The Top 8 Best Caulking for Kitchen Sinks

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When it comes to finding the best caulking for kitchen sinks, it’s like searching for the missing piece of a puzzle that will ensure everything fits seamlessly. The right choice can make a significant difference in the longevity and functionality of your sink area.

But with so many options available, how do you navigate through the sea of caulks to pinpoint the one that suits your needs best? Let’s unravel the mystery together and discover the key factors and products that will lead you to the ideal caulking solution for your kitchen sink.

How We Tested the Best Caulk for Kitchen Sinks

In our evaluation of the best caulk for kitchen sinks, we rigorously tested its waterproof and mold-resistant properties. We wanted to ensure that the sealant could withstand the constant exposure to moisture without degrading over time.

Using a caulk gun, we applied a precise bead of latex caulk along the seam where the kitchen sink meets the tile countertop. This allowed us to simulate real-life conditions and assess how well the caulk sealed potential leak points.

Our testing also involved examining how the caulk prevented mold and mildew growth, crucial for maintaining a hygienic kitchen environment. We made sure to check the flexibility of the caulk to withstand any movement without cracking, ensuring long-lasting effectiveness.

Safety around food was a top priority during our evaluation, guaranteeing that the caulk used posed no harm in a kitchen setting. Overall, our thorough testing process aimed to provide you with the best options for home improvement and leak prevention in your kitchen sink area.

Our Top Picks

Best Overall

Gorilla Waterproof Caulk & Seal 100% Silicone Sealant, 10oz Cartridge, Clear (Pack of 1)

Gorilla Waterproof Silicone Caulk & Seal 

It is waterproof, shrink- and crack-proof, and rain-ready.

Clear finish is barely noticeable

Won’t yellow or crack over time due to formula

Best Value

Dap 18510 12 Pack 10.1 oz. Kwik Seal Plus Premium Kitchen and Bath Adhesive Sealant, White

DAP Kwik Seal Plus White Premium Caulk

Creates a 100 percent waterproof formula for porcelain, metal, and more

Applies easily and forms a strong and lasting bond.

Takes over 24 hours to be fully dried.

Best for Small Repairs

GE Advanced Silicone Caulk for Kitchen & Bathroom - 100% Waterproof Silicone Sealant, 5X Stronger Adhesion, Shrink & Crack Proof - 10 oz Cartridge, Clear, Pack of 1

GE Advanced Silicone Kitchen & Bath Sealant 

Suitable for a variety of materials; adheres to metals, plastic, wood, etc.

Flexible formula is made to last long-term .

Formula isn’t paintable; may not suit color schemes.

The Top 8 Best Caulking for Kitchen Sinks

1. BEST OVERALL: Gorilla Waterproof Silicone Caulk & Seal 

2. BEST VALUE: DAP Kwik Seal Plus White Premium Caulk

3. BEST FOR SMALL REPAIRS: GE Advanced Silicone Kitchen & Bath Sealant 

4. BEST MILDEW PREVENTION: Mold Armor Silicone Mold Free Caulk & Sealant

5. BEST QUICK-DRYING: GE Supreme Silicone Kitchen & Bath Sealant

6. BEST PAINTABLE: Red Devil Kitchen & Bath Siliconized Acrylic Caulk

7. BEST FOR SEAMS: DAP Kwik Seal Ultra White Advanced Siliconized Caulk

8. ALSO GREAT: Loctite Polyseamseal Acrylic Caulk with Silicone

Gorilla Waterproof Silicone Caulk & Seal

Best Overall
Gorilla Waterproof Caulk & Seal 100% Silicone Sealant, 10oz Cartridge, Clear (Pack of 1)

Reasons to Buy

Reason #1 – Dries completely waterproof, shrink- and crack-proof, and rain-ready.

Reason #2 – Clear finish is barely noticeable; suitable for applications around tubs and tiles.

Reason #3 – Won’t yellow or crack over time due to the mold- and mildew-resistant formula

Reasons to Avoid

Reason #1 – This formula isn’t paintable; may not be ideal for some users’ needs.

