10 Best Caulk for Kitchen Sink [Buying Guide 2022]

You must have noticed that caulking is always performed to seal the gaps and edges around the newly installed kitchen sink or bathroom tub.

As much as caulking seems like an easy task, it demands precision, accuracy, and most importantly, the caulking material’s durability.

Best Caulk for Kitchen Sink

Would you want your caulk to let the water seep through it and develop mold and fungi over time?

Or would you like the thought of your caulk not curing properly and stripping off the sides of the sink on exposure to water? Absolutely no!

Caulking may last for a few years, but a time comes when it starts warping around the edges, asking you to replace it.

At that point in life, you’ll need an extensive guideline to help you buy good quality and perfect caulk for your sink or bathroom tub.

This article will walk you through the process of selecting the best caulk for kitchen sink in just a few minutes! So, without further ado, let’s dive in!

Comparing 10 Best Caulk for Kitchen Sink

CaulkMaterialMildew Resistant
GE Sealants & Adhesives 281SiliconeYes Check Price
Flex Shot White SealantBlend of polymersYes Check Price
Loctite Clear Silicone SealantSiliconeNo Check Price
Gorilla Silicone Sealant CaulkSiliconeYes Check Price
Dap 18001 Kwik Seal CaulkAcrylicYes Check Price
Red Devil 0770 SealantAcrylicYes Check Price
J-B Weld 31312 Silicone SealantSiliconeYes Check Price
Sashco Big Stretch SealantAcrylicNo Check Price
Food Grade NSF Silicone SealantSiliconeYes Check Price
Permatex 81158 Silicone SealantSiliconeYes Check Price

1. GE Sealants & Adhesives 281 Advanced Silicone

GE Sealants & Adhesives 281

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Starting with the best sealant in the market. The GE sealants have earned a reputable name, due to their promising results. Find out what sets this product apart from others.

The best thing about this sealant is that it is 100% waterproof that utterly absorbs the water and offers a reliable seal to avert water exposure.

In case of molding and mildew occurs, the GE sealants provide you with 10-year mold-free protection, and that’s simply amazing.

You’ll love to know that this sealant is 40% flexible on every weather condition and is 5X stronger adhesive.

So, what does it mean? It will last longer and offers exceptional durability than some other sealants.

Since this caulk is easy to use, the application wouldn’t take more than 30 minutes.

Experiencing dust storms or earthquakes?

No matter, whatever it is, the GE sealant sticks to the ceilings permanently with its crack and shockproof abilities.

Worried that your kitchenware would get discolored?

The GE sealant takes care of your essentials and won’t blemish the metals, such as bronze, chrome, and nickel.

Interestingly, with its lifetime guarantee, you can trust this caulk with your eyes closed due to its fruitful results.

Unfortunately, you might hate the low odor of this neutral cure formula, which is disgusting to smell. Moreover, it can’t be painted over after the application.

  • Pretty easy and straightforward to use
  • Dries fast with significant results
  • Value for the money
  • Contains smooth, consistent beads
  • Sustainable quality
  • Some found it quite technical to apply
  • The tube runs out quickly
  • Difficult to squeeze

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2. Flex Shot White, Rubber Adhesive Sealant

Flex Shot White

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Got holes, seals broken, and crevices in your kitchen?

The flex shot is right there for you. It is a rubber-thick sealant that sticks to the ceilings and seals almost everything with its powerful ingredients.

Don’t have a caulking gun?

Confused about how to spread the caulk?

The Flex shot comes with a free extension tube, which is best for hard-to-reach areas and makes the spread more precise.

Facing a leak in your plumbing?

You don’t need to call a plumber when you have the potent rubber thick agent that fills the cracks and seals hassle-free by expanding and contracting.

With its four color options available, it’s a mundane task to choose a suitable color that is best for your kitchen as well. 

What’s the exciting feature?

The perfect amount of bead would let you do your smaller projects, and this means no waste, no dripping, and merely no mess. Just buy it and last it for the years to come.

Application is a breeze with the Flex Shot sealant. As it is shown on the TV, you just need to unbox your tube, pluck the nozzle, and start sealing to the desired area.

Additionally, the bead would act as a perfect water barrier and no route for water to enter from anywhere.

