Best Concrete Waterproofing Sealer 2022 – Reviews & Buying Guide

We spend so much time crafting the perfect designs for our indoor and outdoor spaces. These arrangements need to be appealing and durable enough to stand the test of time. One way to ensure such high durability while maintaining equally captivating elegance is to use concrete for building those designs.

However, the maintenance of concrete includes some crucial parts such as sealing. Doing so keeps the porous surface safe from all potential damages including staining, corrosion and more.

For this reason, you need to use nothing less than the best concrete waterproofing sealer to get remarkable results!

Now, we’re here with an impressive list. Let us see how these sealers really help concrete and which one of them turns out to be the most ideal solution for your home! 



Editor's Rating


5 GAL Armor AR350 Concrete Sealer


Siloxa-Tek 8500 - Waterproof Concrete Sealer


Liquid Rubber Waterproof Sealant


Rain Guard CR-0360 Micro-Seal Concentrate Sealer


MasonryDefender Concrete Sealer


Types Of Concrete Sealers

Types Of Concrete Sealers

You may often wonder – what is the top quality waterproofing for concrete? There are many types and each has different properties. Thus, the answer will vary according to your preferences and the requirements of your surface.

However, before deciding on that, you have to learn about the various types first, right? This segment will present the type of sealer to you.

Siloxane Sealer

You must have heard of siloxane while searching for waterproofing sealers since it is a very common ingredient in such products. You can find them available at very economical price points which makes these sealers a great solution for those on a tight budget.

It is usually transparent and therefore maintains the natural look of your concrete surface. Its water-repellent feature can build a durable barrier protecting the area from liquid absorption and moisture.

Penetrating Sealer

As the category name suggests, penetrating sealers penetrate through the pores of concrete and seal them from below the surface. If you live in a place where the weather can get harsh frequently, you can rely on these sealers to protect the surface against it.

The sealer also prevents other damages like stains, freeze-thaw and de-icing chemicals. Using them you can protect your loved ones from slipping in wet conditions.

Film-Forming Sealer

These sealers don’t let the water penetrate your concrete surface by building a barrier against it. They come in many forms like acrylic, epoxy and polyurethane. These varieties provide their own kind of intensity in shine while enhancing the color and highlighting the decorative beauty.

a. Acrylic

Acrylic makes up some of the most popular concrete sealers available in the market. It is much more affordable than other options and easier to apply. You can usually use it on both interiors and exteriors .

They are likely to offer more conveniences like UV resistance, non-yellowing, quick drying and protection against both chloride and water. The ideal areas for using acrylics are pool decks and driveways. Acrylic sealers can further be divided into two categories as follows-

  • Solvent-Based: Solvent-based concrete sealers tend to be quite glossy, durable and they enhance the color simultaneously. However, their VOC content is generally high which can harm your pets and family members, as well as the environment. Additionally, this solvent type of sealer is also possess higher odor which can be disturbing.
  • Water-Based: The water-based sealers are not as shiny as the solvent-based penetrating sealers. They don’t last too long either. But they shine in terms of being safe for your loved ones and the environment. These sealers contain much lower levels of VOCs and odors which make them more pleasant choices in certain cases.

b. Epoxy

Epoxy sealers are meant to be used indoors for sealing the various parts made of concrete. It could be effective on your countertops, overlays, stained concrete and high foot traffic areas of your house. You can rely on them to provide a hard and durable finish in either transparent coating or colored ones.

The resulting gloss from them is either high or moderate but never zero. It can resist abrasion and has water-repellent qualities. Usually these sealers need to be mixed with something and then dry pretty fast. Therefore, you will need to be very quick in both its preparation and application.

c. Polyurethane

Similar to epoxy, polyurethane sealers also provide impressive resistance against abrasion with their coating.

Additionally, they also protect the exterior area from harsh chemicals. Compared to acrylic sealers, they have twice the thickness and come in a variety of sheen levels. The finish stays intact for a long time without yellowing.

