Best Grout Sealer for Shower in 2020 – Review & Buying Guide

When a surface is tiled, it can add an elegant and refined look to any floor or wall. But it is very difficult to keep both tile and grout if we don’t use proper protection. So to protect them from moisture, bacteria and general erosion, grout needs to be sealed from the elements. It is very important to put grout sealer whenever you are installing tiles in a shower as a shower pan. A good grout sealer is the key to keep a tile surface protected for many years before needing to be repaired.

The functions of most of the grout sealers is pretty much the same. Their basic job is to seep into the grout so that it may fill in all the spaces that may welcome dirt, moisture and bacteria which will break down the grout over time. There are some sealers which can be used for multi-purpose as well. You can use them to seal grout, tile, concrete and other common stones as well so that it may last long and provide a protective finish. You can get sealers in many forms such as: Spray-on, gallon tanks and tubes. Among these forms, you need to choose the type that will provide enough sealant in an easy-to-apply manner for your project.

We know that it is very difficult to choose the best one among the varieties of products in the market and that is why we are here. If you follow the article, we hope that you will get to know everything about grout sealer and will be able to select the best grout sealer for your shower.

Best Grout Sealer Review

1. Miracle Sealants GRT SLR 6-Ounce Grout Sealer:

Miracle Sealants GRT SLR 6-Ounce Grout sealer is one of the best grout sealers in the market for the shower. The Coverage range of this sealer is 60-115 square feet per 6-ounce which means that if you use the full 6-ounce bottle you will be able to cover 60-115 square feet.

This implies that you need to use 14 milliliters to cover 5 square meters. You can use this for both external and internal usage. The grout sealer is perfectly weather resistant. The most interesting thing about this product is that you will get a convenient applicator bottle with which you can apply the sealer very easily and safely.

2. Miracle Sealants 511 QT SG 511 Impregnator Penetrating Sealer:

Miracle Sealants 511QT6 511 Impregnator Penetrating Sealers

Miracle sealants 511 QT SG 511 Impregnator Penetrating sealer is one of the most trending products in the market because of its unique and useful features. The first thing that needs to be mentioned is that it can cover 1000 – 4000 square feet of space per gallon which implies that you need to use 3.785 liters to cover 90 – 364 square meters.

You can use this sealer for not only internal users but also for external usage. It is a weather resistant sealer. The most unique thing about this sealer is that it is U.V. transparent and you can use this sealer in food areas as well.

3. CUSTOM BLDG PRODUCTS TLPS24Z 24-Ounce Grout/Tile Sealer:

Custom BLDG products TLPS24Z 24-Ounce grout/ Tile sealer is one of the best grout or tile sealers in the market. The most attractive thing about this sealer is that it is very easy to use.

You just need to put the sealer in the blank spaces between the tiles. You can use this in both indoor and outdoor. The sealer resists most common stains including white hazing on tile surfaces.

4. Aqua Mix Grout Sealer Dual Protection:

Aqua Mix Grout sealer dual protection is popular among the people because of its being a water-based sealer. This water-based sealer resists the common contaminants. Oil-based and acid-based contaminants are repelled by the sealer and mildew and bacteria are also inhibited.

The formula of the sealer lasts for long up to 5 years and it also outperforms the silicone sealers. The grout sealer is best for the grout joints which are of cement sanded and un-sanded porous. The Aqua mix grout sealer acts like an ideal routine cleaner against food stains, grease, oil and many more.

5. Black Diamond UGS PT Ultimate Grout Sealer Pint:

Black Diamond UGS PT Ultimate Grout Sealer Pint has become a popular choice among the people as it is premium grout sealer. The features of this sealer has made it a premium product and as well as a popular one.

It is very easy to use. Anybody can use it very well. It protects the grouts and repels the stains. The growth of the mold and mildew are also inhibited by the sealer.

6. Tuff Duck Granite, Grout and Marble Sealer:

Tuff Duck Granite, Grout and Marble sealer is popular because of its multipurpose capability. The sealer gives maximum protection for various stone and tiles such as Granite, Grout, Marble, Travertine, Limestone, Slate, and even Concrete. But these penetrating sealer doesn’t affect the natural appearance of the delicate stone which is used in your surface.

