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Stone Impregnator Sealer – CoverSeal Premium with Maximum Stain Resistance


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Delivery: Typically 2 to 3 business days
Location : Interior/Exterior
Task : Oil/Stain Resistance
Application : Roller, Bursh, Pump-Spray
Surface : Natural Stone Concrete
Base : Waterbased Fluorochem
Drytime : 1-4 hours
Coverage : 250-900 sq.ft/gal
Finish : Penetrating Clear

Coverseal Premium Impregnator Sealer With Maximum Stain Resistance Protection

Protect Your Stone with the Best Impregnator Sealer Available Today.

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What Is A Penetrating Sealer?

An impregnator sealer is one that penetrates into the surface and fills the voids, the capillaries in the concrete or stone.  Rather than leaving a film on the surface, a penetrating sealer soaks in, reacts and repels any oil or stains or water that wants to get into the surface.

CoverSeal Premium was formulated specifically to provide heavy-duty surface protection that:

  1. Makes the surface much easier to clean, and
  2. Reduces the frequency of those cleanings.

Essentially, CoverSeal Premium was designed to give you a fighting chance at keeping those surfaces clean and attractive, with minimal labor and maintenance costs.

What About CoverSeal Premium Penetrating Sealer Produces Better Real-World Results?

CoverSeal Premium is highly differentiated from competing professional-grade products AND store-bought brands.

CoverTec Products formulated Premium to provide customers stain resistance well beyond what regular sealers offer. More specifically, it has a very high level of active solids in the formulation… somewhere around 40% more than what you find in a typical a D.I.Y. or off-the-shelf product.

This level of active solids, combined with a special combination of organic, environmentally friendly co-solvents allows it to wet the surface thoroughly and seal it much more effective than a typical DIY product. This is how CoverSeal Premium easily repels heavy oil and stains from the surface, while lasting much longer than competing sealers.


CoverSeal PREMIUM is easily applied using a roller, mop, brush or lamb’s wool applicator.


Porous surfaces: 250 to 300ft²/gallon per coat.

Dense surfaces:  600 to 900 ft²/gallon per coat.

Coverage will vary depending on surface porosity.

Shelf Life: 

18 months when stored at 77°F (25°C) or less in a dry and shaded area.



  • Maximum Stain Protection
  • Highly water repellent
  • Repels Food Based Oils and Stains
  • Resists Urine and Pet Stains
  • Mold and Mildew Resistant
  • Holds back Efflorescence
  • No Effect on Appearance
  • Water Based, Zero Odor
  • Non-Yellowing UV Resistant
  • Breathable Sealer
  • Reduced Dirt Pick Up and Smog
  • Reduces Freeze Thaw Attack
  • Resists Deicing Salts
  • Easy to Apply
  • Interior and Exterior use

Color:  Clear. No effect on appearance.

Typical Uses

  • Stone Susceptible to Staining or Discoloration
  • Porous Grout
  • Honed or Textured Marble
  • Travertine
  • Limestone
  • Saltillo
  • Slate and Bluestone
  • Sandstone
  • Unglazed Tile
  •  Concrete
  • Patios and BBQ areas
  • Counter Tops
  • Interior or Exterior

Most of us think of our stone as something solid and everlasting, no harm will come to it, right? But unfortunately, stone is a natural material and is vulnerable to the elements. Whether you have a beautiful patio in your garden, a decorative stone wall inside or outside your home, it needs protection. And the best way to protect your stone is to use the right impregnator sealer. That’s right, sealer! In this post, we’ll explain why this is the best protection for your stone and show you how to use it. So, if you’re looking for a way to protect your lovely stone surfaces, keep reading and we’ll show you how to do it with the best impregnator sealer.

Quick Answer to Key Question

Stone impregnator sealer is a type of penetrating sealer intended for use on porous surfaces such as limestone, travertine, marble, and other types of natural stone. It helps to fill the pores in stone, reducing staining and making the surface more resistant to water and oil-based spills.