They are typically used on concrete floors where traffic is always high, or on the darker places where the area needs more gloss. You can use it in both interior and exterior locations.

Stamped Sealer

Stamped concrete sealers are known for being a very economical choice. It suits both indoor and outdoor areas where you can apply the coatings with utmost ease.

You can use them to get a durable finish that is also UV resistant, breathable and non-yellowing. The catch is that – it needs acrylic sealers for application.

Our Recommended Best Concrete Waterproofing Sealer

1. 5 GAL Armor AR350 Solvent Based Acrylic Wet Look Concrete Sealer

Foundation Armor AR350 Concrete Sealer

The first sealer on our list comes from the brand of Foundation Armor who manufactures sealing and coating items for concrete surfaces. If you have been looking for something that works the best on such surfaces, this might be a great place to start!

This sealer has been produced maintaining the industrial level of requirements. So you can rest assured that you are getting the highest quality possible that suits even the professionals.

It is a solvent-based acrylic that will make the concrete and pavers look darker in order to make their appearance look wet. The resulting finish has a subtle gloss and can last for a long time against all odds.

Additionally, the formula will prevent those areas from yellowing which extends its durability even further.

For the interior surfaces, the sealer will last anywhere from 1 to 3 years, while it lasts 3 to 7years for the exteriors.

Even if your concrete or paver areas have not been sealed yet, it can still work on these areas because of its self-priming nature. You can also make it work on similar exterior areas that were sealed previously with a solvent-based acrylic product.

At first glance, the price point may shock you. However, it seems incredibly cost-effective once you see that one of these containers can provide you with five gallons of the product.

Highlighted Features:

  • Breathable non-yellowing solvent based acrylic.
  • Manufactured from non-recycled raisins.
  • A self-printing sealer that lasts 3-7 years.
  • Applicable to concrete and paver surfaces.
  • Can reduce damage and deterioration.

2. Siloxa-Tek 8500 Ready To Use Concrete Sealer

Waterbase, best penetrating concrete sealer

Even though it sounds like a mythical entity initially, Ghostshield is actually a brand of KreteTek which specializes in concrete sealers, densifiers and more of such products for both residential and commercial buildings.

All of them are carefully engineered in the lab by using advanced nanotechnology and creative chemistry to come up with the most effective formulas. One of these products are the penetrating sealers for concrete 8500 that utilizes silane or siloxane for making your indoor and outdoor exteriors look flawless!

Its proprietary water-based formula blends siloxanes and silane in such a way that it can prevent potential damage and resist moisture problems at the same time. Using these transparent surface sealers will keep your concrete surface safe from deicing salt, mold, mildew, cracking, pitting, spalling, freeze-thaw damage and chloride.

Since it is hydrophobic in nature, the sealer also actively resists water vapor transmission and moisture problems. When it has dried up, you will not see any visible change and thus you can happily preserve the original appearance of your thoughtfully designed concrete area.

Each container of the Siloxa-Tek 8500 carries a gallon of one of the concrete sealer which can cover up to 250 square feet in a single coating.

Highlighted Features:

  • Proprietary water-based formula meeting industrial standards.
  • Engineered silane or siloxane to reduce moisture intrusion.
  • Protects the exterior from chloride and deicing salt damage.
  • Resists mold, mildew, cracking, freeze-thaw damage and more.
  • Each gallon can cover up to 250 square feet in a single coating.

3. Liquid Rubber Waterproof Sealant – Indoor & Outdoor Coating

Best Waterproof Sealant for Concrete

The Canadian company of Liquid Rubber started its journey in the early 2000s. Since their inception, Liquid Rubber has been focused on developing construction products which do not harm the environment. After 20 years, they still stay true to that objective by always keeping the formulas free of all VOCs and solvents.

