The list is endless of the things that endanger the looks and durability of your beautiful countertop. Water, vinegar, soap scum, salt, spices, mold, food stains, and other elements all pose a risk.
Water, for instance, can soak in and create cracks when it freezes and expands. Stains can become hard to remove and scratch the nice surface.
If you want to keep your concrete countertop looking great, then you got to think about applying the best concrete countertop sealer. The product creates a barrier that considerably limits water and air from getting into the countertop. It also prevents staining and scratching.
There are countless of products online designed to seal your countertop. However, not all of them are quality-made. So, I created this article to help you narrow down your options and get the right sealer for your needs.
Black Diamond Stoneworks Sealer
Foundation Armor Solvent Based Concrete Sealer
Siloxa-Tek 8500 Penetrating Concrete Sealer
GlobMarble Concrete Countertop Sealer
Tuff Duck Concrete Countertop Sealer
Miracle Sealants 511QT6 511 Impregnator Sealer
Cheng Concrete Sealer 500 Ml
How To Choose Right Concrete Sealer For Countertops?
There is a reason why many homeowners and builders choose concrete for countertops. Simply put, it is resilient and long lasting. That being said, constant exposure to liquids, salt, food stains, and other contaminants in the cooking-area is a huge threat to the outlook and durability of your concrete countertops.
But there’s a solution – applying a sealant. The best concrete countertop sealer provides resistance against liquids, oil, dusts, and even scratching. Moreover, it enriches the beauty and the outlook of the countertop and makes it last longer.
How do you find a good one that works? Here are a few things to consider.
Some types of concrete sealers change the appearance of your surfaces while others don’t. Mostly, the penetrating types do not change the outlook of your concrete countertops. Because of its surface tension, they get absorbed into the exterior part as opposed to just settling to the top.
Well, we can all agree that the main purpose of sealers is to protect against elements such as liquids and other dust. Nevertheless, some products make the outlook darker or enhance the beauty, or add a gloss finish on that.
Going for an item that changes or doesn’t change the surface’s outlook is all a matter of preference. If you feel your concrete countertop is looking a little dull, choose a tainted one. It helps to refresh the color.
But keep in mind that high-gloss sealers can make the outer part a little slippery. So, you might want to add grit to the item before applying it to introduce some anti-slip properties.
The major way to categorize the concrete sealers is by penetration. There are those products that penetrate deeply into the surface when applied, and there is another type that settles at the top, forming a film.
Penetrating sealers, also known as impregnators, come with such names as siloxane, silane, siliconate, and so on. By penetrating the exterior, these form a sturdier barrier than the film-forming sealers. Though a little more expensive, they are resilient to wear, and will thus not peel any time soon.
If you’re looking for a more natural look without change to the appearance of your concrete surface, go for an impregnator.
Film-forming sealers, as the name implies, just settle at the top. These come with names like acrylics, urethane sealers, and epoxy primer. Though more affordable, the products are more prone to degradation, and will hence, need more frequent reapplication.
Go for a film-forming sealer if you need a wet, glass, or feather finish to boost the color of the exterior of your household furniture’s like table.
The average kitchen countertops has a size of 30 square feet. But in your house, you might have a few countertops including in the bathroom. Also, you might be looking to seal more areas other than just the countertops. Perhaps you want to seal the patio or the garage floor as well.
These are the reasons why you got to consider the coverage.
Virtually all sealers come with an estimation of the area they can cover. You can find the info in the user manual or the packaging or label. Think about the collective size of the surfaces you want to cover and see whether the quantity you’re getting will be sufficient.
For instance, if it has a coverage of 60 square feet per gallon, the area you want to cover should be at or below that size. Else, you will need more than a 1-gallon bottle. So, check the quantity as well as the recommended coverage per gallon.
Another factor you might want to keep in mind is whether the countertop is old or new. The older the concrete, the more the amount of sealer required owing to the extra porosity.
My recommendation – always have a little more than you think you’ll need rather than running out of it before your project is complete.