For those seeking a reliable and long-lasting caulking solution for their kitchen sink, the Gorilla Waterproof Silicone Caulk & Seal stands out as the best choice due to its mold- and mildew-resistant formula and durable, flexible finish. Gorilla’s clear sealant caulk is made of 100 percent silicone, ensuring it adheres easily to most bathroom surfaces, creating a barrier that resists mold and mildew. Unlike some siliconized caulks, this product remains flexible without shrinking or cracking.

It dries in just 30 minutes, making it suitable for quick repairs or full bathroom installations. The Gorilla caulk & seal is praised for its strong bond, barely noticeable finish, and long-lasting flexibility. Although it’s not paintable and has limitations on certain surfaces, its waterproof and durable properties make it an excellent choice for kitchen sink caulking needs.

Best For: Homeowners looking for a reliable and long-lasting caulking solution that resists mold and mildew in bathroom areas.

Product Dimensions 10 x 1.5 x 1.5 inches
ColorClear
BrandGorilla
Item Weight0.01 Pounds
Liquid Volume10 Fluid Ounces
Item FormLiquid

DAP Kwik Seal Plus White Premium Caulk

Best Value
Dap 18510 12 Pack 10.1 oz. Kwik Seal Plus Premium Kitchen and Bath Adhesive Sealant, White

Reasons to Buy

Reason #1 – Made with a paintable, Microban-infused formula for fighting mildew, mold, and fungal growth.

Reason #2 – Creates a 100 percent waterproof formula once fully dried; suitable for ceramic and plastic tile, porcelain, metal, and more.

Reason #3 – Applies easily and forms a strong and lasting bond.

Reasons to Avoid

Reason #1 – Takes over 24 hours to be shower-ready; longer drying time compared to average caulk for a shower

Wondering which caulk offers both affordability and effectiveness for your kitchen sink? Look no further than the DAP Kwik Seal Plus White Premium Caulk. This siliconized latex caulk not only provides a 100 percent waterproof barrier but also includes Microban for antimicrobial protection against mold, fungus, and mildew.

Its paintable formula, although requiring 2 hours to dry before painting and 24 hours before exposure to water, offers outstanding adhesion to various surfaces like ceramic and plastic tile, porcelain, metal, and more. Easy to apply and clean up with just a wet rag, this caulk dries slightly faster than indicated, allowing for quicker painting.

With its quality, affordability, and effectiveness, the DAP Kwik Seal Plus is a great value option for your kitchen sink caulking needs.

Best For: Those looking for an affordable and effective caulking solution for their kitchen sink.

Product Dimensions8.3 x 6.3 x 12 inches
BrandDAP
Item Weight1.1 Pounds
Item FormPaste
Water Resistance LevelWaterproof

GE Advanced Silicone Kitchen & Bath Sealant

Best for Small Repairs
GE Advanced Silicone Caulk for Kitchen & Bathroom - 100% Waterproof Silicone Sealant, 5X Stronger Adhesion, Shrink & Crack Proof - 10 oz Cartridge, Clear, Pack of 1

Reasons to Buy

Reason #1 – Durable silicone formula dries waterproof and lasts for over 10 years.

Reason #2 – Suitable for a variety of materials; adheres to metals, plastic, wood, glass, tile, and fiberglass.

Reason #3 – Flexible formula is made to be shrink- and crack-proof for long-term dependability.

Reasons to Avoid

Reason #1 – Formula isn’t paintable; may not suit some bathrooms’ current color schemes.

Ideal for quick fixes and small repairs around kitchen sinks, the GE Advanced Silicone Kitchen & Bath Sealant offers a durable and flexible solution for lasting waterproof sealing. With options of 2.8-ounce or 10.1-ounce tubes, this 100 percent silicone formula is designed to withstand challenging spaces, remaining shrink- and crack-proof for up to 10 years.

