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Best Grout Sealers

Expert Reviews & Buying Guide

quadcopter reviewsBest Grout Sealers

Our Recommendations

In a hurry? Here are the best products at a glance.

HONEST BUYING GUIDES
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How to Choose the Best Grout Sealer

If you’re trying to take good care of your tile and grout, the best grout sealer is exactly what you need. You might be asking yourself, what kind of grout sealer is best? We wondered that, too, so we researched some of the best-selling, top-rated products available. We cover everything from 511 spray on grout sealer reviews to what you should use if you live near sea water. Here are some features you need to know before shopping.

Best Grout Sealers

Mildew Resistant: Sealing out mildew will keep your tiles looking clean. This is particularly important if you’re planning to use this product in your bathroom. That is without question where you’re most likely to see a lot of mold and mildew damage.

Best Grout Sealers

Transparent: All of these products dry so that they’re transparent. You don’t want your beautiful tile and grout to turn yellow or brown when you treat it! What use is a grout sealer if it’s going to make your grout look bad?

How to Choose the Best Grout Sealer

Use: Most of these products are suitable for indoor or outdoor use, though there are a few that are designed for indoor tile and grout only. Why? Because outdoor materials face a lot more abuse, especially if they’re near salt water.

Best Grout Sealers

Coverage: This is an estimate of how many square feet the bottle will cover. One thing to keep in mind is that some of these products only require 1 coat, others require 2. This will influence how much product you use.

Best Grout Sealers

Food Safe: It’s really important that you use a food safe product if you’re planning to do any work in your kitchen or anywhere your pets might eat their food. Luckily, all of these products are indeed food safe.

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Weight: If you need to know how much each bottle weighs, we included that for you. You can use this number and the square footage to figure out roughly how much product you’re actually getting. You’ll see, it varies a lot.

Top 10 Products

Now that we’ve covered our grout sealer buying guide, let’s move along to our grout sealer review. When you’re reading, keep in mind that we didn’t include any permanent grout sealer. Most of these are good for 3 to 5 years. If you’re in a hurry, check out our top and budget picks at the top of our list first. That’s the best place to start. Stick around if you can, these products are all really great. Ok, let’s go!

Miracle Sealants Sealer

Miracle Sealants Sealer
Our top pick is also a great choice if you’re looking for a tile and grout sealer for shower. Miracle Sealant Penetrating Sealer can do it all. It’s weather resistant and protects against UV damage which makes it a great choice for anything outdoors. It’s also food safe and designed to protect all medium to dense porous surfaces so you’ll be able to find uses for it all over your house. You can use it on so many different things, from sanded grout to ceramic tile, stucco to polished marble. It works by creating an invisible barrier that won’t let in moisture, grease, or stains while allowing vapor to evaporate. It penetrates instead of coating the surface so the appearance isn’t changed at all but the surface is protected.
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StoneTech Grout Sealer

StoneTech Grout Sealer
If you’re looking for ceramic tile and grout sealer that will work and you’re on a budget, check out the StoneTech Heavy Duty Grout Sealer. It was made for grout on ceramic and porcelain tiles. The water based formula protects against stains and makes it really easy to get the grout clean. It also protects against mold and mildew. And don’t worry, it won’t discolor your surfaces at all. You can use this one indoors or outdoors and it protects your surfaces from all kinds of tough stains and dirt. Application is super easy, too, just use a paint brush, roller, or pad and apply it to whatever surface you want to protect. If you’re using it on a floor, wait 4 hours until you can walk on the surface again.
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Tuff Duck Grout Sealer

Tuff Duck Grout Sealer
Tuff Duck Grout and Marble Sealer is on par with professionals choice tile stone and grout sealer. You can use it on a variety of materials in addition to grout: granite, marble, slate, limestone, concrete. Here’s what we really like about it: it only requires one coat. That’s right, it has twice the protective power of some of its competitors so you only need to worry about getting one coat done. This will definitely save you a lot of time! This is a penetrating sealer which means it soaks in below the surface. That’s why it leaves your tile, stone, and granite looking so natural. We like that it’s water-based but will still protect your surfaces against even oil based stains. One more thing, it’s effective both inside and out.
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Black Diamond Grout Sealer

Black Diamond Grout Sealer
When it comes to types of grout sealer, this Black Diamond Ultimate Grout Sealer is one of the best. It’s a penetrating sealer which means it goes deeply below the surface and bonds with the material. This makes for a really long-lasting seal and keeps the surface looking really natural. Black Diamond made this grout sealer colorless so it won’t change the color of your grout at all. One thing we really like about is that there are no harmful solvents which means you can use it no matter what kind of grout you have. It also prevents the growth of mold and mildew which make it perfect for bathrooms. Application is easy, too. Just apply and allow it to soak in. You’ll know it’s sealed when the product stops penetrating.
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Aqua Mix Grout Sealer