  • No prerequisites for a bulky caulk gun
  • Best for your bathtub and faucet
  • Strongly recommended by the professionals
  • Easy to apply, wipe off, and look great
  • Mild and pungent odor
  • It is not water-soluble
  • Might be dangerous and difficult to use

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3. Loctite Clear Silicone Waterproof Sealant

Loctite Clear Silicone Waterproof Sealant

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Hands down to one of the ideal caulk for kitchen sink. Just be with us, and you’ll realize the importance of this formula and why we have considered this product in our roundup list.

Loctite Clear silicone-based caulk has won the hearts of many due to its exceptional qualities and proven results shown to the customers.

What else do you need when the consumers are satisfied? I guess, nothing, right?

What’s more to offer!

This is a multi-purpose, versatile, and flexible caulk that glues to the tile, rubber, metal, and porcelain. Whether you have outdoor or indoor work needed, the Loctite sealant is ideal for any weather temperature.

Worried that your saltwater and freshwater aquariums have broken? Just apply Loctite, which is a simple process to learn and get ready to see the magic over time.

Being a highly-versatile and multi-purpose sealant, this caulk doesn’t limit the kitchen sink. Still, you can also apply to even your broken shoe sole, toys, weather-stripping, appliances, vents, and windows.

However, there are some limitations to this formula that you need to take care of.

You must not apply to the types of plastics such as polypropylene, polyethylene, PVC, and polycarbonate. That said, the sealant is not paintable.

Last but not least, you must not apply to metals such as marble, limestone, brass, copper, magnesium, iron, concrete, cement, and galvanized metals are some of its examples.

Moreover, this formula must not be in contact with the oil-based caulks as well.

  • Another easy to use the product
  • It dries quickly with good results
  • It pertains to no unbearable smell
  • Offers a long-lasting sealing
  • Unsupportive customer service
  • Hard to squeeze
  • The nozzle is not screwed very well

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4. Gorilla White 100 Percent Silicone Sealant Caulk

Gorilla White 100 Percent Silicone Sealant Caulk

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Got a massive leak in your kitchen?

Gorilla White is a silicone-based caulk that has some beneficial properties to fulfill your smaller to large projects.

The caulk works flawlessly in the bath, window, doors, marine plumbing, air sealing, and more.

With its ease of use, the sealant gets ready for water exposure in just about half an hour.

As for the performance, the caulk is mildew and mold-resistant. You’ll be glad to know about the durability that it doesn’t shrink, yellow, or crack for years.

Being a silicon-based caulk, it doesn’t compromise on the quality and delivers the best silicone for kitchen sink that survive the toughest of conditions and varying weather situations. All this is done by contracting and expanding.

Carry it on your tool pouches, as this sealant does not only restrict to your kitchens but has shown significant results for outdoor purposes as well.

In order to cater to your needs, The Gorilla White sealant comes in 2 bottles of different quantities, so if you have a large project to conduct then the 10oz cartridge would be a better option for you.

  • Seals perfectly almost everything
  • Easier to apply and dries quicker than other beads
  • Complete waterproof and doesn’t crack
  • The smell would go away after some time
  • It has a powerful vinegar smell
  • Some find it technical to apply
  • A caulking gun is a must with this sealant

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5. Dap 18001 Kwik Seal Caulk

Dap 18001 Kwik Seal Caulk

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Every homeowner wants that perfect sealant that bonds like glue to their crevices, holes, and gaps, which can last for years. Dap 18001 might have listened to your talks.

How to apply?

Just bring the caulk gun, attach the strip, and here you go with your first-ever application with Dap seal caulk.

It is not a complicated process, or if you don’t have a gun, then it is recommended to squeeze and spread it through your fingers.

What’s the coolest part?

The Dap caulk sealant is mildew and mold resistant, so no matter how harsh the temperature, it would support you through the thick and thin.

When it is applied, stay worry-free, as the watertight seal won’t let the water emerge and accept any leaks. Also, adhesion and flexibility are some of the reasons behind a packed seal.

Another exciting thing is that it is paintable, contains a low odor, so you don’t have to run anywhere or cover your noise after the application.

Last but not least, the sealant adds more convenience, when it comes to the easy water-clean up.

  • It is pretty flimsy and is easy to use
  • The tube is squeezed correctly and gives a perfect caulk
  • It comes with several color options for your convenience
  • Dap offers an incredible sealing effect on the gaps, holes, and crevices
  • Very effective caulk
  • It can create a mess when squeezed
  • According to some people, the dryness takes a lot of time

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6. Red Devil 0770 Lifetime Ultra Premium Elastomeric Acrylic Latex

Red Devil 0770 Lifetime Ultra Acrylic Latex

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The Red Devil has produced an elastomeric Acrylic sealant that will take the best care of your spaces around the newly installed sinks and tubs.