So it comes as no surprise that their cement waterproof sealer has also been made to be environment-friendly by excluding those harmful materials. As a result, you don’t have to wear a breathing apparatus while applying the sealer. It is also safe for your loved ones – be it people or pets.

You can easily consider this to be the best concrete waterproofing sealer that can retain itself for a long time. The UV-stable & Waterproofing final membrane has the power to stop the sun, water damage, and also to prevent adhesion failure.

This black colored sealer comes in three container sizes which are 1 quart, 1 gallon and 5 gallons. So you can easily pick the one most suitable for your basements or outdoor concrete area.

For vertical areas, you can cover 30 square feet per each gallon by applying it in 3-4 heavy coats. The resulting membrane will be 30-mil in thickness. In the case of plain areas, one gallon of the sealer can cover 15 square feet if you apply it in 4-5 heavy coats to achieve a 60-80 mil membrane.

Highlighted Features:

  • Comes in sizes of 1 quart, 1 gallon and 5 gallons.
  • Can be used for both indoor and outdoor areas.
  • Environment-friendly formula with no solvent or VOC.
  • UV-stable final membrane prevents adhesion failure.
  • Back sealer that is safe for both pets and humans.

4. Rain Guard CR-0360 Micro-Seal Concentrate Sealer

If you have been looking for a sealer that can work on additional concrete surfaces, this Micro-Seal Concentrate sealer from Rain Guard will probably rank quite higher than the other items on your list. Along with applying it on concrete surfaces of your house, you can also use the sealer on concrete countertop, porous wood and other masonry materials as well.

Like many other items on our list, this transparent water-repellent sealer is also water-based. No matter what orientation of a surface you apply it on – vertical or horizontal – it repels the water and stays 100% breathable.

After using, it neither alters the appearance nor leaves a film on the outward. It has been produced using a special formula that utilizes the technology which prevents the applicable area from becoming yellow and shiny. The sealer will also keep the area safe from anti-freeze stain, oil stain, gas stain, mold and mildew growth.

You can find this technologically advanced concentrate sealer in three sizes of a quart, a gallon and five gallons. This array of different sizes seems very reasonable to satisfy the most common consumer requirements. Remember that each quart of this product will be able to cover about 750 square feet of the area.

Highlighted Features:

  • Comes in three sizes of 1 gallon, 5 gallons and 1 quart.
  • Penetrating sealer made of silane and siloxane.
  • Transparent breathable water-repellent formula.
  • Resists stains made by oil, gas and anti-freeze.
  • Each quart can cover 750 square feet.

5. MasonryDefender Penetrating Concrete Sealer for Driveways, Patios, Sidewalks

MasonryDefender Concrete Sealer

As the brand name suggests, Masonry Defender is dedicated to protecting all your outdoor masonry areas from various damages. You can use this transparent sealer to coat the concrete surfaces for achieving the non-glossy finishing through a nearly invisible layer of the product.

It is mainly meant for treating outdoor spaces like patios, sidewalks and driveways made of concrete. After applying it, you will not observe alteration in appearance or residual left on the exterior part. However, if the substrate is dense, it may get slightly darker. Ideally, it should last for as long as five years!

The breathable non-film forming floor sealer will keep the area safe from common concrete surface issues like pitting and cracking. Its formula fights against freeze thaw damage, efflorescence stains and de-icing salts or chloride ions. Such protection works good for horizontal exteriors made of above-grade concrete.

Its formula is made of silane and siloxane which doesn’t harm the environment. This eco-friendly penetrating concrete sealer can bond with the minerals present in the base and extend the layer’s durability.

You will find these MasonryDefender penetrating sealers in two sizes of 1 gallon and 2.5 gallons. Each gallon is capable of covering 90 to 150 square feet areas only. That is why it comes at an incredibly affordable price point.

Highlighted Features:

  • Comes in two sizes of 1 gallon and 2.5 gallons.
  • Transparent non-glossy breathable sealer.
  • Eco-friendly formula with silane and siloxane.
  • Protects against dirt, oil stains and de-icing salt.
  • Meant for outdoor concrete and masonry areas.