Aqua Mix Grout Sealer
It’s probably not a shock that Aqua Mix Grout Sealer is water-based. After all, it’s right there in the name. But that’s one of the things we really liked about it. It’s powerful enough to repel oil and even acid-based contaminants while still allowing any vapor to escape. That’s not all. It also inhibits mildew and bacteria growth, too, so it’s a great choice for bathrooms and kitchen. .The formula is really effective and actually lasts up to 5 years but it’s mild enough that you can even use it as a routine cleaning product if you wanted some extra protection. This will actually give you the best results over time. Best of all, you don’t need to worry about any staining. It’s color-free and doesn’t change the surface appearance of the grout.
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AFM Safecoat Grout Sealer

AFM Safecoat Grout Sealer
Next up is the AFM Safecoat Grout Sealer. This is an awesome product that provides good water resistance for up to 5 years. Here’s something you’ll really like when you’re applying it: it’s low odor. It actually meets or exceeds state air quality regulation, even in California which has some of the strictest laws in the US. This is a penetrating sealer that soaks in below the surface and actually bonds with the grout. This seals it off from stains and water damage while leaving the surface looking natural. It dries completely clear and doesn’t leave behind any discoloration at all. Application is easy. It’s a thin, clear liquid that you just apply with a paint brush. When it’s cured, you’ll see water beading on the surface instead of getting soaked into the grout.
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Dupont Grout Sealer

Dupont Grout Sealer
Dupont Grout Sealer is the next awesome pick in our grout stain and sealer reviews. This one is safe to use on grout with porcelain and ceramic tiles and has a Teflon based sealer that penetrates and keeps indoor grout protects for up to 3 years. It’s actually formulated for surfaces that are really porous. Why do we say that? Without getting too sciencey, the molecules are large and won’t easily soak into denser stonework. But this is precisely why it’s perfect for sealing very porous grout that other sealers might not work well on. If you’ve had trouble in the past, give this one a go. It might be just what your stubborn grout needs. Once it’s set, stains and water bead on the surface. Then, simply wipe them away before they get soaked in.
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Stella Sealants Grout Sealer

Stella Sealants Grout Sealer
Stella Sealants Grout Sealer is a penetrating sealer that’s water-based, breathable, and leave behind a natural look with no discoloration. You can use it on all natural stone, from marble to slate and even sandstone. This is such a solid product that you can even use it in commercial properties and in high traffic areas. Pretty impressive. Application is easy with this sealer, too. It comes in a spray bottle which makes it really easy to apply. Because it’s safe for food areas, you can even use it right on your kitchen counters. It’s also a great choice for bathroom tiles and grout, too. And get this: it even protects against the harsh effects of salt water. If you live by the ocean and cope with salty air damaging your patio, give this one a try.
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Serveon Sealants Grout Sealer

The thing that we liked the most about this Serveon Sealants Grout Sealer is that it’s ready for foot traffic only 1 hour after you apply it to your floors. That’s pretty awesome and will make the process of sealing your tile floors a little less time consuming. Application is easy and you’ll never get a white film left behind. Get this: you only have to use one coat! That’s a timesaver, too. You can use this product inside and outside. It protects everything from river rock to concrete and stucco to non-glazed brick. You can also use it on artificial stone if you wanted to. If you live by the ocean and are having a hard time finding something that can stand up to saltwater, you might want to consider this sealer from Serveon Sealants.
The thing that we liked the most about this Serveon Sealants Grout Sealer is that it’s ready for foot traffic only 1 hour after you apply it to your floors. That’s pretty awesome and will make the process of sealing your tile floors a little less time consuming. Application is easy and you’ll never get a white film left behind. Get this: you only have to use one coat! That’s a timesaver, too. You can use this product inside and outside. It protects everything from river rock to concrete and stucco to non-glazed brick. You can also use it on artificial stone if you wanted to. If you live by the ocean and are having a hard time finding something that can stand up to saltwater, you might want to consider this sealer from Serveon Sealants.
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Homax Silicone Grout Sealer

Last but not least, Homax Silicone Grout Sealer is another great option that can be used on grout both indoors and outdoors. Application is really easy. Why do we say that? This formula comes in a simple spray bottle so all you have to do it spray it on! Just coat the grout and let it soak in. Once the seal is formed, your grout will have an actual physical barrier that keeps out water and stains. Get this, it also protects against mildew and moisture while also letting moisture escape. You might be wondering why that’s important. Because it means you can apply it to new grout 2 weeks after the tile has been installed without worry about damage. The grout will still be allowed to dry completely while also getting much needed protection.
Last but not least, Homax Silicone Grout Sealer is another great option that can be used on grout both indoors and outdoors. Application is really easy. Why do we say that? This formula comes in a simple spray bottle so all you have to do it spray it on! Just coat the grout and let it soak in. Once the seal is formed, your grout will have an actual physical barrier that keeps out water and stains. Get this, it also protects against mildew and moisture while also letting moisture escape. You might be wondering why that’s important. Because it means you can apply it to new grout 2 weeks after the tile has been installed without worry about damage. The grout will still be allowed to dry completely while also getting much needed protection.
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