What is a Stone Impregnator Sealer?

A stone impregnator sealer is a product designed for use on natural stone, tile, or other porous substrates. Its primary purpose is to provide an invisible seal over the surface, preventing stains from soaking into the material below. This sealant also helps reduce wear and tear; a sealed surface will repel dirt and dust more easily, prolonging the life of your stone.

At first glance, the idea of coating a naturally absorbent material with a sealer may seem counterintuitive, but there are several benefits to consider. Doing so helps increase resistance to water penetration and mildew growth, protects against staining by oil-based liquids, and makes it easier to clean spills in general. By protecting against soap scum buildup, you can save yourself time when it comes to annual cleaning.

Yet some argue that using a sealer can lead to problems if the sealer is not breathable. Additionally (though not commonly meant as a criticism), these products must be reapplied periodically to maintain their protective properties. If they are forgotten or ignored, those same materials will eventually become susceptible to the same problems they seek to prevent.

When it comes down to it, the decision whether or not to use an impregnator sealer will come down largely to personal preference. However, it still pays to investigate your options further — understanding all the features a given product offers could bring much more value than just cosmetic appeal alone. With that in mind, let’s look at some of the features of a stone impregnator sealer more closely.

Features of a Stone Impregnator Sealer

When it comes to ensuring the longevity of your stone surfaces, an impregnator sealer is essential. An effective impregnator sealer not only repels water and other liquids, but also protects against dirt, staining and other damage caused by everyday wear and tear. In order to develop an understanding of the essential features of a stone impregnator sealer, consider the following points:

  1. Breathability – A stone impregnator sealer should be designed to allow moisture vapor to escape while simultaneously preventing liquid from entering or staining the surface. This ensures that any trapped moisture in the stone can reduce over time, avoiding discoloration or structural damage due to prolonged saturation.
  2. Durability – A quality stone impregnator sealer should have a long-lasting lifetime guarantee. It should also provide reliable protection against fading caused by UV rays, staining from ingredients in cooking oils and common household cleaners. Topical film forming sealers provide the best protect against etching.
  3. Easy Maintenance – A good impregnator sealer should make regular cleaning easier and more effective than when using soap solution alone. This helps maximize the protective effects for many years with minimal effort required on the part of the user.

Despite the obvious advantages of using a quality stone impregnator sealer, some would argue that this type of product is unnecessary and merely creates an additional layer of expense for no real benefit. However, for those looking for lasting protection that will save money in the long run with easy maintenance options, there is enough evidence to suggest that investing in a quality stone impregnator sealer is worthwhile.

By selecting a stone impregnator sealer with these key features in mind, you can ensure your stones remain protected from dirt and liquid accumulation as well as long-term damage such as fading. In the next section we’ll examine what exactly a stone impregnator sealer does to help protect your surfaces.

What Does a Stone Impregnator Sealer Do?

Protecting the natural stone surfaces in your home or place of business is an important part of long-term maintenance. With the right sealer, you can give your natural stone an extra layer of protection against dirt, staining and other damages that could occur over time. A stone impregnator sealer does exactly that.

Impregnator sealer works by protecting the surface from liquids and dirt, allowing them to simply sit on top instead of fully penetrating and permanently damaging the stone. In addition, it prevents staining from oil, grease and food pigments by preventing them from spreading throughout porous materials. It also provides a smoother surface which makes cleaning easier.

The primary purpose of impregnator sealer is to preserve and extend the life of a stone’s surface, however there are drawbacks to using certain types of impregnators. Solvent based impregnator sealers may affect the appearance of certain stones, causing a light sheen or color change. Over time this effect may fade away but for those who value the original look and feel of unaltered walls or floors, this can be a turn off.  Sheen issues are not normally a problem when using water based penetrating sealers . Additionally, some solvent based sealers contain chemicals that need to be taken into consideration if looking for eco-friendly options. Weighing out all these factors should be carefully considered before applying any product.

