Granite countertops are a fabulous upgrade for the kitchen, but finding adhesives compatible with this surface is not always straightforward. As granite is very sturdy and unforgiving, using a strong adhesive to install an under-mount sink is advisable.
During the installation of an undermount sink in granite, complications may arise. A solid and secure grip is ensured using the best adhesive for undermount sink to granite.
The following are the top 5 preferred adhesives for attaching an under-mount sink to granite for your convenience. We also offer some purchasing guides to assist with the decision.
Product | Name | Editor's Rating | Price |
---|---|---|---|
Henkel Adhesive for Undermount Sink to Granite | 5 out of 5 | ||
Gorilla Glue Undermount Sink | 5 out of 5 | ||
Ge Sealants Undermount Sink Adhesive For Granite | 4.5 out of 5 | ||
Permatex Undermount Sink Glue | 4 out of 5 | ||
Smooth-On Undermount Sink Adhesive | 4.5 out of 5 |
Best Adhesive for Undermount Sink to Granite - Top 5 Picks
Adhesives for Undermount Sink to Granite is an important decision when installing a new sink or replacing an old one.
If you are in the market for a new sink, you may be wondering what type of adhesive to use to attach the sink to your countertop.
There are many different adhesives on the market, and it can be challenging to determine which one is best for your particular project.
The followings are reviews of the top five under-mount sink adhesives for undermount sink to granite that will help you make an informed decision:
01. Henkel Adhesive for Undermount Sink to Granite
Henkel adhesive is perfect for under-mount sink installations. This adhesive is designed to be waterproof and can withstand the weight of a granite countertop.
Key Features:
- It is impact-resistant and flexible
- Can be used indoors and outdoors
- Suitable for bonding or repairing in freshwater or saltwater
- Withstands high temperatures and intense pressure
The Loctite clear silicone adhesive for granite from Henkel is a multipurpose adhesive that can be used for various purposes. It forms a durable, waterproof seal perfect for metal, rubber, tile, glass, and porcelain.
This best undermount sink adhesive is designed to be used both indoors and outdoors, making it the perfect choice for various applications. It's also great for repairing everything from electrical connections to seams on boots, making it a must-have.
Its adhesive is a high-quality sealant that can be used to bond or repair saltwater or freshwater aquariums. It is a reliable and durable product that will provide long-lasting results.
The adhesive can withstand the high temperatures and intense pressure typically found in this type of installation. This makes it a reliable and durable option for ensuring a long-lasting and robust connection between these two surfaces.
It is aquarium safe, waterproof, and gap filling. This adhesive will help create a secure and lasting bond between the sink and granite countertop. Also, it is impact resistant and flexible, making it the perfect choice for this application.
Pros:
- Waterproof
- Durable
- Gap filling
- Impact-resistant
Cons:
- Not suitable for painting
Verdict:
If you are looking for an adhesive for your under the mount sink installation, the Henkel adhesive for the undermount sink to granite is a perfect choice. It also withstands high temperatures and pressures.
02. Gorilla Glue Undermount Sink
The Gorilla max strength adhesive is a glue tube designed for use in construction projects. This adhesive is crystal clear so that it can be used in various applications.
Key Features:
- Repositionable glue can be moved
- It dries completely crystal clear
- 2X stronger than the original Gorilla glue
- Can be used in all weather conditions
This adhesive is 2X more potent than its original formula, making it the perfect choice for any heavy-duty project. Whether mounting a sink or securing some other large object, you can rest assured that this product will provide a reliable and durable hold.
Gorilla glue is a powerful adhesive that dries crystal clear. This makes it perfect for use with undermount sinks, as it will not show any sign of being used.
The sink is 100% waterproof and can be used underwater without problems. It is also straightforward to install, making it an excellent choice for anyone who wants a quick and easy renovation.
This sealant is incredibly durable in all weather situations and can withstand much wear and tear. Also, this sink is easy to clean and will look great in any kitchen.
This silicone caulk is repositionable, which means it can be moved around until it is in the correct place. It is also gap filling, meaning that it will fill in any gaps between the sink and the countertop.
It is paintable so that you can match it to the color of your countertop. Finally, it is easy to dispense, so you won't have any problems using it.
