Best sealant for marble

Ultimate Guide to Marble Sealer

Correctly applied marble sealer acts as an effective defensive shield against foreign substances from staining your marble, however, if marble sealer is just blindly applied to marble floors or countertops it can counterproductive. Each stoneshould be considered carefully prior to applying a natural stone sealer to determine if the sealer application actually benefits the stone. This guide will tell you all you need to know about natural stone sealers, and when and where to use them!


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What is a Marble Sealer

Marble sealer is a surface treatment applied to the marble to clog the pours of the marble surface and prevent foreign substances from penetrating the surface thus preventing stains.

?Marble sealers are impregnator sealers that are made up of a liquid based solvent (typically water based) and a solid resin. The solvent is the carrier that penetrates the pours in the stone surface and then evaporates leaving behind the solid resin that plugs the marble's pours.

Impregnator sealers are below the surface sealers, and once they have been applied and absorbed by the stone they do an excellent job at preventing stains. However, this is the only function of the marble sealer, and will not effect the surface appearance of stone. For example, the sealer will not polish the stone, or shine the surface, or protect the shine of the surface. The marble sealer will not protect the stone from common wear, and will not protect against acidic substances that can cause etching.

Understanding the functionand limitations of the marble sealer is very important to determine when and where the application of a marble sealer is appropriate.

How the Marble Sealer Prevents Stains

?Contrary to popular belief, marble is not a very porous stone, however, if given enough time liquids will penetrate the pours of the stone. Once the liquid penetrates the stone a stain can occur following the evaporation of the liquid.

For example, when you spill coffee on your marble countertop, if given ampletime, the coffee will penetrate the marble surface. If the coffee has had time to penetrate the stone prior to wiping it up, then it will be to late. The liquid will already be inside the stone, and once it has time to evaporate it will leave behind a stain.

In short, if liquids are given the ability to penetrate the stone's pours then stains can occur, so the natural stone sealer is designed to prevent this. The carrier part of the sealer is designed to impregnate (thus called impregnator sealer) the stones pours and leave behind the resins that physically blocks foreign liquids from penetrating the stone thus preventing stains.

Marble Sealers do a great job at preventing stains, but it is important to note that no sealer is perfect and if liquids are given enough time they can still penetrate and leave stains in the stone. So when you apply sealer its important not to forget about cleaning and caring for your marble. The sealer is not perfect, and the stone should still be cleaned after spills or after use.

?When and Where to use Marble Sealers

Since you are reading this article, I am going to guess and say you agree that marble is the best looking natural stone you can add to your home. Marble is a product of nature and thus should be altered from its original form as little as possible; this way you guarantee the preservation of its beauty. Therefore, marble sealers should only be used when its use benefits the user, and also the stone itself. We have two simple rules to follow when determining the use of marble sealers:

1. Will the stone absorb the sealer?

2. Given the marble's location and use, is there a probability of staining?

Will the Stone Absorb the Sealer?

The sealer carrier works by physically being absorbed by the stone. But what if the stone will not absorb the sealer? Unlike what many people say, some marble will absorb very little liquids with absorption rates of 0.2 or less, and if a stone cannot absorb a sealer it cannot absorb liquids that can create stains. Thus in this case, the sealer is useless and will most likely cause more harm than good. If the sealer is applied to a marble surface that will not absorb it, then a lot of times the sealer will not be completely wiped away and will ultimatelyevaporate and leave behind the solid resin creating a hazy look that ruins some of the marble's shine.

?"In short, If the stone will not absorb the sealer, then it will not absorb stains thus eliminating the need for a sealer."


?In short, If the stone will not absorb the sealer, then it will not absorb stains thus eliminating the need for a sealer.

So how do you know if your stone can benefit from a marble sealer? Try the water test, it will tell you if your stone will absorb liquids, thus benefiting from a sealer.

What factors influence the Stone's Absorption?

Each marble stone is unique, it has unique color, hardness, and porosity. Some stones will naturally soak up liquids, while others may take hours to absorb a few drops.

The marble's surface finish will also effect the absorption of the stone. Polished marble will absorb much less than natural unfinished stone because in order to polish marble a lot of the pours on the surface are removed during the polishing process.

Honed marble will also absorb less than natural unfinished stone. Like polished marble, the surface finish removes pours on the surface thus preventing liquids from penetrating the surface.

Do to the uniqueness of each stone, and the differences in surface finishes we recommend you run the water test to determine if your stone will even absorb liquids, this way you will truly know if your stone will benefit from a natural stone sealer.

Is there a Probability of Staining?

marble countertop sealer

A Marble Sealer will help prevent this from becoming a stain!

The fact that your marble absorbs liquids is not enough to require a marble sealer. It is also important to know if there is an actual probability of staining your marble surface. For example, shower marble rarely comes into contact with liquids that may cause stains, unless your drinking your morning's coffee in the shower. So a shower's marble for this example does not need to be sealed (more on this later).

On the contrary, a kitchen countertop will come into contact with liquids that can stain on a daily basis so if that stone is absorbing liquids it will benefit greatly from a marble sealer.

