10 Best Grout Sealers in 2021

best grout sealer

Have you recently installed a new floor? Do you want to protect the tiles from chipping or the grout from rumbling? Do you want to elongate the lifespan of your floor? If you have answered in the affirmative to any of these questions, you should be looking for a grout sealer.

Finding the perfect grout sealer requires some delicacy and good decision making. Since there are many products in the market, your job might seem even more formidable. Therefore, to help you, we have made a list of the best grout sealer you can find in the market. 

The purpose of this article is to help you buy the best grout sealer according to your preferences. Therefore, we have come up with three convenient categories that you can easily choose from. You will find detailed reviews of each product later in the article. 

Disclaimer – This article may contain affiliate links, this means that at no cost to you, we may receive a small commission for qualifying purchases.

Best Overall Product

Aqua Mix Sealer’s Choice Gold 

Aqua Mix Sealer's Choice Gold 
  • Water-based formula
  • 15-year re-application
  • Suitable for granite and porcelain
  • Is mixable with cement

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Best Premium Product

StoneTech Heavy Duty Grout Sealer

StoneTech Heavy Duty Grout Sealer
  • Water-based solution
  • Can protect tiles from stains
  • Can be used for both interior and exterior purposes
  • Easy to apply

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Best Budget Product

Black Diamond Stoneworks Ultimate Grout Sealer 

Black Diamond Stoneworks Ultimate Grout Sealer 
  • Easy on the pocket
  • Low odor 
  • Can be used as stain protector
  • Elongated your floor’s life

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While the products listed above are the best in their segments, we understand that you might need more options. In his section, you will find detailed reviews of the products mentioned above and seven other fantastic options. You can choose any one of these products to fulfill your needs.

1. Aqua Mix Sealer’s Choice Gold

Aqua Mix Sealer's Choice Gold

The manufacturer had good reason to name the product ‘sealer’s choice.’ Aqua’s grout sealer is undoubtedly one of the best grout sealers that you can find in the market. Not only does it serve its purpose perfectly, but it also has a decorative edge to it. It is used as a filler covering any surface between tiles to get that protective solid surface asked for. 

This no-sheen sealer is as natural looking as possible and provides extensive protection with its water-based solution. We like the most about this sealer because it can be used over any stone, such as Saltillo, granite, masonry, travertine, limestone, and marble. 

This grout is specially designed for food prep areas and can provide stain protection to your tiles. This is because this formula is sealer-safe and maintains a clean surface area. Another great thing about this grout is that it can last for about 15 years till it will require re-application. 

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  • 15-year re-application period
  • Water-based formula
  • Can be applied over any stone type
  • Protective as well as decorative
  • Sealer-safe for food preparation areas


  • Requires multiple coats for tile stain protection; therefore, while the product is affordable, the application is expensive.

2. StoneTech Heavy Duty Grout Sealer

StoneTech Heavy Duty Grout Sealer

If you are looking for a heavy-duty grout sealer that will help you not only indoors but also outdoors, this is the product for you. This product is our premium pick because of the industrial-strength protection that it is capable of providing. 

This is a water-based grout sealer that can protect your tiles from any water- and oil-based stains. Therefore, with the application of this sealer, you will not have difficulty cleaning your flooring again. While this sealer is made to work best with cement-based grout, it can also work with porcelain, natural stone, and ceramic tiles. 

A great thing about this product is that even though it is expensive, the application kind of makes up for it. In most cases, you will be done with only two coats. However, if your grout is too porous, a third coat will be more than enough. Overall, it provides a coverage of about 1,000 linear feet per gallon.

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Application is easy with the instruction manual provided. It takes only 15 minutes to have a good coating of this grout sealer protecting your flooring. If you are using this sealer inside, it can last for up to 5 years, and it lasts for about three years when used outside. 

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  • Water-based solution
  • Works as a stain protector
  • Easy to apply
  • Can be used both outdoor and indoor
  • Good coverage area


  • Odorous
  • Wear time is not too long.

3. Black Diamond Stoneworks Ultimate Grout Sealer

Black Diamond Stoneworks Ultimate Grout Sealer

This is a grout sealer that is not only easy on the pocket but also very efficient. Even though this sealer costs less, you do not have to worry about the quality of protection you get with the sealer.

Not all budget products can protect the grout from germs and dirt, but this one can. This sealer has the capability of fighting mildew growth and mold. This protection quality of the sealer allows your flooring to last for at least a decade longer. 