Adhering to various materials like metals, plastic, wood, glass, tile, and fiberglass, it dries in just 30 minutes. While it may not suit all bathroom color schemes as it isn’t paintable, this clear silicone provides a strong and barely visible seal, making it incredibly convenient for small repairs.

Best For: Small repairs and quick fixes around kitchen sinks.

Package Dimensions11.16 x 1.89 x 1.85 inches
ColorClear
BrandGE
Item Weight0.73 Pounds
Liquid Volume10.1 Fluid Ounces
Full Cure Time24 Hours

Mold Armor Silicone Mold Free Caulk & Sealant

Best Mildew Prevention
MOLD ARMOR 100% Silicone Mold Free Caulk & Sealant (White), 5.5 Oz.

Reasons to Buy

Reason #1 – Silicone formula is 100 percent resistant to mold and mildew; won’t yellow, shrink, or crack.

Reason #2 – Can be applied to various surfaces like glass, wood, granite, ceramic, and metal.

Reason #3 – Convenient squeeze tube for easy application and quick drying time.

Reasons to Avoid

Reason #1 – Initial concern with the color of the caulk upon application.

When considering the best caulking for your kitchen sink, the Mold Armor Silicone Mold Free Caulk & Sealant stands out for its 100 percent mold and mildew resistance, making it a durable and effective choice for long-term protection. This silicone formula contains fungicides that ensure a waterproof bond and prevent mold and mildew growth for up to 20 years.

It can be applied to various surfaces like glass, wood, granite, ceramic, and metal. The convenient squeeze tube allows for easy application, and it becomes water-ready in just 30 minutes, fully drying within 24 hours. While there might be initial concerns with the color of the caulk upon application, this product proves to be a reliable option for creating strong and flexible barriers in your kitchen sink area.

Best For: Those looking for a caulking solution with 100 percent mold and mildew resistance for long-term protection in high-moisture areas like kitchen sinks.

Product Dimensions1.5 x 2.31 x 9.5 inches
Item Weight4.6 Ounces
ColorWhite
BrandMold Armor
Item FormPaste
Surface RecommendationShower,Tub,Sink
Water Resistance LevelWaterproof

GE Supreme Silicone Kitchen & Bath Sealant

Best Quick-Drying
GE Supreme Silicone Caulk for Kitchen & Bathroom - 100% Waterproof Silicone Sealant, 7X Stronger Adhesion, Shrink & Crack Proof - 2.8 fl oz Tube, Clear, 1 Pack

Reasons to Buy

Reason #1 – 100 percent silicone formula dries completely waterproof and mold-resistant for long-term use.

Reason #2 – The flexible formula shouldn’t shrink, crack, or yellow with use.

Reason #3 -Affordable price point compared to other caulks on the market.

Reasons to Avoid

Reason #1 – Not a paintable formula; may not fit into some bathroom spaces’ current color schemes.

If you’re looking for a kitchen sink caulk that dries quickly and maintains a waterproof, mold-resistant barrier without shrinking or cracking, the GE Supreme Silicone Kitchen & Bath Sealant is the top choice. This special formula doesn’t just dry fast – in only 30 minutes – it also ensures a long-lasting seal that won’t yellow over time.

The flexibility of this silicone caulk prevents it from shrinking or cracking, providing a durable solution for your kitchen sink. Users have praised its easy application and clean-up, making it a convenient choice for DIY projects. While it may not be paintable, its affordable price point and reliable performance make it a standout option for those seeking a quick-drying caulk for kitchen sink applications.

Best For: DIYers looking for a quick-drying kitchen sink caulk that provides a long-lasting, waterproof, and mold-resistant seal without shrinking or cracking.

Package Dimensions ‏11.46 x 2.13 x 1.38 inches
ColorClear
BrandGE
Item Weight2.8 Ounces
Liquid Volume2.8 Fluid Ounces
Full Cure Time24 Hours

Red Devil Kitchen & Bath Siliconized Acrylic Caulk

Best Paintable
Red Devil 0406 Duraguard Kitchen & Bath Siliconized Acrylic Caulk, 10.1 oz, White

Reasons to Buy

Reason #1 – Paintable formula won’t crack or stretch; keeps applied paint looking fresh and crisp.