With that being said, stone impregnator sealers can provide great defense against dirt and liquid damages and with proper application can help your stone surfaces last for years to come. The next section will discuss types of stones that benefit most from impregnator sealers.

  • Using a stone impregnator sealer has been reported to reduce the rate of water absorption by up to 95%, significantly resisting damage from water, salt, and other elements.
  • According to tests conducted by the U.S. Geological Survey, stone impregnator sealers can provide up to 1,400 hours of salt resistance, more than double the resistance when compared with a control sample not treated with a sealer.
  • Stone impregnator sealers can help to extend the life of many stones and minimize staining by providing a barrier that prevents liquid or oil based materials from penetrating into the stone surface. 

Types of Stone that Benefit from Impregnator Sealer

When it comes to stone flooring, there are multiple types that can benefit from the additional protection that an impregnator sealer offers. Natural stones such as travertine, limestone and marble should especially consider using an impregnator sealer in order to better protect them against damaging agents, like dirt, grease and staining liquids. Natural stones are more porous than other types of flooring, like ceramic tiles, which means they require a stronger sealant in order to reduce their absorption rate. Likewise, engineered stones such as quartz will also benefit from using an impregnator sealer. The sealant adds extra protection, while also making the surfaces easier to keep clean.

Though some may debate the usefulness of an impregnator sealer on certain materials, research has shown that it’s still worth the added protection for most stones and other materials. While non-porous engineered stones may not need the same degree of protection as natural stones, applying an impregnator sealer will help increase their resistance to scraping and abrasion over time. All in all, it’s best practice to apply an impregnator sealer regardless of whether a surface is made up of natural or engineering stone.

This section has highlighted why both natural and engineered stone surfaces can benefit from being treated with an impregnator sealer. In the next section, we’ll take a closer look at what surfaces this type of sealant can protect.

What Surfaces Can Impregnator Sealer Protect?

Impregnator sealers are a fantastic way to protect your stone surfaces from dirt, grime, and spills. These sealers penetrate deep into the stone’s pores and leave an invisible protective layer that is both breathable and water-resistant. The most common types of impregnator sealers act as a barrier between the surface of your stone and any liquids or soils that may come into contact with it. These sealers work on natural stones such as granite, marble, travertine, limestone, and slate; they will not however work on manufactured stones such as quartz or concrete.

Impregnator sealers have many advantages over other methods of surface protection; they are easy to apply, they help prevent staining caused by spills, they enhance natural color and provide a high level of protection against water-based damage due to rain or accidental flooding. Despite these benefits, impregnator sealers do have some drawbacks as well. Not all brands offer the same level of protection, so be sure to read labels carefully before purchasing a product for your stone surfaces. Additionally, some impregnator sealers can leave behind a visible residue when applied in large amounts or over long periods of time.

Impregnator Sealer is one of the best choices for protecting your stone surfaces from water, oil, wear and environmental conditions. By providing superior protection without affecting the natural characteristics of your stone, Impregnator Sealer offers one of the best solutions available for preserving your most treasured surfaces. Now let’s look at how Impregnator Sealer provides Water, Oil and Wear Resistances in the next section! 

Water, Oil, and Wear Resistance

When choosing the best impregnator sealer for your stone, you need to consider the water, oil, and wear resistance of the product. Sealers protect stones from all three of these elements in different ways.

When talking about water resistance, an effective impregnator will repel water from penetrating into your stone surface and causing any damage. Without it, the stone can become stained and even eroded over time. Quality impregnators will also stand up to any water-based cleaning solutions that are used frequently, like soaps and detergents.

Oil resistance is also important when selecting an impregnator sealer. Some oils can penetrate a stone’s surface more easily than others, so it’s important to get a sealer that prevents oil from penetrating at all. Good products will be able to provide protection against food oils, automotive fluids, and even petroleum-based products.

Finally, there’s wear resistance. High-quality sealers should be able to provide many years of reliable protection against scratches and abrasions that can occur due to regular use. It’s always important to select a sealer that not only provides great protection initially but also keeps providing reliable protection over time as well.