With this sealer, you also get to protect your tiles from water- and oil-based stains; therefore, it is an ideal sealer for water-centric rooms such as bathrooms and kitchens. Applying this sealer is also very easy as it comes with an instruction manual that walks you through the right application method. You get all of these benefits at such a low price with a low odor formula. 

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  • Long-lasting
  • Super protection
  • Easy on the pocket
  • Low odor
  • Reduces maintenance


  • Can not be used for industrial-strength usage

4. Miracle Sealants 511 PT SG Impregnator Sealer

Miracle Sealants 511 PT SG Impregnator Sealer

Another great product used for both interior and exterior purposes is Miracle Sealants 511 Impregnator Sealer. The reason why it is excellent for interior use is that it is a non-slip sealer. It is an exterior sealer because it is weather-resistant and can fight against UV rays.

It is a transparent sealer that is made from a polymerized silicone solution formula. The transparency allows the sealer to be invisible once it dries on the surface of your floor. Therefore, you can achieve a natural look while attaining non-slippery and stain-free floors.

While the coverage area ultimately depends on how porous the grout is, it generally offers good coverage. It will cover about 400 square feet area with just a pint worth of usage. All you need to do to apply this sealer is put it on a brush, roller, or clean towel and apply it on the surface in question. It dries off within 5 minutes and is therefore very convenient to apply. 

The company provides a 20-year satisfaction warranty on this product. However, it is not low on VOC and has a strong odor. 

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  • Affordable
  • 20-year guarantee
  • Covers large areas
  • Natural look
  • Easy and quick to apply


  • High VOC
  • High odor

5. Tuff Duck Granite Grout and Marble Sealer

Tuff Duck Granite Grout and Marble Sealer

If you use a grout sealer on natural stone and want it to penetrate the stone, this is the product for you. While the Tuff Duck Marble sear can penetrate the stone in question, it does not affect the stone surface’s natural quality and looks. 

This sealer is a water-based fluoropolymer; therefore, it can protect the stone from severe water and oil stains. The coverage is also decent since a quart jug of this sealer can easily cover about 200sqqsuare feet of indoor or outdoor area. 

This is not a very expensive sealer; however, the application is not very economical either. It needs multiple coat applications, and the durability of each coat is not as long as other sealers in the market. You will also have to avoid streak marks and elbow grease to get the perfect results. 

This product is low in VOC. It is, therefore, considerable sealer-safe as it has a low odor and low fumes. 

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  • Water-based solution
  • Decent coverage area
  • Low VOC, low odor
  • Penetrates stones for natural coverage 


  • Complicated and expensive application
  • Requires frequent re-application

6. Ultra Dry 70 – Stone Sealer 

Ultra Dry 70 - Stone Sealer 

As the company’s name suggests, there is no high-grade grout sealer in the market that dries as quickly as this one. The sealer has the capability of protecting your floors from stains, saltwater, oil, and water. This is why it is ideal for use in kitchens. 

This grout sealer is best used on surfaces such as marble, granite, travertine, and limestone. While it is best used indoors, it can also be used outdoors for great results, but coats’ durability will vary. 

This sealer’s coverage area is excellent as a gallon can cover up to 3,000 square feet of space. The great thing about this high-end sealer is that it will not tamper with the floor’s natural look.

Low on VOC, this product is safe to use in a house with children and pets. However, it still has a high odor that does not dissipate efficiently. For best results, you might want to leave the room well ventilated and empty for at least a day. 

A great non-product related thing about buying this sealer is that it is very responsive to its customers. It provides a 100% satisfaction guarantee, and you can get any query solved quickly. 

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  • Water-based solution
  • Can be used in high-traffic areas
  • Large coverage area
  • Affordable


  • Very high on the odor that does not dissipate easily

7. FILA Surface Care Grout Sealer

FILA Surface Care Grout Sealer

Nothing says secure home as vociferously as a VOC free grout sealer. The FILA Surface Care Grout Sealer is one such product that will help you be relaxed about the results of grout on your home health environment. That is especially the case if you or any family member has respiratory issues.

This water-based sealer is ideal for outdoor and indoor use, while the durability of coats might vary. This sealer will make your life easier as it will help protect your floor from oil and water stains. Twenty-four ounces of this sealer can cover at least 350 square feet of area. 

The best thing about this is that not only is the application economical, but the firmness of coats is exemplary. Not only is this product economical, but it also helps get a mild seal on your floor against mold. 

