Best Grout Sealer for Shower Maximize your Tile Protection

Grout sealer is a must for maintaining the elegance of the tiles in your home. We all know that grout is needed for laying tiles, but it is quite spongy and porous. Therefore, a grout sealer is required to control the sponginess and porous properties of the grout and improve its life-span.

For a refined and neat tile look, Grout sealer is essential. It provides adequate tiling protection against any slip or injury. Due to the presence of so many mediocre products on the market, choosing the most appropriate grout sealer for your bathroom can be extremely confusing.

Today, we have included expert’s recommendations and in-depth reviews of the best grout sealer available.  If you are looking for the best grout sealer for shower to protect your floors and enhance its aesthetic integrity, then you must check our top picks below.

Best Grout Sealer for Shower

1. Miracle Sealants 511 QT SG 511 Impregnator Penetrating Sealer

Miracle Sealants Impregnator Sealer is the perfect choice for both indoor and outdoor tiling. With high penetrating power, it uses solvent-based solution to reach deeper into the grout layer. This ensures extended protection to the outer grout layers.

This impregnator type Sealant prevents your tiles from debris, dirt, and staining. Miracle Sealants is highly recommended by Contractors as it is weather resistant and U.V transparent. The U.V transparent feature forms a protective layer that inhibits moisture and stains thereby protecting the aesthetics of your tiles.

Also, this Sealant dries up to provide a slip-resistant textured finish making it safe and reliable to walk. You can use it for patio tiles, garages, shower, outdoor tiling and food area.  The oil-based compositions allow you to clean it easily using mineral spirits if you accidentally over apply it.


  • High penetrating sealant for profound and long-lasting protection
  • Can be used for both Interior and Exterior tiling
  • Weather and Stain resistant
  • Provides a Sleek and elegant look
  • U.V transparent helps to avoid discoloration


  • A bit of texture change

Bottom line

The ideal grout sealer designed for the complete protection of denser porous surface. The durable and moisture resistant composition assures long-lasting performance while still allowing vapor release. In short, a must-buy product.

2. Tuff Duck Granite, Grout and Marble Sealer

When the sand is extremely deep and porous, Tuff Duck acts as the ultimate solution. Due to its non-acidic formula, it can be applied on natural stones and concrete safely while protecting its charm. It is an integrated package of affordability and quality.

Tuff Duck Granite, Grout and Marble Sealer

Ideal for larger projects, this Grout Sealer penetrates to the bottom to provide exceptional moisture and bacteria protection. Used for multiple surface types like Granite, Travertine, Grout, Limestone, Slate, and Concrete, it serves as both marble and grout sealer.

A single coat of this Tuff Duck contains twice the active ingredients which come with other brands. Also, it does not alter the physical appearance of your delicate stone tile. The sturdy composition facilitates a robust penetrating shield even against the worst Grout Destroyer.


  • Multi-functional Sealer used for a variety of surfaces
  • A robust penetrating power which reaches the bottommost Grout layer
  • Protects your tile against chemicals, moisture, and bacteria
  • Easy to apply
  • Does not emit bad vapor


  • Less Sealant life implying high maintenance cost

Bottom line

If the lack of longevity does not spoil your plan, then Tuff Duck can be the best choice for you. Not only it withstands moisture, bacteria, and chemicals but it also complements your contemporary tiling design.

3. StoneTech BulletProof Sealer

StoneTech Heavy Duty Sealer provides maximum protection for a wide range of interior surfaces. The unique and advanced penetrating micro-bond protection reaches the grout layer and delivers absolute protection.

Built for protecting natural stones, it acts as a superb grout sealant. It is one of the toughest sealants available in the market. The innovative water-based Fluoropolymers endows professional sealing job with high coverage of 100 square feet.

StoneTech BulletProof Sealer

This impregnating type sealant protects the tiles against moisture and stains without any residue or smudges. Also, it has no discoloration effect allowing you to use on the light surface. Stonetech is a powerful and affordable sealant which can be used on a variety of surfaces to prevent it forever.


  • Delivers long-lasting and extra protection for natural stones and grout
  • Completely removes the stain without any residue or smudges
  • Very easy to use
  • Fluoropolymer chemicals protect against moisture and oil-based stains
  • No discoloration effect on Grout or tiles


  • Requires three to four coats

Bottom line

If you are looking for a robust and cost-effective grout sealer, then look no further. Made for heavy-duty traffic, it withstands stains and moisture while preventing the grout timelessly.

4. Tuff Duck Granite, Grout and Marble Sealer

Tuff Duck Sealer has always provided its ability in delivering maximum protection for a multitude of surface tiling options. The product is one of the very few sealers available on the market which really lives up to the expectation.