The non-acidic formula of the sealer provides coverage of up to 200 square feet. The proper protection is ensured by the active ingredient of the sealer. The sealer can protect the interior surface for up to 5 years and exterior for 3 years.

7. Black Diamond Nex-Gen Natural Stone Penetrating Sealer:

Black Diamond Nex-Gen Natural Stone Penetrating Sealer is the one which will give you long-lasting protection along with professional results. The sealer usage is very simple. Your granite will be protected from oil, coffee, food, wine, grease, ink, and germs by using the sealer.

The sealer is designed non-toxic and non-corrosive impregnator. The sealer is safe for food contact and you can use it not only internally but also externally.

8. Aqua Mix Sealer’s Choice Gold Quart:

Aqua Mix Sealer’s Choice Gold is a popular choice in the market because of its natural look and is a penetrating sealer. The water-based formula has made it a world-wide best seller. You can use it for multipurpose which implies that it is ideal for granite, limestone, marble, slate, travertine, porcelain, Saltillo, cement, and masonry.

You can use this sealer in food prep and serving areas and also as a pre-grouting sealer. The most useful thing about this one is that it provides protection from stain and maintain the natural look of the stone and tile.

9. Afm Safecoat Grout Sealer:

Afm Safecoat grout sealer is one of the best grout sealers that are available in the current market. It is a good water resistant sealer which can protect the grout and tile for up to five years when properly applied. The sealer is of low odor and it doesn’t get offended to the installer and occupant.

As the sealer is chemically sensitive so you need to use it safely. The sealer doesn’t contain any formaldehyde which is a positive side and a reason to be popular.

10. Dupont High Gloss Sealer & Finisher:

Dupont High gloss sealer and finisher will prove to be one of the best products for your shower. The Dupont high gloss sealer is mostly used on slate, Saltillo, textured limestone and textured travertine. The most attractive side of this product is that it provides high gloss and wet look shine. You can deepen and enhances the color by using this sealer. The Teflon which is an ingredient of the sealer provides protection against stains.

Things to Consider Before Buying

Before buying something, you need to know about some factors of the products if you want to get the best one. The following factors are the ones that you need to consider before buying a grout sealer.


You need to look at the features and functions of the grout sealer before buying one. You should also look at its other functions apart from being a grout sealer. Because if you buy a multi-purpose sealer then you can use it in many projects around your home. So the sealer must be an effective one and it should also provide some other facilities as well so that you can get highest value from the grout sealer.


There are many products available in the market. We can’t say that all the products are effective but we can surely say that the product that we have listed here are effective ones. We don’t know that which product you will prefer but we have listed almost all the effective products available in the market.
Now here comes the big question that how would you know if a product is effective or not. Well the answer will be the product reviews. These are the ones which will help you to distinguish the product which are most effective. Anyway, effectiveness of the grout sealer mostly depends on the type of surface you have and whether you have applied the sealer correctly or not.


Longevity is another important thing to look up and consider before buying. Because it is something which we can’t use daily on the tiles. So the sealer should be durable enough. For this reason we should chose those sealer which will last up to 3-5 years and after that it would need reapplication. Otherwise, the surface won’t last long and we will be wasting our money and as well as effort.

Color Sealing

If you are an aesthetic and looking for something special then there are also sealants which can add color to your grout. These sealants can be great but mostly they come in a non-penetrating type of sealer. You shouldn’t sacrifice the durability of the sealer for a bit of extra color and that is why you should get the best sealant you can afford no matter what.

Final Verdict

We are almost at the end of our article. We sincerely hope that we have become successful in our objectives which is to let you know about the best products and their features and to show you the things that you need to consider before buying. So we hope that now you will be able to make a clever purchase decision and will be able to buy the best grout sealer for your shower. And lastly, if you are using acrylic shower pan then you don’t have to use the grout sealer.

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