Drying and curing time
When a sealer coat is dry, that means dry to the touch, which is not the same as curing.
Dry time matters because it determines how quickly you can apply the next layer. Also, the quicker the drying time, the safe the application is from contaminants. Because if you think about it, the longer the wait, the higher the chances of dust and other contaminants settling there and ruining the application.
Be sure to check the drying time before purchasing it. Realize that acrylics are the fastest-drying. In just 1 hour, they’re dry to the touch. Penetrating sealers take a little longer – 3 to 6 hours. Urethane sealer and epoxy primer might take up to 2 full days to dry.
Ever seen a cracked concrete countertop? This is a common problem, especially with the painted ones. You might not know this, but it’s a porous material. That means that even before you seal it, the material has already absorbed different liquids and air. If you want non-porous surface, you have to use epoxy primer.
If it is painted or sealed with a product that is not breathable, or doesn’t allow the trapped moisture or air to escape, there might be trouble. During the winter season, the trapped air and moisture, with no escape route, freeze and expand. It forces the outer part to expand and it results in cracks.
If you want to avoid cracks, get a breathable sealer.
Almost all sealers contain harmful chemicals. That being said, the levels of toxicity differ. For instance, some products contain VOCs, which are quite poisonous, while others don’t. Also, some contain acids, while others are acid-free.
Keeping in mind that the cooking countertops are used for food preparation, you ought to consider the safety. Go for those countertop sealers that does not have VOCs, acids, and other toxic ingredients. You should see the term “non-toxic” in the packaging as an indication of safety.
As you are using these countertop sealers on the cooking area, you must consider the heat resistance function pretty seriously. It doesn’t matter whether you are frothing milk for your family or preparing a lemon juice for your friends, these sealers always add an extra layer of safety for you.
Or, you could go an all-natural like the CLARK’S Soapstone and Concrete Sealer. It comes in last in the review above.
That’s all you should consider before buying the countertop sealers. If you are still confused, seek help from your expert friends or consult with a local concrete countertop institute.
Our Recommended 6 Best Concrete Countertop Sealer 2021
1. Black Diamond Stoneworks Wet Look Natural Stone Sealer
Black Diamond is a well-known brand that specializes in sealing products for stone and ceramic tiles. Though the brand started from scratch, its superior quality has seen it rise to the top ranks in the industry, with over 30 products currently.
If you’re looking for the best concrete countertop sealer, check out the Black Diamond Stoneworks Wet Look. This is liquid solution that offers great simplicity and ease of use.
What makes it a fantastic option for countertops is the fact that it is not harsh. Unlike many other products in the industry, it is not brewed with toxic chemicals. Therefore, you can safely remove food stains or milk layers from the exterior without worrying about poisoning when epoxy primer sealed with it.
Moreover, the solution doesn’t have a strong odor. In fact, it comes with a faint nice smell reminiscent of lemons.
One major concern you might have when applying a countertop sealant is whether it will darken the outer section. I’d like to assure you that with the Black Diamond Wet Look, it’s not going to happen. Rather, what you end up with is a nice, shiny feather finish.
You will love to notice how fast it dries. In 1 hour, the surface will be dry to the touch, and within a day, it will be cured. The dried part is a reliably waterproof, chemical-resistant, scratch-resistant feather finish that lasts.
Ease of application probably the most important factor of Black Diamond countertop sealers. You have several choices for how you want to do it. You can use a paintbrush, a wool pad applicator, a piece of sponge, or a low-pressure sprayer.
The liquid comes out of the bottle with a nice consistency like skimmed milk. This helps prevent scratches, puddling and also aids the coverage.
You can use it on not only concrete countertops but also tile and grout, brick, garage floor, and more, both indoors and outdoors.
- Great coverage – 600 sq ft per gallon.
- Nice skimmed milk consistency for easy application.
- Wide range of application style choices – brush, wool pad, etc.
- Dries to a beautiful sheen in 1 hour.