The internal composition is so potent that its single coat can endow incredible penetrating power for doing the job effortlessly. Also, the 22 oz can cover up to 800 square feet while protecting the interior surface for about five years. It can also be used for exterior tiling surfaces like Granite, Marble, Travertine, Limestone, and Concrete.

Tuff Duck Granite, Grout and Marble Sealers

A combination of Grout and Marble Sealer, it is enough to protect your natural stones and grout while maintaining its premium finish. Furthermore, this Tuff Duck Sealer shows high-resistant against rugged oil and water-based stains.


  • Can be used for both interior and exterior surfaces
  • Advance fluorochemicals make it highly stain resistant
  • Up to 5 years of interior surface protection
  • Works on a wide range of surfaces
  • Ultra-high penetrating power for utmost protection


  • Low Longevity
  • A Bit of discoloration issue

Bottom line

As the sealant deteriorates after some time, the maintenance cost associated with it can be high. Nevertheless, it is one of the most potent grout sealers which can protect your grout against the toughest grout destroyers.

5. Super Grout Additive

Ceramic Tile Super Grout is usually preferred by professionals due to its high waterproofing and grout repairing ability. Many contractors use Caulk or Silicone for making joint ceramic waterproof. But, this product by Ceramic tile outlasts Caulk and Silicone by providing 99 percent waterproofing assurance.

Super Grout Additive

The high shrinking capability of this Super Grout additive makes it an excellent choice for rigid construction. Apart from Sealing Ceramics, it can be used for sealing and protecting showers. The easy to use Mixture requires no tool for application and can permanently fix grout cracks and ceramics.

The Sealant has high longevity and is one of the best grout sealers for shower, tubs and sanded grout. Also, it provides a stiff resistance to fungus, mildew preserving the Grout performance.  Furthermore, you can apply to light areas as there are no discoloration problems.


  • Easy to use Sealant for shower, floors, tubs, ceramics and corner grout joints
  • High waterproofing ability that Outlasts caulk and Silicone
  • Durable Sealant for permanent grout repair
  • No such discoloration issue.
  • Inhibits growth of mildew, fungus, and molds


  • Leaves a bad odor after applying

Bottom line

Super Grout Additive is an ultimate sealer for preserving and repairing your grout. Although it is not the most elegant Grout Sealer, it is one of the sealers which you can apply and forget about forever.

6. Grout & Granite Penetrating Sealer from the Floor Guys

This product by The Floor Guys is unique and useful in many ways. Professionals use the Sealant because of its strength and high penetrating power.  After applying, it penetrates deep into the pores of the grout without changing the look of the tile.

Grout & Granite Penetrating Sealer

This Stone and Grout Sealer can be applied on various surfaces to maximize protection. Most silicone sealers only protect the water penetrating the tile but show no resistant to oil-stain. But, this sealant utilizes innovative fluoropolymers to avoid both water and oil-based stains.

The easy to apply solution by Floor Guys has no odor and is extremely long lasting. You can use a paintbrush to apply it directly and let it sit for 5 minutes. You can wash off the remaining by using a mop directly. Simple, quick and elegant!


  • High-performance natural stone and grout Sealer used by professionals
  • Extremely Easy to use
  • No odor
  • Penetrates deep into the grout layer for extra protection
  • Long-lasting formula.


  • Discoloration issue if applied to lighter areas.

Bottom line

A blend of simplicity and protection. This product is for the one who is looking for a robust, effective and odor-free grout sealant for their home.

7. Aqua Mix Sealer’s Choice Gold Quart

Aqua Mix has been the most reputed name when it comes to Sealer. The Sealer’s Choice gold exhibits a low VOC making it a water-based solution. The chief reason for using Aqua Mix is the trusted brand name appreciated by critics and expert worldwide.

Aqua Mix Sealer's Choice Gold Quart

The company promises to clear all the tough stains with thorough efficiency. Aqua Mix Sealer’s Choice Gold is utilized for robust protection on Porous tiles Grout, cement, limestone, travertine, porcelain, Saltillo, masonry and granite. This penetrating Sealer safeguards the deepest pores without altering your bathroom décor.

This water-based formula can be used for permanent stain protection on natural stone and grout. Also, you can use it in food prep and serving areas without any sheen look. Instead of using mediocre non-penetrating seals, you can use this effective sealant for offsetting the high maintenance cost.


  • Trusted brand name delivering quality products
  • Ultra-high penetrating sealer which provides maximum stain protection
  • Safeguards your porous grout tiles for up to 15 years
  • Used both indoor and outdoor on different surfaces
  • Ideal for food preparation area and bathroom


  • Low Coverage area
  • Difficult to remove oil-stains

Bottom line

Aqua Mix is one of the best alternatives to keep granite, masonry, travertine and other expensive tiles eroding over time. The high longevity, efficacy and discoloration-free feature make it a must-buy option for preserving your grout.

