Top 6 Best Caulk For Trim Reviews 2021: Say Farewell to Cracks


With so many products available right now, finding the best caulk for trim that suits your needs is quite tricky. You have to consider many different factors and avoid wrongly advertised caulk as well.

But all those difficulties are just the story of the past after you read our article. We have covered the top caulk for trim that we think will fulfill most requirements.

Image by Meredith Heard

We also answered some of the most common questions at the end of this review. If there are any issues that we have not to clarify yet, feel free to leave a comment, we are all ears.

Top 6 Best Caulk For Trim Reviews

#1. Dap Alex Acrylic Latex Caulk – The Quickest Solution


If you are in a hurry and want to use your house right away, Dap Alex Acrylic Latex Caulk Plus is the right product for you. 

Once you open the cartridge, you will immediately notice that this caulk has a very low odor. And this smell is not at all offensive. Thus, you will not feel discomfort while using it.

When finishing the job, there is a small-cap that you can use to close the top if a little caulk is left. You should store it somewhere that has low humidity and average temperature for later use.

Now, you just need to wait a short period, approximately 30 minutes. The caulk will not stink and be hard enough to be exposed. That is when you can comfortably use your room. This cure time is the shortest that you can find on the market today.

The biggest downside of this product is it does not have mildew and mold resistance. It would be best not to use this caulk in humid places, such as bathrooms and kitchens.


  • 35-year durability guarantee
  • Good value
  • Paintable
  • Water clean-up
  • 100% American


  • Not easy to squeeze
  • Tend to yellow

#2. DAP DYNAFLEX Black Raw Building Material – Best For Sealing Large Cracks


A large crack can be sweet home for bugs and other insects. If that is the case, it would be best to use DAP DYNAFLEX Black Raw Building Material.

Its viscosity flow is perfect when you need to fill gaps wide between 1/4 to 1/2 inches. But this caulk can even create a web when sealing joints up to 2 inches large.

This product contains cyanoacrylate, which will create a strong bond between two different surfaces. This bond will prevent the facades from moving and widen the gap. 

Another critical factor to consider when choosing the right caulk is the type of surface. Although it is advertised as compatible with all materials, we found out that it only works best with natural and synthetic substances.

Besides, you need to put a potent force on the container to squeeze the caulk out. 


  • Can be used both outdoors and indoors
  • Easy to apply
  • Dry in two hours
  • Water resistance
  • Not gooey


  • Defective tube
  • Chemical smell

Read more: What Are The Best Caulk For Windows?

#3. GE Sealants & Adhesives Paint Projects Max Shield Painter’s – Best For Long Term Use


If you want the caulk that can last as long as your house, GE Sealants & Adhesives Paint Projects Max Shield Painter’s will not make you disappointed.

In addition to latex acrylic, this product also contains polymer, meaning its durability is enhanced. The caulk can easily prolong up to 60 years, which is the best that you can find right now.

To adapt to many changes that can happen in the future, this caulk can stretch over 600% of its original size. You never have to worry about parts displaced after a long time in your home.

It comes in white colors, which will not turn yellow over time. That means you do not have to think about repainting them regularly.

Unlike DAP’s caulk, this product does not include a cap to seal the tube and keep unused parts from drying out. It may cost you extra to buy it.


  • Feel smoother than most silicon
  • Dry quickly
  • Look great
  • Reasonable price
  • Water clean-up capability


  • Not super sticking
  • Not work well with plastic

#4. DAP INC White Alex Plus Acrylic Latex Caulk – Best For Large Projects


Suppose you need to work on a large project, such as refurbished your entire house. In that case, you should consider using DAP INC White Alex Plus Acrylic Latex Caulk.

The cartridge has a capacity of up to 10.1 fl. oz. (300mL) and the company sells two packs for one order. This is enough for the caulk to reach approximately 192 feet in length with a joint depth and width are 1/8 inches.

Furthermore, this product uses multi-purpose latex acrylic with silicone substances. That means you can use it on any material that you like!

For it to look well regardless of what material you use it with, DAP provided the product in white. This color is neutral, which means it pairs well with both hot and cold colors.

This caulk is a little thin compared to what other products we mentioned in this article. Still, it is thick enough to complete the job well.



#5. Flex Shot Rubber Adhesive Sealant Caulk – Best Color Options


Flex Shot Rubber Adhesive Sealant Caulk has many different colors for you to pick from. Moreover, you can paint over other colors if you change your mind in the future.

By default, this product comes in 4 already engaging tones: white, almond, black, and clear. The quality will remain the same no matter which color you pick.

Its main ingredient is acrylic caulk. The most significant advantage of this chemical over pure silicone is that it can color easily afterward with any paints you prefer.

Acrylic caulk is also easier to apply and correct later. If you are not good at caulking, this is a huge advantage since you may make some mistakes.