Pros:
- 2X stronger
- Dries crystal clear
- 100% waterproof
- Paintable
Cons:
- Not thin enough to squeeze out easily
Verdict:
So whether you're looking for an adhesive to use in construction projects or you want a product that is easy to use and provides a stronghold, the Gorilla glue undermount sink is a perfect choice.
03. Ge Sealants Undermount Sink Adhesive For Granite
GE Sealants is a transparent adhesive designed for use with granite under-mount sinks. The adhesive forms a strong bond between the sink and the granite, ensuring a secure installation that will withstand everyday use.
Key Features:
- Provide a permanent seal
- Contains a 100% silicone caulk
- It is a permanent waterproof adhesive
- This adhesive is permanently flexible
This sealants offer an adhesive for granite countertops that is 100% undermount kitchen sink silicone adhesive. This adhesive provides a permanent seal between the under-mount sink and the granite countertop.
It is easy to use and does not require any special tools or training. The adhesive comes in a tube, so it is easy to apply. It dries clear, so it will not discolor the granite.
These under-mount sink adhesives for granite are the perfect way to keep your sink in place. It is a permanent waterproof adhesive that will keep your sink looking new for years to come.
This silicone caulk is a permanently flexible product designed to hold under-mount sinks in place on granite countertops. It is specially formulated to resist heat, cold, and moisture, making it ideal for use in kitchens and bathrooms.
The adhesive is designed to work with various materials such as tile, wood, steel, porcelain, glass, aluminum, making it a versatile option for many applications. It is also easy to use, making it an excellent choice for DIY projects.
Pros:
- 100% silicone
- Permanently flexible
- Permanent waterproof
- Work with various materials
Cons:
- Flowing like water on a flattened surface
Verdict:
So, if you are looking for an adhesive to use with your under-mount sink and granite countertop, then the GE Sealants undermount sink adhesive for granite is a great option. It is easy to use, permanent, and versatile.
04. Permatex Undermount Sink Glue
If you're looking for a reliable adhesive to seal your sink undermount, look no further than Permatex RTV silicone sealant. This adhesive is designed to create a watertight seal, so you can rest easy knowing your sink is secure.
Key Features:
- Creates a watertight seal
- Ideal for indoor or outdoor use
- Withstands water, weather, and vibration
- Resistant to water and humidity
This silicone caulk is perfect for bonding and sealing sinks, counters, and other household fixtures. The adhesive is ideal for indoor or outdoor use, making it perfect for various applications.
Waterproof, durable, and flexible, this product is resistant to weather, water, and vibration. This adhesive will hold your sink in place and look great for longer. It can be applied horizontally or vertically, making it easy to use in any situation.
It has a temperature range of -75°F to 400°F, making it ideal for indoor and outdoor use. The adhesive cures quickly and bonds strongly, making it suitable for sink installation. It is water and humidity-resistant, making it ideal for use in bathrooms and kitchens.
This product is designed to provide a robust and permanent bond between various materials. It can be used for multiple applications, from repairing small tears in fabric to securing metal and plastic parts.
Pros:
- Vibration resistance
- Quick curing time
- Strong bonding strength
- Watertight seal
Cons:
- Vinyl rubber does not adhere well
Verdict:
Permatex undermount sink glue is an ideal adhesive for granite with undermount sink, so you can rest easy knowing your sink is secure. Besides bonding and sealing various materials, it makes a versatile household item.
05. Smooth-On Undermount Sink Adhesive
Smooth-On is an adhesive specifically designed for bonding sink basins to countertops. It is a silicone-based adhesive that forms a durable and robust bond and is resistant to heat and moisture.
Key Features:
- Bonds silicone to silicone and other substrates
- Made with one component
- Cures in 12 minutes
- Great for repairing torn silicone rubber molds
This adhesive is a one-component adhesive specifically designed to hold sink bowls in place. It cures to a durable and robust bond so that it can handle the weight of a sink bowl without any problems.
It is designed to bond silicone to silicone and other substrates and urethane plastics. It cures quickly and forms a durable, watertight bond. This adhesive is perfect for installing undermount sinks in residential and commercial applications.
