  • Non-flexible.

7. DAP 18275 Interior and Exterior Sealant – Best For Interior and Exterior

DAP 18275 Interior and Exterior SealantDAP 18275 Interior and Exterior Sealant

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This is a premium sealant which you might have been looking for a long time. It is a caulk which has the feature of two worlds. It is stretchable and can be painted over as well. 

Attractive Key Features:

Best of baseboards:

The expansive and adhesion quality of the caulk makes it one of the best caulks for baseboards. It is capable of sealing larger gaps than any other products. The formula makes it a best suit for both indoor and outdoor usage. 

Great formula: 

The product has a formula of acrylic latex which contains silicone in it. This makes the tube contain the features of all the two types of formulas altogether. 

Environment friendly:

The VOC rate of the caulk makes it a weather-friendly tool to work with. It is less harmful for humans and the environment in large. 

No primer needed:

If you want to paint over the caulk, you have to do it after 2 hours of application. You can paint it over with any paint you want, You do not need a primer to do so. 


The manufacturing quality of the product is so good that they have offered a lifetime guarantee of the product. 

It is a perfect suit for wood and other synthetic materials as well. The capability to fight with moisture and vermin is what makes it a best choice for baseboards. 


It is not suggested to use on the surfaces where there is a continuous flow of water. Because this is not a waterproof caulk. 


  • Great adhesion.
  • Long lasting.
  • Paintable.
  • Low VOC rate.
  • Durable.
  • Acrylic latex caulk.


  • Non-waterproof.

Buying Guide Of Caulk For Baseboards:

We believe that you have read all the product reviews above. You have already known that either acrylic latex or siliconized baseboards are what is needed for baseboards. Still making a choice might be difficult for you. This is why we are here with the buyer’s guide which will help you in making the right decision.

Caulk type:

The most basic thing you have to consider before making a purchase is the formula of the caulk. As mentioned earlier the caulks are made of either acrylic latex or silicone or both combined together. The products are different from each other when the formulas are different. 

Generally, acrylic latex caulks are suitable for the surfaces where there is no exposure to water. They are called the painter’s caulk for their paintability and cheap pricing. 

On the other hand, the acrylic latex ones which have silicone mixed in them are the ones which can be applied on the humid areas, especially on bathroom baseboards. This type of caulk is capable of resisting mild water and does not melt away. 

Now, the silicone-based ones. They are the better ones than the acrylic ones at the point of being waterproof. If you are planning to work on the surfaces where there is a constant flow of water, then you should go for this type of caulk. The durability and water resistance feature makes them a top deal. Oh! One more thing, you can not paint over them. . 

Ultimately, you can use acrylic latex with a mixture of silicone, if you are working on baseboards. On the other hand, if you want waterproof caulking and are okay with the paintability then you must go for the siliconized ones. 

If anyone offers to sell you a paintable siliconized caulk, it is not the pure one and surely less effective. 

To know better about the types of caulks and their application click here


If a caulk does not last long, that is not a really great product. Do not compromise with caulk of good quality with anything else. 


The acrylic latex ones offer at least 20 years of durability guaranteed and the silicon-based ones offer 35 years. If your seller does not offer you so, the suggestion would be not to purchase. You will easily find better ones in the market. 

Curing time:

By curing time it is meant the time by which the caulk settles down. This varies from product to product. It can be from one hour to 2 days. 

If you do not have much time for that then you should buy the ones which take less time to settle down. It is really hard to wait and watch caulks curing after application as you have to be careful that nobody touches it.


If you have faced problems previously of mold and mildew resistance, you are looking for a caulk which resists the two. 

These are a bit costly caulks but as I said earlier, make sure of a good quality over price. 


Elastomeric caulks are blessings if you are applying caulks on surfaces which can move. Elastomeric caulks can easily bend and stretch. Though you won’t be needing them if you work on baseboards, still I told it just to let you know. 


It is the most confusing part. This is where all the buyers get confused. There is only one rule to eradicate your confusion. “Look for the quality, not the price”. 

You already know the features of the silicone and acrylic latex caulks. If anyone offers you the same formula with even a single different feature and low price, that might not be the pure and effective caulk you have been looking for.

The reasonable price for the acrylic latex ones are less than one dollar per ounce and for the siliconized caulks it is under 2 dollars per ounce. Anything above is considered expensive. 


We have discussed a complete guideline along with the best available product reviews. We hope you have gone through them and reached a conclusion. 

Ultimately you have to think about which caulk is the best one for baseboards of all types in any conditions. The siliconized ones are the ones which meet such purpose. We think this is why they deserve the crown. 

Still, your choice might vary according to your requirements. We tried to show you the caulks for all types of baseboards and hope that this hard work will help you realize and choose the best caulk which will work for you. Best of luck with your sealing!

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