Best Sealant for Sink Drain in 2022- Top 5 Picks Reviews

A sealant is a chemical material that is used to fix cracks and fill gaps. Sealants join two distinct materials together (e.g. counter and sink). A sealant’s job is to create a barrier to block water, air, and other elements from seeping into the surface they are applied on.

It is usually sold in two formats- tube and cartridge. Due to its mold-proof solutions and chemical properties, it can control mold growth. Sealants take quite a bit of time to cure- 24 hours up to several days until it reaches the thick consistency.

Moreover, it is resistant to water, moisture, and many other chemicals. Its long-lasting gap-filling ability makes it perfect to seal any sink drain around faucets, toilets, and bathtubs.

However, there are a multitude of different caulks and sealants available in the market, but not all are of quality. So, we are here to help you find the best sealant for sink drain.



Editor's Rating


Squeeze Tube Clear Silicone Sealant

5 Out of 5

Waterproof Sealant

5 Out of 5

Kitchen Drain Sealant

5 Out of 5

Plumber's Putty

5 Out of 5

Kitchen and Bath Sealant

5 Out of 5

Our Recommendation Top 5 Best Sealant For Sink Drain Reviews

1. Gorilla Tube Clear Silicone Sealant

Like the name itself, Gorilla-Percent-Sealant-Squeeze is as strong and sturdy as Gorilla.  It has a super smooth finish and is easy to use, which makes it superior to other sealants.

Whether you are planning to seal your windowpane, kitchen, or bath, Gorilla percent sealant is an ideal choice for you. It is multi-surface and can be used almost everywhere (indoors and outdoors).

Plus, it has 30 minutes shower-ready formula, which will help you to finish your job in no time. Better yet, it is crack and shrink-proof and doesn’t yellow.

Everyone wants their kitchen to be squeaky clean, mold and mildew free. The good news is, this product repels molds and mildews and helps to keep the surface from degrading.

Lastly, if you are an amateur and want to seal the gaps perfectly, this is the product for you. Purchase Gorilla percent sealant and you won’t be disappointed.

 Highlighted Features:

  • 100% Versatile silicone sealant that dries lucid clear
  • Works on the door, window, bath, kitchen, auto, marine, gutters, and more
  • Best for filling gaps and sealing cracks between two surfaces
  • Totally waterproof, can be used both indoors and outdoors
  • Resistant to Mold and Mildew
  • Doesn’t yellow, crack or shrink

2. Henkel Corporation- Waterproof Sealant

Here we present the next-best sealant for sink drain- Loctite clear silicone waterproof. This multi-purpose sealant creates a protective, watertight seal, hence this is a top choice for bonding plastics and rubbers.

This sealant does exactly what it was designed to do- sticks materials together. It can be used for bonding glass, ABS, ceramic, wood, porcelain, aluminum, fiberglass, cultured marble, vinyl tile, and granite.

In addition, it makes a great sealer for door frames, windows, toys, vents. It can also repair gaskets, appliances, shoes, and boots.

This is a great product for small and medium jobs. Since Loctite sealant is waterproof, it can be successfully applied to seal the leaks in aquariums, swimming pools, and hoses.

The best thing about this product is, it doesn’t take a long time to dry- 2 hours tack time and 24 hours dry time. Note that, if you keep it from sun and light, it will last a long period of time.

Overall, with its high usability, versatility, and durability, Loctite waterproof sealant can be used on many surfaces and is one of the best products to use underwater.

Highlighted Features:

  • Resistant to extreme temperatures
  • Waterproof; Aquarium-safe
  • Flexible and Impact resistant
  • Multipurpose Adhesive/Sealant
  • Gap-filling

3 . GE Silicone for sink drain

If you are looking for a sealant for the kitchen sink drain, you can’t go wrong with GE. This high-performing product has earned its credibility, due to excellent results. Let’s find out how this product stands out from others.

To begin with, this sealant is fully waterproof that completely absorbs the water and provides a reliable seal and blocks the seepage.

In the event of molding, the moldicide properties in GE sealants inhibits the growth of molds and mildews, provides 10-year mold-free protection, which is fantastic.

You’ll be amazed to know that this sealant is 5x stronger than other adhesives and 40% flexible on every weather condition.

The silicone will not discolor the metal finishes like chrome, nickel, and bronze. Plus, this sealant has minimal odor. This product is super-easy to apply, even if you are not a professional handyman, you can seal the sink effortlessly.

Also, the methanol in this product aids in the curing process which takes merely 30-minutes. It is important to wear a mask before applying this product, so the methanol content in it can’t affect you.

GE sealant comes with lifetime guarantee, so you can buy it without a second thought.