We will go through its features that make it the best caulk for an under-mount sink.

Red Devil is a renowned brand, and its products are highly durable.

This sealant is multi-purpose and can be used to seal a variety of surfaces, not only kitchen sinks and bathroom tubs but also masonry, metals, bricks, wood, and plastic.

Its adhesive properties are quite wide-ranged, which makes this very versatile. Starting from windows and doors to tiles and marble surfaces, Red Devil is made for all.

No need to worry about painted surfaces anymore because this caulk can be used to seal off painted and or unpainted surfaces. You just must clean the dust and any mold off the surface before application for superior results.

With time, caulks become home to different kinds of bacteria, mildew, and molds but Red Devil has a unique formula that eliminates any probability of growth of microbes. It is known as ‘Homeshield Antimicrobial Protection’.

The preceding attributes make this sealant last for a lifetime.

The formula of this sealant is made to kill microbes which is fundamentally the reason for the cracking and breaking down of a caulk; another reason being the incompatibility with different kinds of surfaces.

Since Red Devil is a multi-purpose sealant, it is made to attach to various types of surfaces.

  • The multi-purpose sealant
  • Compatibility with different surfaces
  • Works on both painted and unpainted surface
  • Comes in various colours to match your surface
  • Requires time to cure and dry out

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7. J-B Weld 31312 All-Purpose RTV Silicone Sealant and Adhesive

J-B Weld 31312 All-Purpose RTV

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It’s time to introduce the best silicone for kitchen sink that will keep your sink intact and sealed adequately for an extended period.

J B Weld has gained good popularity because of its hardware products and has developed high credibility.

This room temperature vulcanized adhesive is not only used for caulking sinks of kitchen and bathrooms but also used to attach any mechanical parts and other indoor as well as outdoor sealing purposes.

It is an all-rounder product that is a must-have for all your hardware and household needs.

The silicone bead must be spread evenly across the periphery of the sink and left for about 24 hours to cure. On curing the silicone, the bead becomes very hard and white on drying.

Its formula repels water and the development of any kind of mold and mildew.

This rigid material resists all the weather and will not fall apart very quickly.

The adhesive can work on any kind of surface ranging from plastic and metal to bricks and glass. There is no limitation to its usage.

The only thing required of you is to carefully follow the application process of silicone.

The surface must be thoroughly cleaned and wiped off of any dust and old caulk residue before J-B Silicone is applied.

Some people may find the white color of sealant a little problematic as it may not match the color of all the surfaces.

As a solution to this problem, you can sprinkle some sand while the bead is still wet and let it cure.

You can see the range of colors offered by J-B as well.

  • All-purpose and can be used as sealant and adhesive for a variety of surfaces
  • Results in a severe, weather and mold resistant caulk
  • Water-resistant and takes only 24 hours to fully cure
  • It takes about an hour to set, so the pieces to be sealed need to be held together tightly for some time

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8. Sashco Big Stretch Acrylic Latex High-Performance Caulking

Sashco Big Stretch Acrylic Latex Caulking

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Sashco has done a brilliant job in finding the solution to frequent cracking of the caulk, and that is flexibility!

Yes, Sashco’s high-performance caulk material is made to be flexible so it can never crack.

Even after many years, the caulk remains pliable and resists cracks and fissures. The stretchability makes it the perfect caulk for kitchen sink on the market.

The caulk can withstand any kind of movement and bends because the final cured caulk is not brittle and crackable. It can be twisted, bent, and stretched to whatever extent. This property expands the range of its applications.

Interestingly, you can use it on door hinges, windows, and any kind of indoor as well as outdoor parts.


You don’t have to find the caulk that will match the color of your surface because the Sashco sealant is paintable and can be colored according to your needs. The paint will adhere to the caulk’s surface efficiently and will not wear off at all.

If you don’t want to go through the extra hassle of painting the caulk then just select a color from the 12-color range offered by Sashco, including ‘clear’.

The caulk bottle is straightforward to use, unlike the usual tubes which need pressing, the pump attached behind the bottle squeezes out even beads and makes your seal cover all the spaces adequately.

It is weather-friendly and water-resistant. Use it outside or inside; the air conditions do not affect the caulk cure time.

