The Best Sealer for Marble (2021) – Reviews & Buying Guide

Marble is one of the most beautiful natural materials that you can use to decorate your home. Because of its aesthetic appeal, many homeowners choose it for their countertops, bathrooms, and floors. 

Besides, considering it’s a calcium-based stone, marble is very hard and strong. However, even with this toughness, marbles can also be porous. This is not a very good thing! In simpler terms, porous means that marble surfaces are vulnerable to damage from water and other liquid substances. 

Best Sealer for Marble

To minimize the damage, you need to protect them with the best sealer for marble. Otherwise, their incredible appearance will fade away over time. Not to forget that liquids can leave stains on your marble surface. Overall, sealing marble will help it preserve its beauty, value, integrity, and extend its lifespan! 

Choosing the best sealer is not that easy though! Worst of all, with so many options in the market, the chances of choosing the wrong sealer for marble are quite high. Also, remember marble contains calcium carbonate, so choosing a sealer with acids and harsh chemicals will erode it! 

We know, all these things can be very confusing, especially if you aren’t familiar with marble sealing! You don’t have to go through all that hassle! 

We’ve already listed the best marble sealers that will help you with that! These sealers will protect your marble from water damage and keep it looking beautiful for longer! 

8 Best Sealer for Marble Reviews

1. TriNova Granite Sealer and Protector 

TriNova Granite Sealer and Protector

On top of our list is this 2-in-1 granite sealer from Tri-Nova! A sealer with incredible features, and more importantly, a product that acts as both a sealer and a protector. 

That’s right! 

This sealer seeps into the surfaces’ pores to seal them completely and creates a protective layer of your marble surface to provide superior protection. So, with this sealer, expect your marble surfaces to stay in good condition for many years to come. 

Also, just because this product is a granite sealer, doesn’t mean that it’s only intended for use in granites and marble. Indeed, you can use it on various surfaces including marble, quartzite, quartz, and soapstone among others. 

When it comes to the formula, this professional sealer is made from a blend of powerful polymers. This advanced formulation easily penetrates the porous marble surface and protects it from watermarks, spots as well as stains caused by soap and oils. 

Moreover, this sealer has a water-based formula that is free from bad odors and harsh chemicals. For that reason, you don’t need ventilation when using this sealer. This also makes it ideal for both outdoor and indoor spaces. 

This sealer is available in a convenient 18-ounce spray bottle that ensures easy application. Besides, this bottle contains enough solution to cover an area of about 100 sq. ft.   

After application, you don’t have to wait the entire day to use your marble surfaces. This is because the sealer has a fast-setting and quick drying time. To be precise, you can even use your marble surfaces one hour after use. 

On the downside, the protection offered by this sealer is not that long-lasting. Therefore, you have to reseal the surface after a couple of weeks, particularly if it’s used regularly. Also, considering that the sealer can cover 100 sq. ft. using this product can get costly when sealing larger areas. 

Other than that, this marble sealer is a great option for protecting your marble surface and other porous stone surfaces from water damage and unwanted stains. 

Pros 

  • Quick-drying and setting time 
  • Convenient application 
  • Seals and forms a protective layer 
  • Works on many porous stone surfaces 

Cons 

  • A bit costly than other average sealers 
  • Requires re-sealing after some time 

2. Granite Gold Sealer 

Granite Gold Sealer

Granite Gold Inc. is a family-owned company that has been manufacturing stone care products for 3 generations now. For that, the expertise and quality of these products are far much superior as compared to other companies. And their Granite Gold Sealer demonstrates that! 

This spray-on marble sealer protects natural stones against oil, water as well as etching. Above all, it provides a thick protection layer that helps the surfaces to resist dents and scratches. 

The best thing about this sealer is that its water-based formula is non-toxic, non-acidic, and bio-degradable. Therefore, it’s safe to apply on almost every type of surface including marble, granite, slate, grout, limestone, and travertine. You can use it in the kitchen, bathroom and any other place you want. Besides, it doesn’t produce unpleasant odors, while the lack of acids indicates that it doesn’t cause surface discoloration. 

As far as the application is concerned, this sealer is very easy to use since it even comes with instructions. You just need to spray it onto the intended area, directly from the 24-ounce bottle. You’ll be surprised to find out that this bottle contains enough solution to cover an area of about 200 sq. ft. after application, the solution dries in just 20 minutes. Afterward, you can apply a second coat for excellent results. 