Highlighted Features:

  • Lifetime guarantee; 100% water-proof
  • Protection from molds for 10 years
  • 40% more flexibility than Class 25 sealants†5X stronger adhesion
  • Shrink & crack-proof; 30-minute water-ready†
  • Neutral curing with low odor

4. WM Harvey Professional Grade Plumber's Putty

WM Harvey is a highly-rated sealant that is fairly priced and will give you good value for your money. In a market full of poorly made junk, it is a delight to find a quality product like this.

This product comes in a 14 fluid ounces tub have been around for quite some time now. The calcite lime properties of WM Harvey enable it to maintain its firmness for a long period of time, so it doesn’t crack, crumble or shrink. It is also anti-bacterial.

On top of that, it can be used in setting rims, bowls, faucets, and strainers. Its off-white color makes it useful for paints and stains. It is pretty easy to use even for someone with no prior plumbing experience.

This product creates a barrier against water which makes it appropriate for interior use, it can seal outside entrances too. Although it is not suitable for exterior applications and doesn’t work as a weather seal.

One more advantage of this product is, it is flexible and removable after application, but can’t be used on porous materials.

Highlighted Features:

  • Reasonable Price
  • Flexible and does not crumble, crack or shrink
  • It can also be used with stains and painting supplies
  • Used in setting rim, strainers, bowls, and faucets
  • Anti-bacterial

5. GE Silicone Rubber Kitchen Sealant

GE Rubber sealants are ideal for showers, tubs, kitchens where water is most prevalent. With its impressive water-proofing credentials, it prevents the water from penetrating into the surface and stops water damage.

It is a popular choice among sealants due to its durable material that creates strength and absorbs pressure that is exerted upon it. Unlike acrylic, it doesn’t break over time. As well as that, rubber sealants can tolerate temperatures as high as 310 and as low as 100 degree celcius.

Nothing compares to rubber sealant when it comes to heavy-duty jobs. It can join most tile, ceramic, laminate, metal, glass, granite, plastic, and wood. The only downside of this product is because it is made of pure silicone, it is not paintable.

Most importantly, it doesn’t shrink, crumble, crack, unlike acrylic that leaves gaps for water to seep in. Water leakage can give rise to mold growth and cause damage. This is what makes this product superior to other sealants because it is permanently water-proof.

Highlighted Features:

  • Permanently waterproof
  • Pure silicone
  • Uses: Showers, sinks, tubs, countertops, tile, and fixtures
  • Sticks to most ceramic, laminate, tile, glass, porcelain, plastic

sealant for sink drain Buying Guide

Silicone sealants are very popular due to their flexibility and high applicability. Silicone caulks are easy-to-use and powerful, hence well-suited for countless various applications.

Made of clear substance it is formulated to be stable and flexible. Therefore, it can sustain itself in extreme cold or hot temperatures.

When you are caulking a sink drain, you need to get a smooth and neat finish. For that you need to learn which type of sealant will be more effective for your specific application and give you better results; then you can choose the best sealant for sink drain accordingly.

The market is crowded with sealants. But to pick the best one for your job, you have to keep in mind a few crucial points:


You have to make sure the sealant you are buying is versatile in nature, so it can serve multiple purposes like sustainability, reliability. It should also have the ability to sustain in harsh weather conditions and resistance to UV rays.


It must stick to the surface, so the water can’t penetrate. Adhesion strength is a big consideration while choosing a sealant, so it can withstand any weather or water pressure.

Chemical reaction

It must not react and alter in the presence of other chemicals whilst sealing. It should have all the components to endure in corrosive surroundings.


It should have the flexibility to accommodate materials with the space to move without cracking, tearing, and splitting. Also, make sure it contains all the things to bond adhesives.

Buying caulks and sealants have become rather difficult, thanks to the heaps of products in the market. They vary from each other in terms of qualities and features. But no worries! We are here to help you snag the best one.

Frequently Asked Questions

What kind of sealant should be used for the Kitchen?

It depends on personal choice and the choice varies from person to person. But according to our research, the best sealant for a kitchen sink is plumber’s putty. You could also use any epoxy sealant.

What is the best sealant for a bathroom?

Any Sealant that has silicone and latex in it and creates strong shield against water. GE Advanced sealant is most popular among customers for bathroom sealing.

Are Sealants mold resistant?

Yes, most sealants are mold resistant. The biocide and acetoxy content in them inhibits mold growth.

Are Sealants Waterproof?

Silicone-based sealants are waterproof. It helps to prolong the durability of the surface.

What is the best Sealant for sink drain?

According to customer’s opinion, Gorilla-Percent- Silicone-Sealant is overall best.

Final word

In conclusion, after looking at all the above-mentioned top products, our recommendation for repairing jobs is Gorilla Percent Sealant. For superior performance and outstanding result in Kitchen sealing GE Silicone Kitchen caulk is your best bet. Particularly, GE Rubber sealant is an ideal choice for bathrooms due its permanent waterproofing ability. We hope with the information we provided here, you’ll be able to pick the right best sealant for sink drain in accordance to your needs.

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