  • Stretchable and elastic to resist cracking
  • Can be painted
  • Comes in 12 different colors
  • Easy to apply
  • Multi-purpose sealant
  • The formula does not contain anti-mildew elements

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9. Food Grade NSF RTV Silicone Sealant Adhesive, Sil-Bond

Food Grade NSF RTV Silicone Sealant

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Sil-bond has made a high-performing and high-strength silicone sealant that has many properties which will be discussed in detail shortly.

This sealant will particularly interest those who want a food-grade adhesive to be used inside refrigerators, broken dishware, pottery, fermenters, coffee machines, etc.

The sealant is odorless and thus can be used in the kitchen for various purposes like fixing a broken ice cube tray, fixing a juicer machine, and sandwich maker, you name it!

The sealant is weatherproof and water-resistant, which makes it usable for indoor as well as outdoor applications. It is UV radiation resistant so the sun can not bother the caulk in any way.

But wait, Here is more!

The sealant has a movement capability of 25%, which makes it flexible and long-lasting as the stretchability reduces the cracking and breaking of the cured bond.

Moreover, it is non-shrinking and can work well in a wide temperature range.

The sealant comes in white color, which may be bothersome for some people.

However, one thing that Sil-bond has assured us is that it is non-yellowing and odorless.

The all-purpose caulk can be used to seal many parts such as kitchen and bathtubs, roofs, doors/windows, car parts, concrete, countertops, and much more.

Last but not least, Sil-bond adhesive is VOC compliant, which means it is environmentally friendly.

  • Food grade sealant works for kitchen appliances, food containers, refrigerators, etc.
  • Environment friendly
  • Elastic and stretchable and allows up to 25% movement
  • The non-yellowing surface does not give off an unpleasant look with time
  • Available in white colour only

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10. Permatex 81158 Black Silicone Adhesive Sealant

Permatex 81158 Black Silicone Adhesive Sealant

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Permatex will take care of all your mechanical hardware caulking needs as well as electrical connections, and related sealing needs very effectively.

A black-colored silicone sealant that can be used for a wide range of applications starting from your indoor household needs to outdoor roofs, vinyl, and car parts repairing needs. This has got your back in all conditions.

The formula of the material makes it super strong and tough on curing, which makes it ideal for heavy applications like mending machine parts and taking care of car parts.

Moreover, it is waterproof and weather-resistant. No need to worry about the seal breaking off any time soon because this is one tough fellow.

The caulk will carefully fill in all the spaces between the parts to be attached, leaving no room for water seepage and mold formation. It tightly puts two things together for an extended period.

May it be concrete, marble, wood, plastic, glass, horizontal, or vertical surfaces, this will stick things together because it knows how the job is done!

Permatex is made to handle temperatures between 75oF to 450oF. It is also oil and grease resistant so it can be easily used in vehicles and other oily surfaces like pipes.

Forget about it stripping or warping off the edges because Premature is here to seal!

Too bad it only comes in black color.

  • Tough sealant which can seal mechanical as well as electrical parts
  • Oil resistant caulking 
  • Weather and water-resistant 
  • All-purpose sealant to be used for indoor as well as outdoor applications
  • Only available in black colour

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Buyer's Guide:

Caulk for Kitchen Sink Buying Guide

How to choose the best caulk for kitchen sink:

As a homeowner, this is a crucial task to invest in a suitable caulk to avert your backsplashes, countertop, and sink from water draining, crevices, and leakages.

However, if you're facing a similar situation like this, you shouldn't worry at all.

Choosing an ideal caulk for kitchen sink would do your job significantly. Just remember to follow and adhere to some steps, and nobody could stop you from making a wise decision. So, let's dig in deeper!

Caulk Types:

You can easily find latex and silicone caulks in the market. They are readily and commonly used by homeowners due to their strength and durability to serve for the years to come.

Caulks has two ways to use. A cartridge and a squeezed tube. Using a larger cartridge with a caulk gun would result in a consistent flow of bead caulks.

On the other hand, the squeezed tube is used for smaller tasks, and that's pretty convenient.

Here are some things that you need to know about Silicone and Latex:


  • It lasts longer than other caulks
  • Silicone has an awful odor
  • Flexible enough to cater to mild temperatures and harsh weather conditions
  • Use on gaps, which expand or remain the same
  • It can work on non-porous surfaces
  • Can be used in malls, airports, and residential areas
  • It is cumbersome to apply or replace


  • Simple to apply and replace
  • Easy to clean with soap and water
  • Suitable for both porous and non-porous surfaces
  • Weakens in harsh and unsuitable weather conditions
  • Deemed as best for constant crevices, and leaks
  • Moderate odor
  • Commonly used in wet areas

What type of Specialty Caulk is suitable for your kitchen sink?

