Best Kitchen Sink Sealant of 2023 – Top 5 Products!

If you’re on a quest to find the best kitchen sink sealant that guarantees a watertight and long-lasting bond, you’ve come to the right place!

Whether you’re tackling a kitchen renovation or simply needing to seal your sink, picking the best kitchen sink sealant is always a great investment.

In this blog, I’ve carefully curated the top 5 kitchen sink sealants of 2023, each boasting exceptional adhesion, weather resistance, and ease of application.

Join me as we dive into the features and benefits of each product, helping you find the perfect sealant to keep your kitchen sink secure and leak-free!

Top 5 Kitchen Sink Sealants – Features and Comparison

In this section, we’ll explore the features of the top 5 kitchen sink sealants and provide a detailed comparison to help you find the perfect sealant for your kitchen needs.

FeaturesSTAR BRITE Silicone SealantRed Devil 0883 Kitchen & Bath Silicone SealantLoctite Polyseamseal Tub & Tile AdhesiveRed Devil 0405 Duraguard Kitchen & Bath Siliconized Acrylic CaulkKraken Bond RTV Silicone White Caulk
MaterialSiliconeSiliconePlasticSiliconized AcrylicSilicone
Color OptionsBlack, White, ClearWhiteAlmondWhiteWhite
Application AreaMarine, HomeKitchen, BathroomKitchen, BathroomKitchen, BathroomKitchen, Bathroom
Waterproof & AirtightYesYesYesYesYes
AdhesionFiberglass, Wood, Glass, Metal, PlasticsTile, Glass, Porcelain, Marble, Vinyl, Plastic, FiberglassFiberglass, Tile, Glass, Porcelain, PlasticsTile, Glass, Porcelain, Marble, Vinyl, Plastic, FiberglassGlass, Porcelain, Steel, Non-Porous Building Materials
UV ResistanceYesYesYesYesYes
Curing TimeDries tack-free in under an hour, cures completely in 24 hours24 hours 24 hours (74.4°F and 50% R.H)48 hours24 hours (74.4°F and 50% R.H)

STAR BRITE Silicone Sealant


  • This heavy-duty silicon adhesive is specially designed for marine applications and is available in black, white, and clear options.
  • It bonds seamlessly to fiberglass, wood, glass, metal, and plastics, making it perfect for above and below the waterline applications.
  • The sealant provides a waterproof and airtight bond that remains strong and durable. It won’t crack, shrink, or turn yellow over time.
  • Additionally, it is resistant to sunlight, weathering, chemicals, and solvents, ensuring long-lasting performance in harsh conditions.
  • This sealant is highly versatile and ideal for mounting deck hardware. It can also be used as a gasket material under compression.
  • It works well on joints, cracks, sinks, bathtubs, doors, windows, gutters, and more.
  • The sealant applies easily with continuous pressure and can be tooled into cracks or openings. It forms a skin in just 10 minutes, allowing for immediate tooling.
  • When desired, it can be easily removed without leaving any residue or causing damage.
  • This silicone sealant forms a durable rubber that remains flexible across a wide temperature range, from -60°F to +450°F.
  • It is also UV-resistant, making it perfect for both marine and home use.
  • The sealant dries tack-free in under an hour and cures completely within 24 hours, ensuring a strong and reliable bond.


  • Exceptional water resistance, even in challenging conditions.
  • Versatile and strong adhesion for various applications, including sink fixtures.
  • Creates a long-lasting and durable seal, preventing leaks.
  • Easy to apply, providing a smooth and professional finish.
  • Good quality and performance from a trusted brand.


  • Some users experienced longer curing times than stated.
  • Strong odor during application, requiring proper ventilation.
STAR BRITE Silicone SealantPrice
Check Price on Amazon

Red Devil 0883 Kitchen & Bath Silicone Sealant


  • Red Devil 0883 Kitchen & Bath Silicone Sealant is ideal for enclosed spaces like kitchens. This VOC-compliant silicon sealant boasts a low odor and is USDA recognized.
  • Adheres to tile, glass, porcelain, marble, vinyl, plastic, and fiberglass, providing an ultra-smooth satin finish that complements kitchen and bath fixtures for a professional look at home.
  • Perfect for countertops, sinks, bathtubs, vanities, showers, splashboards, and fixtures.
  • Featuring a Permanent Flexibility design, this multi-purpose sealant withstands the elements and remains durable without cracking, peeling, or shrinking, ensuring a dependable seal that lasts for years.
  • The advanced formula of this silicone sealant ensures long-lasting flexibility and excellent adhesion, offering a protective barrier against moisture, stain, and mildew.
  • It creates a watertight barrier around bathroom and kitchen fixtures and dries to a satin finish that is ultra-smooth for a polished appearance.
  • Comes with a 50-year limited warranty, giving you confidence in its quality and durability.
  • Easy clean-up with solvent, making maintenance hassle-free.