This can be used on various materials, including fabric, ceramic, and plaster. It is an excellent option for those looking for a durable and long-lasting adhesive. Also, this sil-Poxy is a one-part adhesive that can be used for repairing torn silicone rubber molds.
It is used for bonding sinks and other countertop surfaces to countertops or substrates. It can also be used for bonding silicone for prosthetics and animatronics. Plus, it cures in just 12 minutes, making it a quick and easy option for this type of installation.
Pros:
- One-component adhesive
- 12 minutes curing time
- Bonds silicone to silicone
- Easy to use
Verdict:
If you are looking for an adhesive specifically designed for bonding sink basins to countertops, Smooth-On undermount sink adhesive is a great option. It's a one-component adhesive that cures quickly.
These are some of the best adhesives for undermount sinks to granite. These products will give you a durable and lasting bond, so you can rest easy knowing your sink is secure.
You can enjoy years of use from your undermount sink with the right product. But there are some essential things to keep in mind when choosing the right product for your needs.
Adhesive for Undermount Sink to Granite - Buying Guide

If you want to install an undermount sink on granite, you need a strong adhesive that will stand the test of time. So you need to choose an adhesive specifically designed for this type of installation.
Here are some things to keep in mind when choosing the right product:
Type of Adhesive:
Two types of adhesives can be used for undermount sinks:- Silicone-based and Epoxy-based. Silicone-based adhesives are the most popular choice because they form a strong, durable bond.
Epoxy-based adhesives are also a good option, but they can be tricky to use. If you choose this type of adhesive, make sure you follow the instructions carefully.
Curing Time:
You need to choose an adhesive that has a quick curing time. This is important because you don't want the glue to be set before you have a chance to position the sink.
Bond Strength:
You need to choose an adhesive that has a strong bond strength. This is important because you don't want the sink to come loose over time. Moreover, the bond should be able to withstand the sink's weight.
Substrates:
You need to choose an adhesive that can bond to the substrate you are using. For example, if you are using granite, you need an adhesive that can bond to granite.
Viscosity:
You need to choose an adhesive that has the proper viscosity. This is important because you don't want the glue to run or drip before it sets.
Working Life:

You need to choose an adhesive that has a long working life. This is important because you want to be able to use the adhesive multiple times. Additionally, you want the adhesive to retain its strength over time.
Shelf Life:
You need to choose an adhesive that has a long shelf life. This is important because you want to be able to use the glue for granite for longer. In addition, you want the adhesive to withstand extreme temperatures.
Cost:
You need to choose an affordable adhesive. This is important because you don't want to spend a lot of money on an adhesive that you will only use once.
These are some things to keep in mind when choosing the right product for your needs. You can enjoy years of use from your undermount sink with the right product.
FAQs
We will take a look at some of the most frequently asked questions regarding undermount sink adhesives to attach to granite:
01. How to Glue Undermount Sink to Granite?
The best way to attach an undermount sink to granite is with a caulking gun, apply a bead of silicone caulking along the sink's rim. Then, put the sink back into the granite hole and use a string to pull the sink into place. You need to choose an adhesive specifically designed for this type of installation.
02. Can You Put a Drop-In Sink on Granite?
Yes, you can put a drop-in sink on granite. However, you need to make sure that the sink is properly sealed with drop-in sink adhesive so that it doesn't leak.
03. How to Remove Gorilla Glue From Granite?

If you need to remove gorilla glue from granite, you can use a putty knife or a chisel. You can also use acetone or alcohol to dissolve the glue.
04. Is Silicone Enough to Hold an Undermount Sink?
Yes, silicone is enough to hold an undermount sink. Most manufacturers of undermount sinks recommend that you use a pure, 100% silicone sealant when installing an undermount sink.
In Conclusion
Undermount sinks require a strong adhesive to form a strong bond and support the sink's weight. The products we've suggested are designed for just this purpose, to provide a long-lasting seal between the sink and the granite substrate.
If you're looking for the best adhesive for undermount sink to granite so you can install an sink on granite, you need to choose one specifically designed for this type of installation.
To summarize, using a suitable adhesive for your undermount sink installation on granite can save you a lot of headaches. Your undermount sink will remain secure for many years with the proper adhesive. Thanks for reading!