- A non-toxic formula that is safe for use on countertops.
- Does not darken most surfaces.
2. Foundation Armor AR350 Wet Look Sealer | best sealer for concrete countertops
Foundation Armor is a leading distribution company in the US that works with US-made sealants. Its quality-made products are ready to apply right out of the container.
If you want a product that will create a nice and durable protective coating on your countertop, the Foundation Armor AR350 is worth a look.
This liquid acrylic sealer, manufactured using non-recycled resins, enhances, seals, and protects a range of surfaces from brick and concrete to pavers.
Appearance is the main thing that people love about this product. Applied, the liquid dries to a nice dark finish that looks wet and glossy. Yes, there’s some darkening, but not so much that you cannot make out the original shade of your countertops. A great advantage I have observed is that there is no yellowing.
As an acrylic sealer, it offers some degree of breathability. That way, moisture is allowed to pass out from the concrete, so that the strength of your countertops is not compromised.
Another favorite feature of mine of this Armor AR350 is its coverage area. This particular model has a capacity of 5 gallons. Amazingly, the quantity is enough to cover an area of 700 to 900 square feet depending on the number of coats you put on.
Countertops are constantly exposed to liquids, salt, food, and other items that might cause staining and other forms of deterioration. Thankfully, the glossy film it creates is resistance to these elements, thereby preserving your countertop’s look and quality.
The Foundation Armor AR350 is extremely easy to apply. You can use a brush or even a roller with no bubbling issues. As it is self-priming, you don’t need to worry about applying a primer beforehand. Also, maintained is easy as you can just apply the new coat directly on top of the old one.
Applied well, the protection offered by Armor AR350 can be expected to last over five years without a need to recoat.
- Great coverage – 500 to 900 square feet for the 5 gallons.
- Acrylic is breathable and low VOC.
- Darkens the surface a bit but has no yellowing.
- Dries to a wet, glossy finish.
- Excellent resistance to water, salt, food-spatters, and chemicals.
- Easy to use – self-priming and can be applied with roller, brush, or sprayer.
- Versatile – can be applied to brick, pavers, etc.
3. Siloxa-Tek 8500 Penetrating Concrete Sealer
Many sealers change the outlook of your household appliances, such as making them darker and adding a sheen. But perhaps you want something that will not change the look at all. If that’s the case, the Siloxa-Tek 8500 Penetrating Concrete Sealer is for you.
When you apply it, you might feel like you haven’t really accomplished anything as there will be no difference even after the finish coat. To check it’s effectiveness, you may splash liquids on the floor. You will notice no leaking even after the splashing. It’s the proof of ultimate power of Siloxa Tek 8500.
What makes this the best sealer for concrete countertops is that it penetrates deep into the surface, providing reliable sealing that keeps moisture and other elements at bay. It is a unique silicane formula with industrial-grade strength to keep out liquids, salt, food spatters, milk, and chemicals.
When looking for a sealant, it is always advisable to check whether it is breathable. By being breathable, it escapes the moistures from the exterior, which ultimately improves the countertop’s durability. The Siloxa-Tek, being 100% breathable, offers this fantastic benefit.
To make things even better, it allows moisture to escape without any adverse effect on the applied coating.
Ever seen countertops with a peeling or cracking sealer? They can be quite an eyesore! Well, these are usually low-quality sealers with acids. The Siloxa, being high quality, and free of acids and VOCs, does not degrade, at least not any time soon. It is very resistant to peeling and flaking and it also resists yellowing.
You have the option of using a sprayer, brush, or roller to apply this Siloxa-Tek 8500. With its consistency, which is neither too thin or too thick, the task is a breeze. Thankfully, the coverage is massive, which ultimately helps you save money.
An effective sealant like this will preserve your concrete countertop’s natural feel and texture, check out it’s highlighted features.
- Durable with industrial-grade sealing power.
- Excellent waterproof property.
- Does not change the look of the surface.