In most cases marble has the possibility of encountering liquids that can cause stains, but it is beneficial to consider this prior to applying marble sealer.

Pro Tip:

In most cases marble has the possibility of encountering liquids that can cause stains, but it is beneficial to consider this prior to applying marble sealer.

Application Recommendations

In general (assuming the marble is absorbing liquids), here are the recommended applications of marble sealer:

Kitchen Countertop

Kitchen Countertops encounter staining agents on a daily basis and can greatly benefit from a marble sealer.

Bathroom countertop

Bathroom Countertops encounter staining agents like cosmetics and lotions on a daily basis and can benefit from a marble sealer.

Marble Floors

?In most cases marble floors encounter staining agentson a daily basis and can benefit from a marble sealer.

Marble Showers

carrara marble tile sealer

Carrara Marble

In most cases marble showers do not need marble sealers. They rarely come in contact with liquids that can stain, and if they do, in most cases water will be running and will just wash the potential stain down the drain. Not only is unnecessary to seal marble in a shower, it is possibly counterproductive. Sometimes if sealers are applied to marble in the shower, water can get trapped under the sealer and damage the stone.

There is one exception to this rule. Carrara marble (white marble) in your shower should be sealed. Carrara marble contains iron or metallic minerals inside the stone, and in a shower environment the stone will repeatedlycycle water in and out of the stone. Over time, this cyclical nature will cause the water to rust the metallic deposit inside the stone turning the stone a yellowish color. Therefore, we recommend using a sealer on Carrara ?marble to prevent this problem.

Check out this awesome video that goes through a lot of these principles about marble sealers thanks to Dan DiTomaso at Stone Master Inc.

If this article did not answer all your questions about marble sealers, please comment below. We will respond personally!

If this article was helpful please share below so others can benefit as well!

best sealant for marble
Best Marble Sealer Reviews - February 2020

Marble SealerAre you ready to make an informed decision and keep your marble looking as good as new? We are here to make your choice easier by reviewing five of the best marble sealers on the market. Using marble in your home or office is beneficial for your health as a result of the natural elements that this timeless piece of stone is composed of, not to mention the aesthetically pleasing ambiance created by investing in it. The utilization of marble provides a professional, high-end, luxurious feel to any feature it is a part of. Can you picture that pristine area in your home where friends and family will want to gather?

A hefty price is usually attached to the installation of marble. As such, using sealers as a preventative means with regard to damage enables you to fully enjoy the magnificence of your investment when you follow the correct care guides recommended in the maintenance and upkeep of it.

Why Do You Need to Use a Marble Sealer?

Marble is a natural stone composed of porous channels that can be damaged when exposed to elements such as water and oil. Treating marble with a sealer is beneficial as it prevents unwanted problems presenting itself like mold, mildew or bacterial invasion resulting in irrevocable damage to such natural beauty.

What to Consider before Purchasing Marble Sealer?

It is critical to take the location of the marble surface you intend on sealing into consideration before purchasing a sealer. Interior and exterior marble surfaces are exposed to varying elements that cause wear and tear over time. The expected wear should also be considered. Following the correct maintenance processes with regard to caring for your marble ensures that it retains its value and keeps it looking pristine in the areas where you intend on featuring it in your home or office.

Types of Marble Sealers

Penetrating Sealer

Penetrating sealers fill the channels found between the natural stone. Their composition makes them long lasting and do change the external appearance of the marble surface.

Topical Sealers

These sealers are applied to the surface of the marble and form a barrier on that protects the surface of it. Providing protection from stains, scratches and corrosion to the surface of the marble.

Does Your Marble Surface Need to Be Sealed?

A simple water droplet test will help to determine if your marble surface needs sealing. Sprinkle a little water over the area and see whether or not the water penetrates into the surface. If it penetrates quickly, its probably time to reapply sealer. If the droplets penetrate slowly or not at all, reapplication is not needed.

You can also test to see if an oil stain will enter marble. Dab paint thinner onto the marble (preferably an area not visible to the eye) and leave it for 5-10 minutes. Remove it thereafter and check to see if the marble discolors. If it goes darker compared to the marble around it, sealing is recommended.

In this day and age we are spoilt for choice regarding just about any product on the market. Our top five marble sealer picks come highly rated and caters to the needs of the professional and the aspiring do it yourself handyman. Here is our pick to make your purchase choice easier.

StoneTech BulletProof Sealer

A water-based penetrating sealer, StoneTech BulletProof Sealer, boasts an extra strength bonding formulation.

TheStoneTech BulletProof Sealeris water-based penetrating sealer with advanced penetrating microbond protection. This sealer provides maximum protection to the marble surfaces when used. Its unique, extra strength stain preventing formulation makes it resistant to the toughest liquids and gases. Its formulation bonds with the surfaces it comes into contact with ensuring it prevents damage caused by mold, mildew and water. It also makes cleaning marble surfaces easier as it preserves its natural look.