6. 5 GAL Armor AR500 High Gloss Solvent Based Acrylic Concrete Sealer

Armor AR500 Solvent Based Acrylic Concrete Sealer

Another popular concrete water sealant made by Foundation Armor is the solvent based AR500 model. Similar to its other predecessor items on our list, this one also promises to provide durable high gloss while protecting the place from multiple damages.

The solvent based formula keeps the exterior breathable while successfully penetrating through its high solid molecules. It claims to introduce an unmatched bonding with each layer of its acrylic coating.

With its special characteristics, the sealer works relentlessly against all major harmful factors. You can rely on it to keep the outward safe from abrasion, extreme temperatures, UV rays, hot tire pick up and more. Its fight against these entities continues for a long time and thus makes it a durable solution.

To be more specific, the high gloss finish should last for up to 2 to 5 years if you apply it in two layers. After this time period, you may need to reapply it for bringing back the shine on faded and dull areas.

This sealer can be used on concrete pavers, poured concrete, stamped concrete, aggregate and many other options. You can also apply it on unsealed exteriors and the ones which have been sealed previously using a similar solvent based acrylic. It comes in a wide array of colors to suit your space just right!

Highlighted Features:

  • Solvent based, breathable acrylic coating.
  • Can penetrate high solids with superior bonding.
  • Resists UV rays, abrasion, and extreme weather.
  • High gloss finish lasts long up to 2-5 years.
  • Applicable on different concrete surfaces.

7. Olympic Stain Waterguard Waterproofing Sealant for Concrete

Olympic Stain Waterguard Waterproofing Sealant

Olympic is a globally renowned brand that has been serving its consumers since 1938. Needless to say that it is one of the most trusted names in the market due to the high quality it delivers through all of its products.

Among its extensive range of products, one category is Olympic Stains which focuses on resurfacers, wood cleaners and exterior stains. The Waterguard sealant belonging to this category aims specifically at keeping your area safe from water damage and mildew growth.

In addition to being a concrete water seal, it also works on many other options like brick, wood and stucco. You can use it to treat both interior and exterior spaces of your home.

Make sure that the temperature of that area is between 40 and 90 degrees in Fahrenheit before application. The most optimum values in this range are 50 to 85 degrees Fahrenheit. Once applied, it should take about 12 to 14 hours to dry completely.

This is one of the most affordable waterproofing sealants you will come across. It comes in two sizes of one gallon and five gallons to suit different requirements. Each gallon can cover anywhere from 100 to 350 square feet based on the surface texture and porosity.

Highlighted Features:

  • Penetrates and protects from water damage.
  • Extends durability by resisting mildew growth.
  • Works for many surfaces other than concrete.
  • Made for both indoor and outdoor application.
  • Each gallon covers about 100 to 350 square feet.

8. ToughCrete Concrete Sealer (Covers 600SqFt)

Best Waterproof Concrete Sealer

ToughCrete is one of the most popular products developed by Quest Chemicals. This sealant can be described as a concentrated water-based emulsion that uses silane or siloxane as its primary ingredient. The main objective of this sealer is to repel water and salt from the porous surfaces.

It offers much more effectiveness than a topical coating by penetrating into the substrate and creating a chemically bonded polymer network. This formula creates a hydrophobic barrier that doesn’t let water or salt get into the surface anymore. But the substrate can still breathe since the vapor can enter and exit it.

You can use this milky white sealer on common construction ingredients like concrete, stone, masonry, block and others. It does not make the applied area glossy and is free from any harsh solvent or toxicity. You will not observe any yellowing afterward. However, a minimal alteration of color might happen.

The sealer is available in two sizes and packaging. You can either get it in one gallon jugs or five gallon pails. Each gallon covers up to 250 square feet of concrete, 175 square feet of brick and 100 square feet of split face block. It is safe for the environment and is approved by the Department of Transportation.