  • Dries to a nice satin finish, offering a clear and clean look.
  • Easy to use and apply, even for first-time users.
  • Can be used multiple times without drying out in the tube.
  • Creates a waterproof seal for kitchen and bath applications.


  • Some users experienced a watery consistency during application.
  • Strong odor may be present until fully cured, taking 24 hours.
  • Difficult to store safely overnight without drying out completely.
  • Challenging to remove or clean up if mistakes are made during application.
Red Devil 0883 Kitchen & Bath Silicone SealantPrice
Check Price on Amazon

Loctite Polyseamseal Tub & Tile Adhesive


  • The Loctite Polyseamseal Tub & Tile Adhesive Caulk comes in an elegant Almond color, providing a stylish finish to your sealing projects.
  • Made from durable and reliable plastic material, this water-based caulk offers durability and versatility for various sealing applications.
  • The caulk fully cures over a period of 24 hours, providing a strong and watertight seal.
  • This caulk is specially formulated for sealing projects in the kitchen and bathroom, providing a flexible, watertight, and mildew-resistant solution.
  • Designed with the strength of an adhesive and the sealing characteristics of a caulk, ensuring long-lasting bonding and sealing properties.
  • The cured caulk contains a mildewcide that effectively inhibits mold and mildew growth, making it suitable for use in humid and steamy areas like the shower and sink.
  • With a low-odor formula, this caulk is easy to clean with just soap and water, making maintenance a breeze.
  • Paintable and resistant to color change and abrasion, providing a clean and professional look for your sealing projects.
  • The caulk contains an acrylic-based sealant, ensuring a flexible and watertight seal around sinks, toilets, baseboards, and grout work.


  • Adheres well and creates a clean and neat finish when smoothed out.
  • Can be softened with hot water before use, making it easier to apply from the tube.
  • Provides a good seal and prevents moisture from developing underneath.
  • Easy to work with and apply, especially for fixing cracked grout.
  • Solid performance for sealing in a sink, stand-up shower, and shower floor.


  • Some users received a different color (white instead of almond) than expected.
  • Difficult to dispense from the tube when using a smaller bead without a caulking gun.
  • Dries a little darker than the color seen in the tube, which may not match other almond-colored fixtures.
Loctite Polyseamseal Tub & Tile AdhesivePrice
Check Price on Amazon

Red Devil 0405 Duraguard Kitchen & Bath Siliconized Acrylic Caulk


  • The Red Devil 0405 Duraguard Kitchen & Bath Siliconized Acrylic Caulk in White color offers a durable and watertight seal, providing excellent protection against moisture.
  • It boasts excellent adhesion, adhering well to various kitchen and bath surfaces.
  • The caulk’s easy application and tooling make it simple to achieve a professional repair.
  • It is also paintable, allowing you to match it with any desired color.
  • Cleaning up is hassle-free with water and soap.
  • This advanced formula, fortified with silicone, ensures long-lasting flexibility and a protective barrier against moisture.
  • It creates a watertight seal around kitchen and bath fixtures, leaving a smooth, satin finish.
  • Ideal for use on bathtubs, sinks, showers, countertops, splashboards, and fixtures.
  • Whether it’s for a sink, tub, mirror, or other bathroom applications, this odorless caulk with silicone fortification provides a long-lasting watertight seal for interior use.
  • The Red Devil 0405 Duraguard Kitchen & Bath Siliconized Acrylic Caulk has a curing time of 48 hours.


  • Quick and effective cure time, with some users experiencing success in just over 48 hours.
  • Easy to apply and work with, making it suitable for various projects.
  • Cap included for storing the unused portion of the caulk.
  • Excellent for caulking around sinks, tubs, toilets, and other bathroom fixtures.
  • Great color match and flows smoothly when applied with a caulking gun.
  • Provides a clean and attractive finish, making showers and tubs look brand new.
  • Easy to remove excess caulk and reapply if necessary, allowing for a smooth application.
  • No caulking gun is required, making it convenient for small projects like sealing toilets.