When the sealer dries fully, it forms a hard layer that protects your marble from water, oils, and other substances. Besides, the sealer offers a durable shiny, and elegant look that doesn’t scratch easily, making it the best marble sealer for kitchen counters.

This sealer is not without drawbacks though! For instance, if you want to offer your marble surfaces full protection, you’ve to apply many coats of this sealer. While doing so, give each coat at least 20 minutes to dry before you apply the next. Moreover, you have to re-apply this sealer after every year and you’ve to wait for more than 24 hours after application before you polish the surface. 

Pros 

  • Provides a hard and long-lasting finish
  • Works on various stone surfaces 
  • Ideal for food preparation surfaces 
  • Safe-to-use formula 

Cons 

  • Requires multiple coats for excellent results 
  • Only lasts for one year 

3. Black Diamond Granite PLUS Cleaner and Sealer 

Black Diamond Granite PLUS Cleaner and Sealer

If your marble surfaces are dirty, just sealing them is not enough. Besides, sealing the surface will only actually seal in that dirt, making it hard to remove! Luckily, this Granite Plus product from Black Diamond serves both as a cleaner and a sealer! 

As far as cleaning is concerned, this sealer is so effective that one can use it instead of a regular cleaner. As such, every time your marble wants to be cleaned, spray over the dirty surface with this product. And not just marble surfaces! Indeed, this cleaner and sealer work on various stone surfaces. This includes; granite, limestone, travertine, and other similar surfaces. 

Best of all, apart from being cleaned, the surface received enhanced protection as well. 

Regarding the packaging, this sealer comes in different sizes. For instance, you can find it in 34-ounce, 24-ounce, 18-ounce, and even in 128-ounce bottles. Therefore, you can easily choose the ideal bottle size depending on your marble sealing needs. 

 Similar to the marble sealer we’ve looked at so far, this product is easy to apply. It comes ready to use, meaning you just need to apply it over the dirty surface and wipe it down with a clean microfiber cloth after use. 

Once dry, the sealer will leave the surface with a new, shiny look. More importantly, it will seal the surfaces to protect them from spills and stains. Furthermore, this sealer makes the surface skid-proof for kids to prevent accidental slip-ups. 

One thing with this product though is that it doesn’t have enough strength to eliminate soap scum. Therefore, it may not be very effective if applied in older bathrooms. Also, if you want to get excellent results, you’ve to apply the sealer after every 2 months. 

Pros 

  • Makes marble surfaces safe for kids
  • Cleans and seals marble surface 
  • Has a pleasant scent
  • Works on various types of natural stone surfaces 

Cons 

  • Requires re-application after every 2 months 
  • Doesn’t remove soap scum 

4. StoneTech BulletProof Sealer 

StoneTech BulletProof Sealer

Sometimes finding a long-lasting marble sealer is not that easy! So, if that’s what you’re looking for in a sealer, then you should check out this one from StoneTech!

It can last for about 3 years on external surfaces and 5 years on internal marble surfaces. For that, it’s ranked among the most durable sealers out there today! 

However, longevity is not the only incredible feature that this sealer has to offer. You get so many benefits from buying this sealer. 

 For instance, it gives surfaces maximum protection against oil-based and water-based stains. Also, according to the manufacturer, this formula provides ‘micro bond protection’. This indicates that the sealer bonds with natural stone surfaces more durably and strongly than other similar sealers. 

It is made up of water-based fluoro-chemicals that protect the surfaces against the toughest stains, and it doesn’t produce any odors. Moreover, this sealer can effectively protect surfaces from mold or mildew. 

Unlike the marble sealers above, this product doesn’t come in a spray bottle. Instead, it’s available in a 1-quart bottle, containing enough solution to cover an area of about 100 sq. ft. 

The other great thing about this sealer is that it’s very versatile. As such, you can use it on various surfaces including marble, slate, granite, limestone, sandstone, travertine, and slate. Also, the application process is quite simple, as the sealer even comes with instructions that you can follow for proper sealing of the marble surface. 

After application, this sealer takes about 48 hours to cure. Therefore, it’s good to reduce traffic on the sealed surface to avoid messing with the marble.

The only issue with this sealer is that it has high viscosity which makes the application process a bit tedious. However, this property makes it the best marble sealer for shower walls and floors. To obtain excellent performance, we recommend that you apply at least 3 layers of this sealer! 