For your kitchen sink, you would need a kitchen caulk that is mildew and water-resistant. Also, the polymer caulk and siliconized acrylic would be a better fit too.

Here are some key features of the kitchen caulk:

  • Countertop installation
  • Tile maintenance
  • Sink installation
  • Exposure to water a few minutes after application

Things to Consider Before Applying New Caulk

The cleaning of old caulk is a tedious task, but your new caulk must last longer. So, after cleaning the surface, you need to make sure you have the right kind of caulk for the sink material.

Silicon-based caulk is best for stainless steel and other metallic sinks.

On the contrary, for a ceramic sink which is usually found in bathrooms, you would require a latex-based caulk.

Usually, white or clear caulk around the sink works well and doesn't give off an unsightly look. However, many companies make caulks in different colors that can match the color of your surface.

Some caulks are paintable as well. So, make sure you read the label before buying the caulk.

How can you apply a new caulk?

So, now you have chosen the right kind, now you're required to pick the suitable color that would match your sink or countertop. Mostly, silicon-based comes in a clear finish, but you would want in a black, grey, almond, tan, and white.

Applying a new caulk can be an easy task if it's done with a caulk gun. So, it is advised to use a caulk gun and apply a strip.

Once, you apply the strip, using the caulking tool or even your finger; spread it carefully to the borders of the sink.

This way, it will create a waterproofing barrier and resist any water to emerge.

Furthermore, here's something you need to take care of. When applying the tube, do not overapply.

Otherwise, the caulk sealant would be noticeable and that might screw up the look of your kitchen sink.

The best way to prevent the ruined look, due to the amount of exposure of silicon-based caulk. Apply the painter's tool on the perimeters of the countertop, so that you limit the exposure.

Finally, the mission accomplished, now take a seat and let it dry for some time and abandon using the sink for approximately 24 hours.

How to clean an existing caulk?

In order to prevent crevices, and water leaks from your countertop and sink, it is advised to regularly clean the surroundings of your sink and countertop, this way no molding would occur.

Also, you'll be required to spray the solution of vinegar and water in 2-3 months for silicon-based caulk. Sadly, if you have a tough stain, then you can leave the solution to that specific area for around 10 minutes to get relieved.

Caulking is not as easy as it sounds. It requires some practice and expertise to carefully put together two things for a lifetime.

Using an ordinary caulking material will only cause you trouble and ask you to remove the caulk and replace it with new caulking quite often. So why not give this section a read and save yourself from buying the wrong caulking for your kitchen sink.

Frequently Asked Questions:

How to replace the silicone around sink?

This is the most popular question, and we will walk you through the step of removing, cleaning, and replacing the caulk around the sink. For the process, you would need to gather a few things such as water, cloth, paper and towels, acetone, and a scraper. The first step is to soften the existing caulk by using a damped cloth.

For water-soluble caulk, the water-soaked cloth will work well, but for silicone-based caulk, you’ll need to use acetone or alcohol. Once the caulk is thoroughly soaked and wet, it will soften. Now you can use a scraper to carefully remove the caulk.

Make sure you keep your hands safe. You also need to avoid scratching the sink corners as it will leave marks around your sink. Easy right?

How many tubes of caulk do I need for kitchen sink?

Usually, one tube is enough to caulk the edges of your kitchen sink. However, for a more significant project like a bathroom tub, you may need more than one tube. The amount of material inside the tube is mentioned by the manufacturers so you can always check it out before buying.

When do I hire a professional for this purpose?

You may require the replacement of an old caulk after some time to prevent mold formation and water seepage in your sinks. Caulking is not a difficult task. It just requires care, attention, and patience.

If you practice a little, you can do a good job and would not need to hire a professional. However, it all depends on you. A professional will do the job more accurately, and the caulk can last longer if appropriately applied.


Installing the sink and tub will always require caulking because you need to protect water from seeping into the edges and giving rise to mold and fungi inside the spaces.

Caulk can ideally last for a lifetime, but it starts to crack after a few years due to frequent water exposure.

You will need to find the new caulk to properly seal off the edges again, and for this, you need the best caulk material available in the market.

Depending on your surface material and type of application, several caulks and sealants can do the job for you.

This list will be your guideline to select the best caulk for kitchen sink.


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