  • Some users might find the skin-over time to be relatively fast, requiring swift smoothing during application.
  • The full cure time may be longer than expected for some users who need to use the area sooner.
Red Devil 0405 Duraguard Kitchen & Bath Siliconized Acrylic CaulkPrice
Check Price on Amazon

Kraken Bond RTV Silicone White Caulk


  • This silicone sealant is designed for a wide range of home improvement projects, including sealing around sinks, windows, and doors, DIY applications, bathroom, kitchen, and plumbing tasks.
  • With its acetoxy formula, the caulk offers powerful adhesion and is suitable for common non-porous building materials such as glass, porcelain, and steel, making it ideal for sealing kitchen sinks and other surfaces.
  • The fast-drying bathroom caulk resists aging, cracking, and discoloring, ensuring a durable and long-lasting seal in kitchen and bathroom areas.
  • The Kraken Bond RTV Silicone White Caulk requires 24 hours to fully cure at a temperature of 74.4°F (23.6°C) and 50% relative humidity (R.H).
  • During this time, the caulk sets and forms a strong and durable seal, providing optimal performance and effectiveness in sealing kitchen sinks, bathroom fixtures, and other applications.
  • The white silicone sealant remains resilient and flexible even in low and high temperatures, ensuring it maintains its effectiveness and durability when used in various kitchen and bath applications.
  • The cartridge design, used with a caulking gun, allows for easy application with light pressure on the joint surface, helping achieve a professional finish.
  • The caulk is available in four different color options – black, white, gray, and transparent, providing flexibility to match your kitchen sink or other sealing needs.
  • This sealant provides a reliable water-resistant barrier, making it perfect for use in moisture-prone areas like kitchen sinks and bathroom fixtures.
  • The caulk is formulated to be shrink and crack-proof, ensuring a secure and long-lasting seal even after curing.
  • Even after curing, the caulk maintains its elasticity, allowing it to move with the substrate and adapt to changes in temperature and humidity.


  • Effective for sealing around leaking toilets and sinks, saving money on expensive repairs.
  • The color matches well with vinyl siding, providing seamless repairs that are barely noticeable.
  • Flexible and durable, maintaining adhesion for an extended period, especially for outdoor use.
  • Easy to apply, goes on smoothly, and dries to a hard rubbery consistency.
  • Provides a strong seal that repels water and adheres well to various surfaces, including vinyl seats.
  • Ample amount of caulk in the tube for tackling multiple projects.
  • User-friendly, making it easy to achieve desired results even for those without professional experience.


  • Some users wish for a snap tip cover to facilitate saving and reusing the product.
  • Longevity concerns remain for long-term performance.
Kraken Bond RTV Silicone White CaulkPrice
Check Price on Amazon

Bottom Line

Whether you prioritize flexibility, weather resistance, or ease of application, I am sure you have already found the perfect option for you from the list above.

Remember to consider your kitchen’s requirements and select a sealant that guarantees a durable and watertight bond.

With the best kitchen sink sealant at your disposal, you can bid farewell to worries about leaks and enjoy a well-sealed and functional kitchen sink for years ahead!

Happy sealing!


What is the best sealant for under a kitchen sink?

The best sealant for under a kitchen sink is silicone sealant.

With its waterproof and non-toxic properties, silicone offers exceptional durability and flexibility, rarely cracking over time.

It forms a reliable bond with various substrates such as metal, glass, porcelain, and ceramic, making it a versatile and effective choice for kitchen applications.

What is the best sink pipe sealant?

The best sink pipe sealant for fixing leaks is silicone caulk.

It offers a cost-effective solution, ease of use, and can be readily found in most hardware stores.

Silicone caulk is a reliable choice to ensure a watertight seal and prevent further leaks in sink pipes.

Should I use plumbers putty on sink?

Yes, you can use plumber’s putty on sink installations, but it’s essential to use it correctly.

Plumber’s putty is recommended for setting bowls, fixtures, faucets, sink frames, and strainers, especially when working with stainless-steel fixtures.

However, it should not be used on plastics like acrylic or ABS, as it can compromise the integrity of the material and potentially lead to product failure.