How To Seal Granite Countertops For A Lasting Shine

Sealing your granite countertop might sound daunting, but fear not! It’s simpler than you think. Here’s your guide on how to seal granite countertops:

Gathering the Necessary Materials

Before you start your granite-sealing journey, let’s ensure you have all the tools and materials you need:

• A high-quality granite sealant (available at hardware stores)

• A clean, dry cloth

• Mild dish soap

• Soft brush or cloth for cleaning

• Painter’s tape (if required)

• A timer or stopwatch

• Microfiber cloths

• Spray bottle

• Liquid dishwashing detergent

• Isopropyl alcohol

• Granite sealer

• Rubber gloves

• Soft washcloths

• Soft rags

Prep Your Surface

First things first, clear your countertop of any items. You want a clean slate for this process. Then, let’s roll up our sleeves and get ready to clean. Cleaning your granite countertops is an important step.

1. Wipe away any loose debris using a dry cloth.

2. Mix mild dish soap with warm water and give your countertop a thorough cleansing.

3. Rinse off the soap residue with clean water and ensure the surface is completely dry.

This meticulous cleaning is pivotal because it ensures the sealant adheres properly to the granite surface.

Read more here: How to care for granite countertops

Choose the Right Sealant

Various sealants are available, so choose one that suits your granite type. A quality granite sealant ensures a longer-lasting seal.

Applying the Sealant

Now comes the exciting part—applying the granite sealers to shield your granite countertop from harm.

1. Before opening the sealant, remember to shake or stir the sealant per the manufacturer’s instructions before opening it.

2. Apply a small amount of the sealant directly onto the countertop.

3. Gently spread the sealant across the surface using a clean, dry cloth. Employ circular motions to ensure even coverage.

4. Allow the sealant to sit for the recommended duration, usually around 15-20 minutes. Use this time to catch up on your favorite show or try your hand at a quick kitchen experiment.

Checking and Buffing

The wait is over! But before you proceed, let’s perform a simple test to ensure the sealant is ready for the next step. Place a drop of water on the countertop; if it beads up, you’re good to go.

If the water is absorbed, you might need a second coat. No worries, that’s a common scenario, especially for first-time sealers.

After the sealant is successfully applied:

1. Gently buff the countertop using a clean, dry cloth. This will remove any excess sealant and ensure a smooth, dry surface.

2. Keep buffing until the countertop feels soft to the touch and no longer exhibits a tacky or sticky sensation.

You may also want to read about our How To Disinfect Granite Countertops.

Picture this: you’re in your cozy kitchen, whipping up your favorite recipe, and suddenly—oops!—a splash of tomato sauce lands on your pristine granite surface. Don’t fret; this is where sealing comes to the rescue.

Granite is a natural stone with tiny pores that can soak up liquids faster than a sponge. This is why sealing your granite kitchen countertops is crucial. It acts as a protective shield against spills and stains, ensuring your counters stay in tip-top shape.

Related article: Wondering How To Install Countertops?: Read this.

Ah, the age-old question: “How often do I need to seal?” The frequency depends on a few factors, such as the type of sealant you use and how frequently your granite countertop sees action. 

A general rule of thumb is to seal every 1 to 3 years.

However, there’s a nifty trick to check if your granite needs resealing. Drop a few water droplets on the surface. If they bead up, you’re good to go. If they get absorbed, it’s time for some resealing action.

When it comes to sealing granite, not all sealers are created equal. There are two main types to consider: impregnating sealers and topical sealers. Impregnating sealers penetrate the stone to provide long-lasting protection without altering its appearance.

On the other hand, topical sealers create a protective layer on the surface. Opt for a high-quality impregnating sealer that suits your granite type for the best results.

Does New Granite Need to Be Sealed?

A common misconception is that new granite countertops come pre-sealed. While some granite slabs are sealed before installation, this isn’t always the case.

It’s crucial to confirm whether your new granite is sealed or not. Perform the water droplet test we mentioned earlier – if the water absorbs quickly, it’s time for a seal.