Pros 

  • Protects surfaces from tough oil- and water-based stains 
  • It lasts 3 to 5 years 
  • Tough and durable 

Cons 

  • Long drying time 
  • A bit expensive

5. Miracle Sealant Porous PLUS Sealer 

Miracle Sealant Porous PLUS Sealer

Considered the best option for DIYers and professionals, the Miracle 511 Sealer dries fast and doesn’t leave marks behind. But the most interesting feature of this sealer is its durability! It can protect your marble surfaces for up to twenty years after application, something you may not find with other sealers! 

That’s not the unique feature that sets this product from the rest! 

If you’ve carefully gone through the above sealers, you may have noticed they have one thing in common: they’ve got a water-based formula! Right? 

Well, that’s not the case with this sealer from Miracle Sealants. Instead, this sealer is solvent-based. Even so, this formula penetrates deep into the natural stone surfaces, protecting it from water and other liquid substances. 

Also, in terms of coverage, this sealer is unique. It comes in a 1-quart (32-ounce) bottle with enough solution to cover an area of about 1,000 sq. ft. If you don’t apply the entire sealer on your marble surface, you’ll be glad to know that it works on other surfaces. This includes natural stone, grout, quartz, and even ceramic tiles. 

This formula can resist UV rays and weather elements. Therefore, you can use it on both indoor and outdoor surfaces without worrying about it being damaged/degraded by rain or sun. 

One thing you should always keep in mind though is that this solvent-based formula is very powerful. Therefore, always wear gloves when applying it to prevent damaging your skin or hands. 

Furthermore, you should note that this sealer produces a rather strong, unpleasant smell. While this smell disappears quickly, make sure the space has adequate ventilation. 

Other than that, this marble sealer is effective, eco-friendly, bio-degradable, and non-toxic. For that reason, it’s safe to use even for food preparation areas like kitchen marble countertops.

Pros               

  • Ideal for outdoor and indoor surfaces 
  • Forms an invisible, durable barrier
  • Weather and UV-resistant 
  • Covers a large surface area 

Cons  

  • Unpleasant initial odor 

6. Tuff Duck Granite, Grout, and Marble Sealer 

Tuff Duck Granite, Grout, and Marble Sealer

Manufactured by Rockline Labs, this Tuck Duck sealer offers more protection than most sealers out there. That alone is enough to earn it a position on our list as the best sealer for Carrara marble.  

Besides, this sealer has so many incredible properties that you’ll love. To start with, this sealer’s formulation is non-acidic and features advanced water-based fluoropolymers.

Besides, this formula will not change the beautiful natural appearance of your surfaces. Not just marble surfaces, but other surfaces like concrete, slate, travertine, and limestone as well. 

 If the statement by the manufacturer is something to go by, it contains more active ingredients as compared to other brands. While this doesn’t guarantee more effectiveness, it’s certainly a benefit. 

This penetrative sealer comes in a 1-gallon bottle and it’s intended to cover about 800 sq. ft. as for durability, its protective strength lasts up to 3 years when used on external surfaces. However, when used on internal surfaces, it can last up to 5 years. 

Best of all, unlike some marble sealer models, this sealer requires one coat only, and your marble will be protected fully! That, plus the fact that it’s a water-based sealer, makes it extremely easy to apply. 

Afterward, this non-toxic sealer ensures that water doesn’t penetrate the marble surface. Not to forget that it offers protection against different types of stains, including oil- and water-based stains. 

However, you should note that this sealer is only ideal for porous and natural stones. If you use it on other stone types, they’ll repel it! Moreover, if the marble surface is wet, the product becomes rather thin. Therefore, make sure the surface is completely dry before application. 

Apart from that, the Tuff Duck sealer is such a great option for marble surfaces, especially when you want maximum protection. 

Pros

  • More active ingredients than other sealer brands 
  • Covers a large area (800 sq. ft.)
  • Ideal for exterior and interior surfaces 
  • Requires a single coat 

Cons 

  • Only works on porous and natural stone 
  • Produces a strong chemical smell after application 

7. TENAX Proseal Marble Sealer 

TENAX Proseal Marble Sealer

Choosing a marble sealer that will protect your surfaces and provide a great shine may not be a simple task, especially for beginners. Well, not anymore! Or at least, it will not be since there is this Proseal marble sealer from TENAX. 