8. Dupont Grout and Stone Sealer

When you are concerned with heavy duty work, you can’t rely on the ordinary sealant. You need Heavy duty products like Dupont to complete the job with a professional touch efficiently. Dupont Grout/ Stone Sealer is made especially for heavy duty sealing work.

Dupont Stone Sealer

Apart from Grout, this formula can also be used to seal granite, travertine, and marble. It Not only maximize the strength to seal the grout but also clean it. So, while cleaning, you can make sure there is no smudges or residue.

The entire package is compacted into a quart but can be made 9 quarts by diluting it. It is easy-to-use and endows protection against both oil-based and water-based stains. As it works on cement, you can use it for your bathroom floor tiling job.


  • Protects against both water-based and oil-based stains
  • Heavy duty Grout Sealer for durable and professional sealing
  • Used on granite, travertine, and marble due to its alkaline nature
  • Extremely Reasonable


  • Lack of penetrating power for strong protection

Bottom line

If you are on a budget, then Dupont heavy duty grout sealer is a high pick. It can provide decent protection against tough stains and can be used on a variety of surfaces.

Factors To Consider Before Buying The Best Grout Sealer


Before buying any grout sealer, you must make sure that it has other functions as well. Choosing a multi-functional sealer can save you a lot of money and time. With a multi-purpose sealer, you can’t just seal the grout but can also use it for numerous projects at home.

Best Grout Sealer

It is better to make sure that the sealant can keep other surfaces as well like Cement, marble, Stone, granite or travertine from eroding over time. Some sealers can be used for both indoor and outdoor while some can only be used for an indoor tiling job.


The most important factor to consider before buying a grout sealer is its effectiveness. There are various substandard products on the market which fails to provide you with high penetrating power, everlasting performance, and professional look.

So, you must understand the efficiency of the sealer, how effortlessly it can prevent the grout from stains and how long it can survive before purchasing any grout sealer.


As you are spending a lot on your interiors, tiles, and grout, you don’t want it to be temporary. When it comes to grout sealers, you want them to protect your tiles for at least 3-5 years. Otherwise, it would merely be a wastage of money.


If you are looking for sealing the grout in your bathroom, near the shower, you must make sure that the sealer is waterproof. In the areas which are exposed to water regularly, you can’t expect a low-quality sealer to protect your tiles.


A Coatings acts like a sacrificial Grout protective layer which is directly applied to it. They are very cheaper and easy-to-apply.  But, they lack strong protection and can allow deterioration of the grout when exposed to UV light or tough stains.

Penetrating Sealers

Penetrating Sealer or impregnator goes deep into the grout and builds a protective layer. It is much stronger than coatings but produces flammable vapors and VOCs.

There are two types of penetrating Grout Sealers: Hydrophobic and Oleophobic.

Hydrophobic: This type of penetrating sealer shows a high resistance towards water-based substances like coffee, tea, juices, etc. It should not be used in food-preparation areas. Great for bathrooms.

Oleophobic: This type of penetrating Grout sealer resist both water and oil-based chemicals like cooking fat, oils, and lard. It is ideal for food preparation and serving areas.

Color Sealing

Color sealing is more of a remodeling process where you change the color of the grout. If you want to change the color of the grout or remove the existing grout stains, you can go for color sealing.

How to Floor Grout

What is the Best Grout Sealer?

Grout sealer is merely the adhesive substance applied to the porous grout between the tiles to maximize its life. It helps the grout to avoid water absorption and withstand staining.

Epoxy-based grout doesn’t need a sealer because they can naturally shed water. But, they are way more expensive can trickier to mix.

Grout sealers are easy to apply usually but can be tedious. The smaller the size of the tile, more will be the grout in the joints. If you have installed a larger format tile, your grout sealing job can be enormously easier and faster.

There are three types of grout sealers available on the market – coatings, penetrating sealers and color sealing.

What Type of Grout sealer to Use in a Shower?

It is imperative to seal the grout in the shower because of their porous nature. The pores in the Grout absorbs the water eventually causing the tile to sag and peel off. Sealing ceases the absorption of water or moisture.

The Grout in Shower tiles is usually Portland cement blended with water and powdered pigments. For sealing these tile joints, you have to use a powerful Hydrophobic Grout Sealant. Look for something which can be applied on both sanded and unsanded grout. Also, you should go for a sealant which can be utilized for both Grout and cement Sealing.

Which One Should I Buy?

Sometimes, Contractors don’t seal the grout properly causing significant damage to the surface. Not only it includes high repairing cost but can also make you susceptible to various injuries. So, grout sealant is a must for longer lasting tiles.

We have contemplated various grout sealer available today and enlisted the best grout sealer for you. This list can help you avoid the mediocre products in the market and opt for credible and useful products. With this list in hand, you can go ahead and make the most appropriate decision for your home tiles.

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