Curious about whether your granite counters are due for a fresh seal? Watch for signs like:

• Water absorbing into the surface

• Stains appearing after spills

• A change in the granite’s color

A simple water droplet test can help you determine if your granite needs sealing. Just place a few droplets of water on the surface – if the water is absorbed within 10-15 minutes, it’s time to reseal.

Here’s a helpful idea: check not just your kitchen but other areas in your house where granite is installed, like bathrooms or decorative dark slabs.

Over time, dirt and oils can penetrate the stone, especially in more dense sections. Once resealed, your granite will look shiny and well-protected again.

Keep your granite countertop shining by maintaining it. A natural stone like granite adds value and beauty to your home.

1. Clean Spills Promptly: Accidents happen, but don’t let spills linger. Clean them up ASAP to prevent any potential staining.

2. Gentle Cleaning: Use a mild, pH-balanced cleaner specifically for natural stone surfaces. Harsh chemicals can damage the seal and your granite.

3. Avoid Acidic Cleaners: Clear acidic substances like vinegar or lemon juice. They can eat away at the sealant and cause etching on your granite.

4. Use Cutting Boards: While granite is tough, it’s not invincible. To avoid scratches, always use cutting boards when chopping and slicing.

Let’s be honest. Sealing granite slabs sounds simple. But it’s easy to slip up if you’re not careful. Avoiding these little mistakes will keep your counters looking visible and durable for years.

Applying Too Much Sealer

You might think slathering on a ton of sealer is the way to go. Nope! Using a dry paper towel to spread just a thin layer is actually best. This way, applying the sealer works properly instead of sitting on top and getting sticky.

Skipping the Manufacturer’s Directions

Every sealer has its own rules—drying times, cure times, and even how to buff. Ignoring these instructions can leave your granite open to oil, water, or other damage. Following the directions is a tiny effort for a big payoff.

Forgetting the Water Test

Before tackling your whole countertop, try the classic water droplet test. Place a few drops of water and see if water beads on the surface. It’s a quick way to check if the sealer will stick—and avoid surprises.

Neglecting Regular Maintenance

Sealing is just part of the story. Routine cleaning, gentle wiping, and occasional polishing keep your granite beautiful. Skipping maintenance can dull the surface and shorten the life of your seal.

Avoid these slip-ups, and your granite counters will stay stunning, whether it’s in your kitchen, near the floor, or up against a wall.

Granite isn’t limited to countertops. It’s also popular for floors, bathroom vanities, and even decorative walls. Proper sealing is just as important outside the kitchen to prevent wear and maintain a durable surface.

Granite Floors and High-Traffic Areas

Sealing granite floors helps protect against scratches, spills, and epoxy stains from DIY renovations. Apply sealer evenly with a mop or soft cloth, following the manufacturer’s directions.

Bathroom Surfaces and Walls

Granite in bathrooms faces water, soap, and oil residues. Sealing prevents water spots and other damage, especially on vertical surfaces where moisture can accumulate.

Small Decorative Slabs

Even smaller granite pieces, like shelves or window sills, benefit from sealing. A thin layer applied with a soft cloth, buffed with a dry paper towel, preserves the stone’s appearance and prevents fading from sunlight or cleaning products.

Tips for All Spaces

• Always match the sealer type to the granite’s finish and location.

• Use a test drop of water to ensure water beads before finishing.

• Polishing after sealing enhances the stone’s natural beauty and sheen.

Sealing granite throughout your home not only protects your investment but also keeps every room looking visible, durable, and professionally finished, whether it’s a stand for decorations or a high-use countertop.

There you have it, folks—a crash course on a sealing granite counter. By taking a little time to seal and maintain your granite, you’re ensuring its longevity and preserving its stunning appearance.

So, whether you’re whipping up a culinary masterpiece in the kitchen or simply admiring the beauty of your granite, you can do so with confidence.

Remember, your granite counters deserve a little extra love. They’re not just surfaces but the heart of your home’s design.

MacLaren Kitchen & Bath has the biggest showroom and specializes in remodeling projects. MKB is a trusted choice for countertops. Contact us today at 610-436-5436 or make an appointment to visit our showroom.

We hope this has helped you learn how to seal granite countertops properly.