Highlighted Features:

  • No-gloss penetrating sealer made of siloxane.
  • Prevents damages from water and salt.
  • Can protect your product for over 10 years.
  • Eco-friendly formula approved by DoT.
  • Each gallon covers up to 250 square feet.

9. Armor WL550 Matte Wet Look Sealer for Concrete

If you want professional grade sealing on your concrete patio, driveway or similar surfaces, Armor WL550 would be a great solution for that. It especially works well for those who prefer a wet look on their products. The formula is solvent-based in nature and darkens the sealed substrate to make it look wet.

In addition to concrete, you can also use it on other items like pavers, brick, slate, stone and porous masonry. There will be no gloss on the surface after the application is done since this sealer aims at creating a matte finish.

The water-repellent feature helps the substrate to reduce its water absorption by 95% and prevent other damages like cracking, pitting, spalling, staining, mildew, mold, algae, etc. So you can ensure all-around protection for a variety of exteriors with this one sealer!

It is made from non-recycled resins to be safe for the environment. Because of its eco-friendly nature, this UV-resistant breathable sealer has a low VOC. Besides, it will not leave a surface film since it works entirely below the exterior part. That’s why it can be a good choice as a patio sealer, especially for the country areas. 

You can find it in two sizes of one gallon and five gallons. Each gallon can provide a coverage of up to 175 square feet on porous surfaces and up to 225 square feet on smooth areas in one coat.

Highlighted Features:

  • Water-repellent formula reduces damages.
  • No surface film left behind after application.
  • Breathable and eco-friendly with low VOC.
  • Durable coating lasts for up to 3-5 years.
  • Will provide a shiny wet look on the exterior.

10. Rubberseal Liquid Rubber Waterproofing

Rubberseal is a brand of the Floridian manufacturers called Inflow Solutions who has over two decades of experience in the coatings industry. Unlike many of its competitors, this brand offers plenty of variety to choose from in terms of both colors and sizes.

It is one of the most versatile waterproof concrete sealers you will find out there which caters to a wide range of consumers. For starters, it can bond to most of the base materials including concrete, wood, steel, plastic, glass, PVC, stucco, drywall, Styrofoam, stucco and polyethylene.

You don’t have to restrict yourself to only one shade since the sealer comes in five beautiful and essential colors. In addition to the usual transparent one, it is also available in white, light gray, dark gray and matte black. So you can just gloss over the current surface or give it a subtle makeover by introducing a new shade!

This eco-friendly sealer is made to be self-healing and puncture-resistant. It scores low in terms of both VOC and odor. The coating lasts a long time by releasing absorbed heat, decreasing heat penetration, reflecting solar radiation, reducing ambient air temperatures and lowering energy consumption significantly.

It is available in four sizes of 1 gallon, 2 gallons, 5 gallons and 1 quart to suit all levels of waterproof sealing requirements.

Highlighted Features:

  • Comes in four sizes and five colors.
  • Resistant to UV exposure and aging.
  • Eco-friendly for low VOC and low odor.
  • Rated by EPA for Energy Star program.
  • Self-healing and bonds to most materials.

11. Eco Advance EACON16CON Waterproofer Concrete

Eco Advance EACON16CON Waterproofer 16-oz Concrete

As you can guess from its name, Eco Advance is a brand dedicated to developing products which do not harm the environment in any way. It specializes in sealers, water repellents and cleaners.

One of its most popular products is this siloxane water sealer for concrete. The ideal materials for this product includes brick, natural stone, artificial stone, stucco, pavers, eifs, split-face block and more.

Unlike most other items on our list, this one is actually a liquid concentrate and not the ready-to-go sealer. This means, you will need to mix it with clean water in either a sprayer or a container. The container size must be large enough to hold at least one gallon of this sealer. The 16 oz product present in each unit is meant to produce one gallon of siloxane sealer.