Overall, when looking for the best impregnator sealer for your stone, make sure you choose one with excellent water, oil, and wear resistance. While there may be some arguments for using less expensive or lower quality sealers, remember that the long-term costs associated with repairs or replacements due to inadequate protection could take away any cost savings you experienced initially. Now let’s move onto discussing environmentally friendly impregnator sealers… 

Environmentally Friendly Impregnator Sealer

When considering impregnator sealers for stone surfaces, it is important to consider environmentally friendly options as well. Utilizing a product that has minimal impact on the environment while still providing adequate protection and stain resistance is often favored. The manufacturing of impregnator sealers today often offers eco-friendly alternatives that are non-toxic and biodegradable.

The benefit of using impregnator sealers that contain natural ingredients and are labeled for environmental safety is beneficial not only to human users and their health but also to our planet. Natural ingredients can leave negligible trace amounts on the treated surface once dried, thus reducing any residue or concern over harm to humans and the environment.

Though, there are both sides of this argument. Some people view environmental friendliness as counterproductive when it comes to choosing an effective impregnator sealer. It is suggested by some manufacturers that when choosing a lower VOC product you may sacrifice performance in exchange for labeling a product as “green”. Despite these claims, most lab tests have shown that synthetic resin formulas perform similarly, if not better than natural base formulas in terms of durability, coverage rate, stain resistance, water repellency, etc., while still being environmentally safe.

Since the environment is a growing concern among many industries, utilizing an effective and environmentally friendly impregnator sealer has become easier than ever. Now transitioning into the next section will note the importance of understanding natural and non-toxic ingredients when choosing an eco-friendly impregnator sealer. 

Natural and Non-Toxic Ingredients

When looking for a sealer for your stone, it is important to consider the ingredients and make sure that they are safe for you, your family, and the environment. Many of the products available on the market today claim to provide protection from water and spills whilst keeping the natural color and feel intact. However, some of these contain harsh chemical solvents, some of which are toxic or known carcinogens.

In order to avoid these potentially hazardous materials, it is best to look for a water based and non-toxic impregnator sealers with very low odor and are USDA and FDA-compliant.They provide a protective coating to stone surfaces, allowing spills to bead off while maintaining the natural look and feel.

Another benefit of water based ingredients is that they don’t emit hazardous vapors and chemicals that could damage delicate internal components such as air filters in air conditioners or ventilation systems. By choosing an environmentally friendly impregnator sealer with water based ingredients, you can ensure that your beloved stone surfaces are safe inside and out.

Knowing how to protect your stone surface from water damage best and staining is essential to preserving its beauty for years to come. To ensure that your stone remains protected from water damage, the next section discusses applying an impregnator sealer correctly. 

Top Highlights

When searching for an impregnator sealer for your stone surface, it is important to consider which ingredients it contains. Products on the market may contain hazardous chemical solvents which are toxic and known carcinogens. To avoid these materials, look for low-odor and EPA-compliant sealers with environmentally friendly ingredients like beeswax and carnauba wax. These natural ingredients provide a protective layer to stones while remaining non-toxic and sustainable. Additionally, they do not emit hazardous gases or chemicals which could cause damage to delicate internal components. Knowing how to apply the sealer correctly is also essential to preserving its beauty over time.

How to Apply Impregnator Sealer

Applying an impregnator sealer is a simple and straightforward task with the use of a few basic tools. Depending on the size of your stone surface, you can choose to apply it using either a roller or a low-pressure pump-up garden sprayer or paint sprayer. The larger area to be covered would make it more sensible to opt for the sprayer, whereas smaller areas can be effectively treated using a roller. It is important not to atomize the sealer when spraying.

When preparing the area for application, make sure that it is clean and dry. Also ensure that it is not in direct sunlight during application. Thoroughly mix the sealer prior to application, and then pour the necessary amount into either your sprayer or roller pan.