This product can be used in several kinds of stones. However, this is not the right product for you if you want a natural look because this sealer might discolor over time. 

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  • VOC and PFOA free
  • Slight to no odor
  • Affordable
  • Good coverage


  • Discoloration over time
  • Not ideal for all stone types

8. Aqua-X Clear Grout Sealer

Aqua-X Clear Grout Sealer

If you are looking for a solution to seal your grout for a less area, this is the best product that you can get. This water-based sealer is perfect when you want a clear coat of sealer over your tiles. Not only does this protect your tiles from molding, but it also increases the natural lifespan of your tiles.

Another great thing about this product is that it has low VOC. Therefore, if you are allergic to certain chemicals or have respiratory concerns, this fun-size package is excellent for you. The application of this product is also very convenient as it comes in a spray-on bottle. 

This sealer’s coverage area is exemplary as a 16-ounce bottle is enough to cover about 75 square feet of area. What’s better is that you can expect this sealer to last for at least five years after application. The only problem with this sealer is that it does not penetrate the stone’s surface and merely sits on the surface.

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9. AFM Safecoat Grout Sealer

AFM Safecoat Grout Sealer

Another fantastic product that you can opt for if you are looking for a zero VOC sealer is the AFM Safecoat Grout Sealer. It has next to no odor, which does not take time to dissipate. This is a great product when you are looking for safe substitutes to reinforce your floor’s safety while also looking out for your family’s health. 

Since this is a penetrating sealer, it can protect your floor from water penetration. It works best on grout and porous tiles. However, this is not the best product if you are looking for sealing properties. 

The company advises you to apply this sealer generously, but you must make sure that you do not puddle the product anywhere. In general terms, a quart can cover about 75squarefeet of tiles or grout area. 

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  • No VOC
  • Little to no odor that dissipates quickly
  • Saves the tiles from water penetration


  • Mildly effective seal

10. Homax 9324 Silicone Grout Sealer

Homax 9324 Silicone Grout Sealer

Unlike most grout sealers on this list, the Homax grout sealer is a silicone-based product. A layer of silicone over your floors no only makes the tiles water and oil resistant but also increases the grip on the floor.

This grout sealer has the capability of protecting your floor from water penetration, soiling, and mildew. There is no doubt about the fact that with the help of this sealer, you can safely elongate the life of your floors. Another great thing about a silicone-based sealer is that it has a different base but looks natural as a water-based sealer.

This is an effective sealer when you want to safely protect your tiles. That is because this sealer has almost no VOC in it. Since it comes in a trigger spray bottle, it is easy to apply. You can do an excellent DIY project out of the grout sealer process.

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  • Penetrates floors
  • Increased tile’s lifespan
  • Silicone-based


  • Low coverage area

Grout Sealer Buying Guide

Given below are certain things that you must make sure of if you want to get the best grout sealer for your house. Keep all these things in mind and make the right purchasing decision.  

Sealer Types

There are two types of grout sealers – penetrating and non-penetrating. While penetrating grout sealers are great for long-term use as they seep inside the surface, they can be hard t remove. Non-penetrating sealers are usually cost-friendly, but they have less durability. 


The application coverage that a grout sealer provides is crucial since that defines the product’s economic value. Some cheap sealers are so light that they multiple coats of application. This makes up for the low cost. You must always look into how much area a specific quantity of the sealer can cover and how many coats will be required for optimum protection. 

Application Convenience 

Most grout sealers need to be applied by a brush. However, some sealers come I spray bottles or tubes. This makes applying them very easy and fun, even though the fun options are only efficient for small areas. 

VOC Content

It is crucial to make sure that your buying product is either has low or no VOC content. VOC is not only dangerous to the environment but is also hazardous to human health. If you or anyone in your family has respiratory issues, you must avoid VOC products.

Summing Up

Since soil is porous, it requires some kind of sealing to get some sort of grounding. Only a grout-sealer can help you do that. Not only do sealers provide stability, but they also protect your flooring from stains and mold. Therefore, getting the right grout sealer is of utmost importance. The above-given buyer’s guide and products list must have helped you pick the right grout sealer for your needs.

Written by:

Hi there! My name is Herbert Miller and I´m one of these you could call a real handyman. My hobby is to fix everything whenever it comes to cars or stuff in my garden. I created this website to share my knowledge with all the different tools I have tried through the years.