Key Features

  • Water-based penetrating sealer
  • Resistant to liquid and gas damage
  • Makes surfaces easier to clean
  • Preserves the natural look of marble surfaces


  • Available in a variety of sizes
  • Does not change the natural appearance of marble


  • Price
  • Protects surfaces for up to 5 years

Tuff Duck Granite, Grout and Marble Sealer

Tuff Duck Sealer is formulated for multiple means of application.

This extra strength formulation inTuff Duck Granite, Grout and Marble Sealerboasts twice the active ingredient as its competitors when protecting marble from elements such as water and oil based staining. Compatible with a multitude of natural stone this sealer is easily sprayed onto the surfaces that require sealing. It seals and protects granite surfaces without altering the natural appearance of the surface.

Key Features

  • Non-acidic formulation
  • Suitable for use on interior and exterior surfaces
  • Does not change the natural appearance of surfaces
  • Ensures proper protection after one coat


  • For use on multiple surfaces
  • Price


  • Protects interior surfaces for up to 5 years and exterior surfaces for up to 3 years
  • Surfaces need to be dust free for effective application

Black Diamond Color Enhancer Sealer

A color rejuvenating sealer best known as Black Diamond Color Enhancer Sealer.

Black Diamond Color Enhancer Sealeris best known for its ability to rejuvenate and darken sealed surfaces. This formulation is perfect for marble that requires resealing after extended periods of neglect. Providing protection from water and oil based elements in addition to allowing the transmission of moisture vapour. This product states specifically to test an area before complete application due to its color enhancing properties. Suitable for both interior and exterior use this sealer is easy to apply and is long-lasting.

Key Features

  • Protects from water and oil-based stains
  • Suitable for interior and exterior use
  • Allows moisture vapor transmission
  • Makes marble surfaces easier to clean


  • Rejuvenates neglected marble surfaces
  • Long-lasting


  • Price
  • Changes the natural appearance of surfaces sealed

Miracle Sealants 511 QT SG 511 Impregnator Penetrating Sealer

Miracle Sealants 511 QT SG 511 Impregnator Penetrating Sealer is the perfect choice for use on natural stones like marble.

TheMiracle Sealants 511 QT SG 511 Impregnator Penetrating Sealeris designed to provide protection to medium to dense porous substances making it perfect for use on marble. This sealer forms an invisible barrier on the surface of the marble as it penetrates the porous channels of this natural stone protecting it from water and oil based elements and staining. When using this sealer, surfaces are harder and less slippery making it ideal to use on surfaces that are prone to heavy foot traffic.

Key Features

  • Suitable for use on interior and exterior surfaces
  • Safe to use on food surfaces
  • Ultraviolet transparent
  • Prevents water and oil-based stains


  • Available in a variety of sizes
  • Suitable for heavy foot traffic when applied to floors


  • Price
  • Reapplication is required after expected wear

Marblelife Stone Sealer

Specially formulated Marblelife Stone Sealer is your one stop for sealing marble surfaces!

TheMarblelife Stone Sealerris specially formulated to protect and seal marble surfaces from wear and tear resulting from exposure to elements such as water and oil spoiling. This safe and eco-friendly product is perfect for use in homes and office areas where it is likely to come into contact with food produce. Application is easy enough to complete yourself, so no need to hire a professional and its low odor makes for stress free application. This sealer will not affect the appearance and texture of the surfaces that it is applied to and makes cleaning a breeze. Additionally this sealer allows for the natural breathability of marble stone even after application extending the lifespan of your surfaces.

Key Features

  • Safe for use on surfaces that come into contact with food
  • Makes cleaning easy
  • Extends the lifespan of marble surfaces
  • Easy to apply


  • Eco-friendly
  • No harsh odo


  • Recommended for residential use only
  • Reapplication required every 1-2 years


Sealing your marble enables you to benefit from its beauty and magnificence for a lifetime if you maintain it. The installation of marble in your home or office does not come cheap so rather than having to rip out a natural beauty as a result of neglect, you can retain its value by ensuring your take care of it. You have invested time and money into turning your office or home into lively and uplifting spaces. In the case of marble a little extra effort goes a long way.

Author: Lawrence

Lawrence is our mysterious chief in house writer. Is he a famous novelist? Is he a famous journalist? We dont know. All we know is that he is Lawrence.

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3. Excellent uv resistance and water resistance, widely used in waterproof and weather resistance adhesive sealing construction. 2. Engineers: Engineers with 15 years experience help you pick out the correct silicone sealant for certain project and material. Main products are structural silicone sealant, stone silicone sealant, weathering silicone sealant, two-component silicone sealant and other products.

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About product and suppliers:
            747 sealant for marble tiles products are offered for sale by suppliers on, of which adhesives & sealants accounts for 44%, other waterproofing materials accounts for 1%. 

A wide variety of sealant for marble tiles options are available to you, 

There are 747 suppliers who sells sealant for marble tiles on, mainly located in Asia. The top countries of suppliers are India, China, and Taiwan, China, from which the percentage of sealant for marble tiles supply is 1%, 97%, and 1% respectively. 

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