Manufactured in Italy, this solvent-based sealer will rejuvenate your marble surfaces, and give them an incredibly glossy finish. Even better, you don’t have to limit its application on marble surfaces. It’s safe to use on almost every stone surface you can think of. Whether it’s a limestone, granite, terrazzo, or concrete agglomerate surface, this is the ideal option for you. It’s even considered the best marble sealer for bathroom walls and floors.

With 1 liter of this sealer, you can completely seal an area of about 200 – 300 sq. ft. So, imagine the surface you’ll be able to cover considering that this sealer comes in a 1-quart can! 

Before application, make sure you’ve cleaned the marble first. After that, you can spread the marble sealer uniformly on the surface with a cloth or sponge. Give it some time to settle and penetrate, and then wipe off the excess sealer to avoid stickiness. 

The drying time is about 10 to 15 minutes. However, for the water-resistance property to kick in, you’ve to give it at least 24 hours. By that time, your marble surface will have an attractive finish that will protect it from water stains and other damages. 

As if that’s not enough, this product is so effective that it guarantees to offer the surface lifelong protection. Once you buy this product, it may be the last time you’ll ever need a marble sealer! 

Get yourself this TANEX Proseal sealer and make your marble looking like it’s new again with a single coat!  

Pros 

  • Requires only 1 coat 
  • Dries in 10 to 15 minutes 
  • Enhanced water resistance 
  • Easy application 

Cons 

  • Produces a rather strong odor 
  • Cures in 24 hours 

8. DRY-TREAT Stain-proof Impregnating Marble Sealer 

DRY-TREAT Stain-proof Impregnating Marble Sealer

Being an ‘impregnating’ sealer, the formula of this marble sealer is stronger than average sealants. This also indicates that the product is specifically designed to deeply penetrate the marble surface. Thus creating a hard and long-lasting finish that’s ideal for floors, countertops, and other marble surfaces.   

One great thing about this impregnator is that it allows the marble surfaces to ‘breathe’. Thanks to the microscopic gaps in its finish. While these gaps don’t allow oil and water to seep through the surface, they’re large enough for vapor and air to escape. So, unlike other sealers, Stain-Proof Impregnator doesn’t lock in moisture. 

You’ll also love the fact that this heavy-duty does a permanent job. For that reason, you’ll not have to re-apply it after every 1 or 2 years. However, to seal the marble properly with this product, you should apply 2 to 3 coats, giving each coat 10 minutes to dry before you apply the next. 

Another unique thing about this sealer is that it comes in a 16-ounce white bottle. Therefore, you can easily distinguish it from similar sealers on the shelf. 

As you may have guessed, this sealer is a bit expensive. But this should not come as a surprise considering all the incredible features and benefits it offers, including life-long protection. Besides, it includes a 25-year warranty when one follows the manufacturer’s guidelines for care and application. Even so, we would recommend this high-end sealer for significant commercial and residential jobs because of the high-cost. 

Putting cost aside, this marble sealer will give your marble surfaces a stunning mirror finish. So, if you’d like your marble to shine, this is the perfect sealer for you. Moreover, you can use it for indoor or outdoor applications! 

Pros 

  • Offers life-long protection 
  • Ideal for outdoor and indoor applications 
  • Beautiful mirror finish
  • Fast drying time 

Cons 

  • Requires 3 coats 
  • A bit costly 

You might like to read: What’s the strongest aluminum epoxy?


How to Choose Marble Sealer Before Buying?

Marble is an attractive material that can be a great and decorative addition to any home. However, it requires special care because it’s vulnerable to weather elements, as well as wear and tear. So, if not cared for, marble will eventually lose its shine. This is where marble sealers come in! 

Even so, you must always remember that all marble sealer is not the same! Besides, it’s hard to find a product that is ideal for everyone. To make sure you’ve got the perfect sealer for you, keep the following factors in mind: 

Coverage 

As you may have noticed, sealers come in various strengths and sizes. For that reason, they tend to have different coverage ranging from 100 to 4,000 sq. ft. Therefore, before you choose a marble sealer, you must consider the area you want to cover.

a marble sealer with a coverage of 100 sq

If you’ve got a lot of surfaces, go with a product that offers more coverage. On the other hand, if you want to seal a small bathroom surface, a marble sealer with a coverage of 100 sq. ft. will get the job done. 