This non-toxic non-flammable sealer is low in both odor and VOC. You can use it in the presence of humans and pets without making any particular arrangement for ensuring their safety. The water-based breathable barrier keeps plants and grass safe as well without staining the surface.

It will fight against mold, mildew and algae while staying breathable for the surface. Each gallon of this sealer can provide the coverage of 100 to 300 square feet. After this process is done, you will need to wait for a couple of hours at most to let it dry.

Highlighted Features:

  • Liquid concentrate formula for one gallon.
  • Eco-friendly due to low VOC and low odor.
  • Breathable waterproofer makes it durable.
  • Works on many surfaces along with concrete.
  • Provides coverage of 100 to 300 square feet.

12. RadonSeal DryWay Water-Repellent Concrete Sealer

RadonSeal DryWay Water-Repellent Concrete Sealer

RadonSeal is a brand of concrete sealers that has been on the market since 1997. One of their most popular products is DryWay which particularly targets bringing in water-repellent characteristics to the surface. You can protect the concrete from water based damages, freeze-thaw, chemical spills and road salts with this sealer.

It is a penetrating sealer made of silane and siloxane that builds a barrier below the concrete surface which continuously repels water. As a result, the area stays sealed against deep water penetration while not trapping any moisture within the substrate. Therefore, the material can breathe freely while not losing its quality.

In addition to all these, the sealer also keeps the area safe for both vehicular and foot traffic due to its slip resistant characteristics. It beads vehicular fluids, chemical spills and surface water. Any unsightly efflorescence is reduced after using.

You will not observe any unnatural appearance on the surface since it doesn’t form films and maintains the authentic look. You can use it in both interior and exterior areas. After applying this sealer, you may not have to reapply it for the next seven years!

Each gallon of DryWay sealer can cover 150-200 square feet of poured concrete, 80-120 square feet of concrete blocks and 50-150 square feet of bricks or pavers.

Highlighted Features:

  • Penetrating silane and siloxane sealer.
  • Meant for both interior and exterior use.
  • Works on multiple masonry surfaces.
  • Water-based formula can last up to 7 years.
  • Provides five gallons in each container.

Comparison Chart of Concrete Sealers




Coverage (sq. feet)

Armor AR350


5 gallons

175 / gallon

Siloxa-Tek 8500


1 gallon

250 / gallon

Liquid Rubber


1 quart, 1 gallon, 5 gallons

30/gallon (vertical), 15/gallon (flat)

RainGuard Pro


1 quart, 1 gallon, 5 gallons

750 / quart



1 gallon, 2.5 gallons

90-150 /gallon

Armor AR500


5 gallons


Olympic Stain


1 gallon, 5 gallons




1 gallon, 5 gallons

250/ gallon

Armor WL550


1 gallon, 5 gallons



Liquid rubber

1 quart, 1 gallon, 2 gallons, 5 gallons


Eco Advance


1 gallon




5 gallons

150-200/gallon (poured concrete), 80-120/gallon (concrete blocks)

The Advantages of Waterproofing Concrete Sealer

Benefits Of Using Concrete Sealers

Mold Inhibition

The base material of concrete is porous in nature which means water gets inside it quite easily. As a result of this occurrence, concrete is often the breeding ground for mold and mildew growth. Being a victim of these, your surface can easily lose all its glory and turn greenish with discolorations soon.

To avoid them from growing on your concrete, you need to treat the surface with waterproofing sealer. Its formula will prevent the concrete from staying wet for too long and thus inhibit the mold growth.

Extended Lifespan

Since waterproofing sealers protect the concrete from multiple common issues, the surface automatically enjoys a much longer lifespan than usual. It stays away from water based damages, scaling, cracking, freeze-thaw damage and more. As a result, this long lasting sealers extend the average lifespan of the concrete surface sealer is from 10 years to 30 years.

