For best results, it's generally recommended to wait 24 hours after countertop installation before setting up the sink. (Make sure to have a backup plan to keep your bathroom or kitchen supplied with water for those 24 hours.)
Normally either right away or 20 to 24 hours later. Depending on the company and whether they strap the sink to secure it in place and silicone or just use silicone.
So while the product may appear to be cured on the outside it may still be wet on the inside. It takes about 24-48 hours for the product to fully cure all the way through. And in that time, the sink cannot be disturbed.
Since undermount sinks to not have anything above the counter to help carry their weight, they need more support. They also need more solid countertops that don't suffer easily from water damage. This often makes them a more expensive sink than other options and also makes installation more difficult.
Choosing Countertops for an Undermount Sink
The best thing about undermount sinks is that they can be used with any type of stone countertop. Whether you have a marble countertop, a quartz countertop or a granite countertop, undermount sinks can be installed without any problems.
If you've had granite countertops installed, then you'll need to wait 24 hours before using the countertops. This is because granite needs to be sealed after installation to protect the porous surface from moisture. Quartz countertops can be used straight away as they don't need sealing.
Some say drop-in is generally the best option because it's easier to access all parts of the sink for cleaning. However, both types of sinks tend to accumulate grime along the caulk line where the sink meets the counter. Where an undermount sink rim and counter meet, the caulked gap can be trickier to clean.
Undermount Sinks Make Cleaning Easy
Of the kitchen sink options, undermount sinks are a perfect choice to keep the home clean. Because they are caulked or clipped directly to the vanity or counter space, there is no gap underneath the sink.
Pros of an Undermount Sink
Undermount sinks are: Easy to clean: Countertop cleanup is more streamlined with undermount sinks since you can wipe any spills or crumbs directly into the sink. Highly durable: Undermount sink types can be worth the price for their durability and quick countertop cleanup.
Proper Sink Installation
Then, form an initial seal by applying an adhesive (usually a two-part epoxy but sometimes silicone) to the sink before attaching it to the underside of the counter. Then seal the gap with silicone caulk. Look for mold-free or mildew-resistant caulk designed for kitchens and baths.
An undermount kitchen sink is easier to clean. Since your countertops are below your sink, there will be little need for scrubbing them. You will also have less counter space, so cleaning will take less time. With less counter space, you will also have less waste from pans and pots.
Most undermount sinks come with clips to attach them to the underside of your countertop. However, you don't have to use clips for all undermount kitchen or bathroom sink installations. You can also use brackets or the two-part epoxy. You can also use a combination of attachment methods for a more secure hold.
For best results, it's generally recommended to wait 24 hours after countertop installation before setting up the sink. (Make sure to have a backup plan to keep your bathroom or kitchen supplied with water for those 24 hours.)
Order of Installation
It's very important to install an undermount kitchen sink before the countertop slabs are set down. Once the countertop slabs are set down, you usually will not be able to fit the sink through the hole, and you won't be able to properly seal between the sink and the underside of the countertop.
Undermount sinks are a popular choice for many homeowners because they offer a sleek, seamless look that is easy to keep clean. Because there is no lip around the edge of the sink, it is easier to wipe debris directly into the sink, rather than having to clean around the rim of the sink.
Undermount kitchen sinks have a sleek configuration that can showcase a countertop and make cleaning easier. They can also be more challenging to install than drop-in sinks.
Overall, which is better: Undermount or Drop-in Sinks? In general, which sink type is best for you will come down to preference. Drop-in sinks represent a sink type that is affordable, flexible, and easy to install. But drop-in sinks do not have much in the way of resale value and are aesthetically outdated.
A common issue with the undermount design is that they can be prone to sagging over time. When the sink starts pulling away from the countertop, leaving a gap, it needs to be hiked back up and secured in place. Undermount sinks work best with solid granite, marble, or concrete counters.
There are two ways to install a sink with a quartz countertop. The conventional way is to mount it with its edge sitting on top of the countertop surface. This is referred to as an overmount sink. The alternative is to install a sink below the countertop, known as an undermount sink.
An undermount sink is just like the name sounds – a sink that fits underneath your countertops. This sink has many benefits compared to other options and makes task work in your kitchen much easier. Undermount sinks work best when they are installed in conjunction with natural stone countertops, like granite.
OVERHANG - The countertop extends over the edge of the sink on all sides by approximately 1/8" - 1/4". Use caution with this installation to be sure that accessories such as colanders or cutting boards will fit properly.