To begin applying, either roll or spray the sealer onto the stone surface beginning at one corner of the space you wish to protect. Apply one coat only and follow up by distributing evenly to ensure full coverage. Make sure that all surfaces have been adequately sprayed or rolled, paying special attention to any corners or crevices that may exist in your particular stone surface. Allow the sealer to penetrate into the stone’s layers before applying a second coat if necessary.

Once you have completed your application process, inspect carefully for any uneven areas or spots where the sealer may need further attention. It is important not to overlook any parts of your surface treatment so as not get stuck later with problematic areas of potential moisture damage or water penetration to surfaces otherwise protected by your sealant work.

When finished, allow sufficient time for drying and curing – typically between 24-48 hours – before exposing treated surfaces to water or other sources of moisture contact. With careful consideration given throughout this process, impregnator sealers can serve as an effective tool when protecting against unwanted wear and tear due to weather elements on both indoor and outdoor stone surfaces alike.

Having taken all necessary steps in understanding how best to prepare one’s surface prior to application as well as having chosen between rollers and sprayers for complete coverage, we will now explore several key conclusions about when and why an impregnator sealer should be used in our next section…. 


When it comes to protecting your stone surfaces, impregnator sealers are a great choice. These sealers penetrate into the stone surface, forming an invisible barrier that prevents water, dirt and other damaging substances from penetrating deeper into the stone’s pores. This level of protection is beneficial in preventing staining and discoloration and maintaining the natural look and feel of your stone surfaces. If you need to protect against etching, a topical sealer is recommended.

However, there are certain things to consider when choosing the best impregnator sealer for your needs. For example, some sealers may be incompatible with a specific type of stone surface. Doing your research before selecting one for any project is important. Additionally, it is important to regularly check the condition of the sealer to determine if it needs to be reapplied or replaced entirely.

Overall, using an impregnator sealer on your stone surfaces is one of the most effective and affordable ways to protect them from external damage. With proper installation and maintenance, these sealers will help ensure the long-term durability and beauty of your stone surfaces for many years to come. 

Answers to Commonly Asked Questions

What kind of surfaces can benefit from a stone impregnator sealer?

Stone impregnator sealers are ideal for a range of surfaces, including natural stone, concrete, tile, grout, terrazzo and masonry. The sealer penetrates these porous surfaces to protect them from dirt, grease and stains that can build up over time. It also helps reduce freeze-thaw damage and the growth of mold and mildew. Additionally, it repels liquids, helping to protect your stone from water damage and staining. With the proper application of this type of sealer, you can help safeguard your stone surfaces for years to come! If you need to protect against etching a topical sealer is recommended.

Are there any drawbacks to using stone impregnator sealer?

Yes, there are some drawbacks to using stone impregnator sealer. The most notable drawback is that once applied, it’s difficult to remove the sealer without causing damage to the stone. This can be especially problematic when it comes to natural stone where the sealer may not fully penetrate the pores of the surface, resulting in a patchy appearance or discoloration. Additionally, some types of sealers could potentially react with certain types of stone, causing staining or other discolorations. Finally, if not applied properly, or if it is over-applied, it is possible to leave a hazy residue on the stone which cannot be removed without specialized equipment or professional help.

How often should a stone impregnator sealer be reapplied?

When it comes to reapplying a stone impregnator sealer, there is no one-size-fits-all answer. Ultimately, the frequency of reapplication will depend on the type of stone being sealed, the level of traffic the area receives, and even the weather conditions in your area.

For example, a simple sandstone or slate may only require reapplication every two to three years in general outdoor applications. Whereas more porous stones such as limestone or travertine might need more frequent sealing – once yearly or eighteen months, depending on its exposure to environmental changes. Similarly, if a stone surface experiences high levels of foot traffic or exposure to harsh chemicals, it may need sealer considerably more often than an area used less often.

Ultimately, regular application of an appropriate impregnation sealer can help keep your stone looking its best for years to come.

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