Better Appearance

Because of the protected surface, your concrete areas start to look much better and more appealing than usual. Some of them elevate the default color while some other options retain the natural color while adding more gloss. You can pick the right aesthetic for you from all these varieties available among such sealers.

Increased Property Value

Investing in concrete waterproofing sealer will surely make your surfaces look better and last longer. This can be a good financial decision as well if you are planning to utilize the space for real estate. Doing such sealing treatments at regular intervals will increase its property value significantly.

Availability Add Economical Investment

If you are running on a tight budget, you will be happy to know that even the best concrete waterproofing sealer can come at a very economical price point. Especially, if you purchase five gallons instead of one, the average cost per unit decreases. As a result, you can get more done with more product and less price.

What To Consider When Choosing The Waterproofing Concrete Sealer

How To Choose Waterproof Concrete Sealer


One of the most impactful aspects of choosing a waterproofing sealer is how it affects the appearance of your concrete after applying.

The solvent based sealers tend to make the original color darker and leave the wet looking surface with a glossy finish. Due to this effect, you may not be sure of the resulting color beforehand. Besides, these sealers have a higher possibility to leave streaks or bubbles in the finished surface.

Water-based sealers on the other hand don’t bring any alteration to the default appearance and can deliver glossy or matte finish depending on the respective formula.


Since most reliable sealers don’t come cheap and applying them requires a considerable amount of effort, it would be wise to choose one of the concrete sealers whose effect lasts for a long time. On average, the good acrylic sealers tend to last about 2 to 3 years.

However, this time period can be extended to as long as 10 years for some high-quality sealers! But, make sure that you’ve maintained the surface properly. So keep the longevity of your chosen sealers in mind before making the final decision.

Ease Of Application

In terms of application, sealers can come in multiple forms to suit different needs. The most common of them is the ready-to-use variety which you can either spray using a garden sprayer or roll on the target surface. This is the easiest form of application available in the market. Other types include the water based packaged sealer. You have to mix water with the sealer to prepare it.

Drying Time

If getting it done within a particular timeframe is important to you, then you need to look for sealers that have minimum drying time. This is the period required by a sealer before it can handle light levels of foot or vehicular traffic.

Acrylic sealers offer the highest efficiency by drying to the touch within an hour of the applying time and then 11 hours more after the final coat has been completed. Other types that rely on epoxies or polyurethanes must be left alone for at least 24 hours for drying up properly.


The coverage of each sealer differs from the other due to their unique formulas. Usually, one coating of the penetrating concrete sealers should cover about 100 to 400 square feet. This area, of course, reduces when the number of coatings increases. So check the package of your chosen sealer for detailed information. 

VOC Content

In order to protect our environment from further damages, many people prefer to go for the concrete sealers that meets their requirements while also being kind to nature.

If you believe in this ideology as well, choose the products which score low for VOC or volatile organic compounds. These gases can react with other pollutants in the air and then cause all living beings trouble. They are particularly dangerous for human beings since some of them can cause cancer.


A breathable sealer means that its formula allows concretes or bricks to release any vapor trapped inside them.

This happens because some water does get through the pores even after sealing the exterior part. Its intrusion can be reduced but cannot be fully stopped. As a result, the trapped water turns into vapor and builds up inside the substrate. That is why sealers for any porous surface should always be breathable.

Indoors or Outdoors

There are many concrete waterproofing sealers that can be used for both interiors and exteriors. However, some of them are limited to only outdoor use. Make sure that you aren’t using those for indoor places like basements. This happens due to the stark differences between their textures, formulas and effectiveness. So pick your sealer keeping the location of your surface in mind.

UV Resistant

While the sun is extremely useful for the sustenance of our species and other living beings on earth, its UV rays can prove to be quite harmful to the sealers that are made of UV-absorbent polymers. Some of these substances include almost all epoxies, styrene-acrylics and non-aliphatic polyurethanes.