Regardless, the caulk’s dry and cure time is very long. Briefly, it will form a skin in 20 minutes and need roughly one to two days to cure fully.


  • No need caulking guns
  • Strong adhesion
  • Look good
  • Harmless for skin
  • Come with an easy-to-use nozzle


  • Produce a messy process
  • Offensive smell

#6. GE Sealants & Adhesives Paint Projects Painter’s Pro – Best Mold And Mildew Resistance


Are you finding the best product to prevent mold and mildew? If yes, you should consider adopting GE Sealants & Adhesives Paint Projects Painter’s Pro.

This caulk contains a high concentration of biocide, especially fungicides and mildewcides. These two chemicals are very good at avoiding mold and mildew growth on the caulk. 

The prerequisite for mold to grow is moisture. That is why the company chose to add silicon substances to this product. Thanks to that decision, this product is 100% waterproof. 

Furthermore, pure silicon is also known as a flex substance. For that reason, the caulk is very hard to crack under thermal expansion and can last at least 50 years.

To use this item, you need a caulking gun. If you do not have it yet, remember to order one, too.


  • Very low tack
  • Pliable
  • Good adhesive property 
  • Cure quickly
  • Excellent price point


  • May shrink when dry
  • Should not use for exteriors

Frequently Ask Questions (FAQs)

Should You Caulk Around Trim?

Yes. But it would be best if you painted the trim first. Applying caulk at painted trims joints or where they adhere to walls will give a smoother, more uniform finish to them.

You also should use caulk if there are any gaps between the trim and the wall. Using it can cover unsightly space with beautiful lines. It also provides a finishing touch and improves the lifespan of the walls and trims. 

Should You Caulk The Top Of Baseboards?

We highly recommend you do not caulk the top of baseboards in almost all situations. Instead, you should nail it more tied wherever it is separated from the wall. 

You may argue that a caulked baseboard looks way better than using nails. But in the long term, the caulk will eventually discolor and pull away from the wall. Then the baseboard will seem much worse than it would without any caulk.

The only case you should caulk is when the wall was painted a similar color to the trim. 

Do You Caulk Baseboards Before Or After Painting?

It depends on whether you are good at caulking or not. If you are pretty good, you can caulk last. If not, do it before painting to fill gaps.

That way, you do not need to worry about having to touch up paint over the caulk that leaks out too much onto the painted wall. 

Another important note is if there is a lot of contrast between the wall and trim, you should paint the wall last to tape the top of the baseboards later to get a smooth line. 

How Far Does A 10 Oz Tube Of Caulk Go?

A 10 Oz Tube can reach around 96 feet with a joint depth and width are 1/8 inches.

For other cases, use the chart below to estimate how much 10 Oz tube caulk you will need for your project. Unit of Joint Depth and Joint Width is inch, while the result is feet.

For joint depths surpassing 1/2 inches deep or width, you should use a caulk backer rod to determine.

Should You Caulk Interior Trim?

In most situations, you need to seal all trim joints. In addition to preventing dampness from entering the joint and crack, it also makes the overall look of your interior more appealing.

The only exception is when the trim goes up after the siding is placed, which creates a large void that should not be caulk. We need air circulation behind these baseboards and an opening to act as an outlet if the water goes beneath the boards.

Does Caulking Baseboards Keep Bugs Out?

Bugs often come to your house when the weather outside is terrible for them. The spaces around the baseboard and cracks are the path they use to infiltrate your home. Those places are their nest, too.

 A crack can be a sweet home for bugs and other insects
A crack can be a sweet home for bugs and other insects

So if you can seal up cracks in your house by caulk, can you say goodbye to the bugs? Theoretically, yes. But this method is only effective if every gap is closed up completely.

Furthermore, for every bug nest you find out, there are maybe three or four others that you do not. These nests mostly hide behind walls, under baseboards, etc. 

In short, caulking baseboards can prevent bugs from intrusion into your house, but it cannot be the only line of defense. Another cheap way you can try is using pesticide spray. 

Still, this is the last option for those who can not afford professional exterminators.

Do You Caulk Between Trim And Floor?

It depends on what flooring material is in your house. 

You ought to not do it for carpeting since caulk can ruin it. For sheet vinyl, vinyl plank, hardwood, only caulk if there are unsightly cracks that need to fill up. 

Nevertheless, you better be good at caulking, so it does not look like you are trying to cover up a huge mistake.

The best method is not using caulk. Instead, you should adjust the bottom of the trim to be nearly level with the floor, or have a small gap if using carpet.

You can achieve this quickly by thoroughly using a brush to mark where the bottom baseboard should be cut. 

Final Thoughts

And above are the top 6 best caulk for trim reviews. We hope that now you can make a wise decision for yourself. If not, you should clarify your needs and reread our article to make the best choice.

Suppose you still have some questions. In that case, you can ask us in the comment section below. We will solve your problems as soon as we can. As always, thanks for reading!

Top 6 best caulk for trim