Reason #2 – Made with a HomeShield Antimicrobial protection that keeps the formula mold- and mildew-free.

Reason #3 – Can be applied to porcelain, ceramic, marble, glass, plastic, vinyl, fiberglass, metal, and wood.

Reasons to Avoid

Reason #1 – Has the longest drying time of any caulk on this list; may not be ideal for some users.

For those seeking a caulk that creates a strong seal for kitchen sinks while allowing for easy painting, Red Devil Kitchen & Bath Siliconized Acrylic Caulk stands out with its paintable formula. This caulk offers a paintable formula that won’t crack or stretch, ensuring your applied paint looks fresh and crisp.

With its HomeShield Antimicrobial protection, it keeps mold and mildew at bay, making it a durable choice for kitchen sink areas. Red Devil Caulk can adhere to various surfaces like porcelain, ceramic, marble, glass, plastic, vinyl, fiberglass, metal, and wood, providing a versatile waterproof barrier. While it may not be the quickest drying option, its low-VOC formula appeals to those mindful of chemicals, making it a reliable choice for your kitchen sink caulking needs.

Best For: Individuals looking for a caulk that provides a strong seal for kitchen sinks and allows for easy painting.

Product Dimensions 2 x 2 x 11.25 inches
ColorWhite
BrandRed Devil
Item Weight16 ounces
Liquid Volume10.1 Fluid Ounces
Item FormPaste

DAP Kwik Seal Ultra White Advanced Siliconized Caulk

Best for Seams
DAP - Kwik Seal Ultra Biscuit 5.5 oz Premium Siliconized Sealant - Pack of 2

Reasons to Buy

Reason #1 – Siliconized, waterproof formula repels stains, dirt, and water for protection against mold and mildew.

Reason #2 – Very quick drying time; the formula is water-ready within just 4 hours.

Reason #3 – Stain-proof formula won’t cause any yellowing; shouldn’t crack with long-term exposure to moisture.

Reasons to Avoid

Reason #1 – Formula isn’t paintable; may not be ideal for some shoppers’ preferences.

Highlighting its siliconized, waterproof formula, the DAP Kwik Seal Ultra White Advanced Caulk is the ideal choice for those seeking long-lasting protection against mold and mildew in their kitchen sink. This caulk is specifically designed to provide a seamless and waterproof seal for seams, ensuring a clean and professional finish.

With a quick drying time of just 4 hours, you can have a water-ready seal in no time. The stain-proof formula prevents yellowing and cracking, even with long-term exposure to moisture. Additionally, the low-odor and low-VOC formula make it a safe choice for those who are environmentally conscious. While it may not be paintable, the DAP Kwik Seal Ultra White Advanced Caulk offers exceptional performance for sealing seams in your kitchen sink.

Best For: Those looking for a long-lasting, waterproof seal for kitchen sink seams with protection against mold and mildew.

Package Dimensions9.96 x 4.92 x 1.69 inches
Item Weight12.63 ounces
MaterialSilicone
BrandSUPREME BOX
StyleUltra Biscuit (Pack of 2)
Water Resistance LevelWater Resistant
Item FormLiquid

 Loctite Polyseamseal Acrylic Caulk with Silicone

Also Great
Loctite 1507599 Bronze Polyseamseal Acrylic Caulk with Silicone Tube, 10 oz

Reasons to Buy

Reason #1 – Flexible and waterproof formula that resists cracking or splitting over time.

Reason #2 – Quick drying time of just 30 minutes before exposure to water.

Reason #3 – Adheres well to various surfaces including wood, metal, and painted surfaces.

Reasons to Avoid

Reason #1 – Bronze color may not accept light-colored paint well.

The bronze-colored Loctite Polyseamseal Acrylic Caulk with Silicone may be a suitable option for those seeking a flexible and waterproof caulk for various household projects, including securing loose backsplash tiles. This product features a special siliconized acrylic formula that remains flexible and waterproof, making it ideal for sealing joints and gaps. It can also act as an adhesive, providing versatility in its applications.