Because they absorb the UV rays too easily, they can experience a photochemical breakdown which can degrade their quality. For all these reasons, 100% acrylic sealers make a much better choice due to its full transparency to UV light. They can protect your surfaces for a much longer time than others. 


If the target area is a busy one where people and pets walk on often, you should get a sealer that is made to be slip-resistant.

Otherwise, they can suffer from injuries by moving on such a high-traffic area after the sealer has been applied. A sealer made to resist slips will avoid the possibility of such unfortunate incidents.

FAQs About Concrete Sealers

FAQs About Best Concrete Sealers

What Is The Difference Between Concrete Sealer And Waterproofer?

Regular concrete sealer is known to keep the area safe by creating a protective layer over it.

On the other hand, the concrete waterproofers tend to penetrate into the surface pores and build the protective layer below it. So they both provide protection for your concrete surface in their own ways.

Is It Better To Spray Or Roll Concrete Sealer?

Most concrete sealers are meant to be sprayed since they come prepared and ready to be used on the target area. It is more effective than rolling since spraying can provide the same coverage with half the effort. You can choose to roll the sealer if its solvents are made to evaporate slowly.

Can You Apply Concrete Sealer Over Old Sealer?

For those of you who already treated the concrete surface with a sealer, you will need to remove it completely using acid etching or grinding. However, if the new sealer is compatible with the old one, you can just apply the new one without erasing the previous layer.

Will Bubbles In Concrete Sealer Go Away?

Bubbles, blisters and similar defects can form on concrete surfaces treated by solvent-based sealers. One way to get rid of them, is making the place wet with either xylene or acetone. This process or step is known as a solvent bath. However, too many bubbles may indicate that the sealer was too thick.

What Happens If It Rains On Concrete Sealer?

It is a good idea to check the weather forecast for the day to prevent rain ruining your fresh coating of concrete sealer. If it does rain on the sealed place, the ongoing crucial chemical reaction can get interrupted. You may observe stains of white or dark spots on the surface afterward.

How Many Coats of Sealer Can I Put on Concrete?

If you are unsure about the number of coats to apply on your concrete surface, go for two coats. This is the safest suggestion since your concrete surface sealers may not be able to absorb the first layer of sealer at the same rate. As a result, the substrate can seem to be sealed unevenly after application.

Applying a second coat over it will definitely erase that possibility and bring in a uniformly distributed sealer all over the concrete surface.

What is the Best Sealer for Concrete Countertops?

I’ve already described the concrete waterproof sealers. Almost all of these works well on the concrete floor, garden floor, as well as on the concrete slab. If you need a product only for sealing concrete countertops, you may choose the Rain Guard CR-0360 Micro-Seal Concentrate Sealer.

As you already know, the activity of these sealers depends on the environment too. So, don’t forget to check the weather info of your zip code before choosing the sealer.

Related ArticleHow to seal concrete countertops step by step guideline.

How Do You Seal Concrete to Make It Waterproof?

The process of sealing is quite easier. Simply mix the sealer dilution by maintaining the ratio of 70% water and 30% sealer. Then saturate the concrete with water and apply the sealer. That’s it!

However, to get a detailed overview of this process, please check our

What is the Best Concrete Waterproofing Sealer?

All of the products in this list are good for concrete waterproofing. You can choose any of those based on your concrete surface, weather of your zip code, and product. 


As you can see, finding the best concrete waterproofing sealer for your area really depends on what kind of surface you have there and what are your preferences for its finished appearance. You can choose to make it glossy and gorgeous, or matte and elegant.

There are plenty of formulas, brands and categories to choose from as well. Carefully go through their list of ingredients, precautions, and coverage information to land on the most fruitful sealer for your concrete surface. With the right choice, the entire space can start looking brand new in no time!

If you don’t have previous experience in applying these products, feel free to hire some experts or friends to help you out. Otherwise, it may end up doing more damage than good to the surface and increase the work for you even more.

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