Safe to use 

A marble sealer with non-toxic or harsh ingredients will also scratch the surface and damage its looks. Also, this might expose you to toxic chemicals while applying the sealer. Therefore, go with a marble sealer that is free from harmful chemicals.

That way, you’ll safeguard your health and protect the marble surfaces. Such sealers are also ideal for use in areas that are intended for food preparation. 

Application type 

Sealers are available in ready-to-use tubs, spray-on bottles, or larger gallon-/ quart-size contains that involve sponge or rag application. So, choose the best application method for you. However, you must bear in mind that while ready-to-sea tubes are convenient, they’re not ideal for larger tasks.

In that case, gallon-size containers are the best option. You can also consider spray-on application since it provides an even, consistent sealant over the marble surface. 

Curing time 

Different sealers tend to have different curing times. For instance, some take up to 24 hours to cure fully, while others can take up to 72 hours. Whichever the case, you must check out the curing time of each sealer and avoid touching or walking on that surface before it has completely cured. 

Top Sealer Brands 

With so many brands in the market, it’s hard to choose only one as the best marble sealer brand. While we don’t encourage buyers to choose a marble sealer solely based on the brand, some are more reputable than others. Some of these brands include; 

1. TriNova 

TriNova marble sealer

Produced by Gold Eagle Company that was established in 1932, TriNova marble sealer is certainly one of the best brands out there. They have various products that provide sustained maintenance for different types of marbles. 

2. StoneTech 

StoneTech marble sealer

StoneTech is another great brand with a new, advanced formulation that is manufactured by Laticrete. Their marble sealers make the process of sealing marble easy and protect them against tough stains. So, if you want your marble to preserve its natural look, this is another great brand worth investing in. 

3. Tuff Duck 

Tuff Duck marble sealer

Having been in the industry for 10 years now, Tuff Duck is another good brand that is manufactured by Rocklinite Labs. The brand has many cost-effective professional-grade marble sealers that you can choose from. 

4. Granite Gold 

Granite Gold sealer

Having put 3 generations of family expertise into various stone care products, Granite Gold Inc is the other top brand in the market today. Some of their stone care products include; sealers, granite cleaners, polish, and many others. Their marble sealer makes it protects marble surfaces from stains, making them easy to clean. 

5. Miracle Sealants 

Miracle Sealants

Since its establishment in 1983, Miracle Sealants Company has been manufacturing premium-quality pro-grade care and installation products for natural stone, grout, porcelain/ ceramic tile, masonry, and brick surfaces. 


Frequently Answer Questions 

How often should one seal marble surfaces? 

That will depend on the marble sealer you’re using. Some sealers require re-application after every 1-3 years, while others can last for up to 20 years or more. 

Can you use marble sealers on other surfaces? 

Yes! Most marble sealers usually work on other surfaces like granite, slate, terrazzo, ceramic tiles, limestone, Travertine, and much more. So, if you’re planning to use the marble sealer on multiple surfaces, ensure it’s approved to work on those surfaces. 

How do you know if your marble surface needs re-sealing? 

If the marble surfaces start to become dull or discolored, this can be a good sign that it wants to be re-sealed. However, you don’t have to wait until you see noticeable changes to occur so that you can reseal it. 
Instead, we recommend that you occasionally test the marble’s water resistance. To do this, you can squeeze a few droplets of lemon juice on the marble surface. if the marble surfaces start to darken, wipe the surface dry and apply your sealer right away. 

What will happen if I don’t seal my marble surfaces? 

Not sealing your marble surfaces leaves them exposed to household hazards like oil- and water-based stains. Liquid and stains will easily penetrate the surface, eventually damaging its appearance. 

Does marble sealer make marble surfaces shine? 

No, marble sealers don’t make marble shine! Instead, high-quality marble sealers help marble remain shiny for a very long time. These sealers penetrate the marble through the small pores and then hardens to form a water-resistant layer. This layer repels oil-and water-based stains, thus protecting marble from moisture damage. 

Final Words 

Marble surfaces are found in different parts of a home. You can find them in kitchen counters, bathtub surrounds, floors, tabletops, sculptures, and so on! Since they’re chosen for the beautiful and elegant look, sealing them will help them maintain their finish for a very long time. 

Having gone through this article, we hope you’ve come across the best sealer for marble that suits your sealing needs. Above all, each of these sealers will safeguard your marble surfaces for many years to come.  

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