Once dry, which only takes 30 seconds with latex paints, it can be painted over to match your desired color scheme. However, if using oil-based paints, it’s recommended to wait 24 hours before applying. The caulk adheres well to various surfaces such as wood, drywall, metal, and painted surfaces, offering a durable and long-lasting solution for your sealing needs.

Best For: Homeowners looking for a flexible and waterproof caulk that can be painted over to match different color schemes.

Product Dimensions1.75 x 11.5 x 1.75 inches
ColorBronze
BrandLoctite
Item Weight1.24 Ounces
Item FormStrip

Our Verdict

In our evaluation, the Gorilla Waterproof Silicone Caulk & Seal emerges as the top choice for caulking kitchen sinks due to its superior adhesion and mold-resistant properties.

This silicone sealant is perfect for ensuring a watertight seal around your kitchen sink, protecting it from moisture and mold growth. Gorilla’s caulk isn’t only long-lasting but also waterproof and mold-resistant, making it an ideal choice for areas prone to high levels of humidity, like kitchens.

Its flexibility prevents cracking and shrinking, ensuring a durable and effective seal for your sink. When looking to seal a kitchen sink effectively, opting for Gorilla Waterproof Silicone Caulk & Seal provides a reliable solution that combines ease of application with a clean finish.

This high-quality silicone caulk is a wise investment to maintain the aesthetics and functionality of your kitchen sink area for an extended period.

What to Consider When Choosing Caulk for Kitchen Sinks

When selecting caulk for your kitchen sink, consider the types available, packaging options, mildew and mold prevention, color choices, and dry and cure times.

These factors will help you choose the best caulk that suits your specific needs and ensures a lasting seal around your kitchen sink.

Taking these points into account will lead to a successful caulking job that enhances both function and aesthetics in your kitchen.

Types of Caulk for Showers and Tubs

Consider the material composition of the caulk for showers and tubs to determine its durability and moisture resistance when choosing the best caulking for kitchen sinks.

  • Pure silicone caulk offers long-lasting results with a watertight seal, making it ideal for both kitchen and bathroom areas. Silicone caulk adheres well to various surfaces, ensuring a waterproof and mold-resistant seal.
  • For showers and tubs, opting for a mildew-resistant caulk is crucial to prevent the growth of mold in high-moisture environments. While pure silicone caulk is more durable and flexible, siliconized latex/acrylic caulk provides easier application and correction.

Balancing factors like moisture resistance, application ease, and longevity will help you select the most suitable caulk for your kitchen sink needs.

Packaging Options

What factors should you prioritize when selecting the appropriate packaging option for caulking your kitchen sink?

When choosing the right caulk for your kitchen sink, consider the level of water and moisture exposure near the edge of the sink. Opt for a mold-resistant silicone sealant for your project, ensuring durability in wet environments.

For packaging options, cartridges are ideal for larger projects like sealing the kitchen counter perimeter as they provide more caulk for precise application with a caulking gun. On the other hand, squeeze tubes are more suitable for small-scale tasks such as filling minor gaps, offering easier application by hand.

Select the packaging option that aligns with the scale of your caulking project and makes application convenient.

Mildew and Mold Prevention

To ensure effective mildew and mold prevention in your kitchen sink caulking selection, prioritize examining the package for specific terms indicating resistance to these issues. When choosing a caulk/sealant for your kitchen sink, consider the following:

  1. Mildew Prevention: Look for caulk labeled as ‘mildew-proof’ or ‘mold-proof’ to inhibit the growth of mildew and mold.
  2. Durable Sealant: Opt for a durable caulk that can withstand the moisture levels typically found in kitchen sink areas.
  3. Suitable Surfaces: Ensure the caulk is suitable for various surfaces such as sink, countertop, or backsplash to maintain a long-lasting seal and prevent mildew and mold growth.

Color Choices

When selecting caulk for your kitchen sink, keep in mind that both pure silicone and siliconized latex caulk come in various colors to match your preferences and decor. For caulking around a sink to have a durable and right sealant, silicone sealant is the best choice.

White caulk is a popular option, especially if your sink undergoes a lot of daily wear and tear. The color of the caulk is crucial as it can complement or contrast with your sink’s color scheme. Consider the daily wear and tear your sink faces when choosing the most suitable color to ensure a cohesive and long-lasting seal.

Dry and Cure Times

Consider checking the dry and cure times listed on the caulk package before making a decision for your kitchen sink caulking needs. When selecting the right caulk for the job, it’s crucial to understand how long it will take for the caulk to dry to the touch and fully cure. Here are three key points to keep in mind:

  1. Opt for a clear caulk if you want the sealant to be barely noticeable on your sink and counters.
  2. Choose an adhesive caulk that adheres well to ensure a strong and long-lasting seal.
  3. Learn how to seal effectively by considering the dry time and cure time to determine which sealant is best suited for your kitchen sink.

What are the benefits of using caulk for kitchen sinks?

Using caulk for kitchen sinks offers multiple benefits that contribute to the functionality and longevity of your sink installation. Caulk provides a watertight seal, preventing water leakage and potential damage to your kitchen.

By using the right type of caulk or sealant, you can effectively resist mold and mildew growth, ensuring a hygienic environment around the sink area.

Proper caulking not only holds the sink securely in place, preventing movement or shifting that may occur during use but also contributes to the overall durability and longevity of the sink installation.

Choosing the recommended caulk, such as silicone sealant, ensures that your sink area remains safe and free from potential health hazards. Whether you’re working on a kitchen renovation or tackling other home projects, using caulk for your sink is an essential part of home repair that shouldn’t be overlooked. Make sure to allow the caulk to dry properly to achieve the best results.

Frequently Asked Questions about the Best Caulking for Kitchen Sink

What are the basic types of caulk and sealant used for kitchen sinks?

Caulk and Sealant are commonly used to seal kitchen sinks. You can choose from various types of caulk and sealant such as acrylic latex caulk, sanded caulk, unsanded caulk, or tile silicone based on your needs.

What kind of caulk is recommended for sealing a kitchen sink?

When sealing a kitchen sink, acrylic latex caulk is often recommended due to its properties that make it perfect for use in areas prone to moisture like the sink.

Why is choosing the right type of sealant important for your sink?

Choosing the right caulk or sealant is crucial for preventing water damage and leakages. A waterproof and mold-resistant sealant is ideal for ensuring a long-lasting seal around your kitchen sink.

How is caulk used to seal a kitchen sink?

Caulk is used to seal the gap between the sink and countertop or backsplash, preventing water from seeping into the cabinetry below. It helps in making it perfect for keeping the area clean and dry.

What are common problems that can arise if the caulking around a kitchen sink is not done properly?

If the caulking is not done correctly, it can lead to water damage, mold growth, and potential structural issues. Proper caulking helps in preventing problems before they start.

Is there a specific caulk tool recommended for applying sealant around a kitchen sink?

Using a caulk tool can help you apply the sealant neatly and evenly around the sink. It ensures that the caulk is more rigid and securely sealed for effective performance.

Can I use the same sealant around the sink for outdoor use?

While some sealants are suitable for outdoor use, it’s essential to check the product label to ensure that the sealant is recommended for outdoor applications and can withstand exposure to the elements such as sunlight, rain, and temperature fluctuations.

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AUTHOR

Ira Njoroge

Hey, I’m Ira Njoroge, the founder of MySpaceAffair. Early on in my life, I had a passion to embark on a mission to create a cleaner, and more organized household. With a bachelor's degree in engineering after graduating from the University of Maryland in 2015 and seven years as a General Contractor and professional cleaner, on top of my DIY Enthusiasm. I saw the need for a reliable information source for homeowners. My passion, diligence, experience, and hired professionals confirms the reliability of all the advice given in My Space Affair and I hope to provide you all with reliable and thorough content!