- 100 percent breathable – allows the escape of moisture.
- Non-acidic – flaking, peeling or discoloration.
- Versatile – for both indoor and outdoor use on decks, countertops, etc.
4. Tuff Duck Concrete Countertop Sealer
When you purchase gallons of a sealer liquid, you normally want to seal various items around the home like the garage floor, patio, bathroom tiles, and more. But perhaps all you want to seal is your countertop. In that case, you won’t need a large volume of sealant.
The Tuff Duck Concrete Countertop Sealer is a small-size, 24-ounce product that works great for sealing a range of surfaces. If you’re not looking to seal huge spaces, then it will be sufficient for your needs.
Amazingly, even though it is not much, the liquid has a wide coverage. Just a little goes a long way, so you can use a little of it and keep the rest for future use or apply it to other surfaces in the house.
Another major benefit of this Tuff Duck is it’s non-toxicity. The water-based formula has no VOCs and on top of that, it is rated food-safe. That is why you can use it to cover the chair, table, or other furniture’s without concerning about poisoning.
As the tough duck drawing on the label suggests, it offers quite a bit of strength. It is a powerful formula that forms a sturdy coating on the exterior of the applied subject.
Actually, this product is designed to penetrate deeply into the surface, creating a durable shell that is impenetrable by liquids, chemicals, dusts, or salt.
As for the outlook, there is a slight darkening but the exterior becomes smoother and a bit shinier and looks beautiful. A shiny outlook like this will definitely amaze your friends and family members. Overall, the results are fabulous. You can use any application method from rolling and spraying to brushing.
- Great coverage – up to 60 sq ft per 24oz bottle.
- Non-toxic and non-VOC – safe for use in the kitchen.
- Penetrates the surface to provide a superior sealing action.
- Slight darkening with a beautiful sheen.
- Durable finish.
5. Miracle Sealants 511 Impregnator Sealer Reviews
A name like an impregnator gives a clear idea about this product.
The Miracle Sealants 511 Impregnator is not like those sealants that just create a cover on the exterior of your stove top or other appliances. It goes the extra mile by penetrating deeply. That’s the reason behind its such a long-lasting effect, going up to 20 years.
One of the marvelous facts about this product is that it works for both indoor and outdoor use. Indeed, this is the most versatile surface-sealing solvents I have come across. Apart from concrete, you can use it on slate, stucco, ceramic tiles, porcelain tiles, polished marble, quartz, and a whole range of other surfaces.
The Impregnator is built with quality in mind. As such, it is incredibly effective. Once you apply it, the solution creates a tight barrier that successfully shuts out the liquid entrance, even the oily liquids too. This factor makes it very suitable as a kitchen countertop, as it is constantly exposed to the two elements.
If you’re operating on a tight budget, wouldn’t it be wonderful if you got a product that can cover a wide area? The Miracle Sealants 511 has an unbelievable coverage. Can you imagine being able to cover up to 1000 square feet using just a quarter gallon of a sealant?
Yes, if you need a product that you can use for all your sealing needs at home, both indoors and outdoors, search no more.
Another factor that tells you you’re dealing with a quality-made product is the fact that it doesn’t deteriorate quickly. This is not like those sealers that will peel or crack or discolor the matte finish or gloss finish of your furniture’s. It is extremely durable and works pretty well.
Lastly, the Miracle Sealants 511 Impregnator is for those who don’t want something that will change the exterior tremendously. It forms an invisible barrier with a slight gloss.
- Incredible coverage – up to 1000 sq ft per quart.
- Great penetrative ability for long-lasting sealing.
- Durable – offers protection for up to 20 years.
- Non-toxic – safe for areas used in food preparation.
- Versatile – can be used on marble, stucco, granite, tiles, concrete, etc.
6. CLARK’S Soapstone and Concrete Sealer (Wax)
The last item on this least is for those who love all-natural products. If you’re keen on protecting the environment while ensuring your food preparation areas are free of toxins, the CLARK’S Soapstone and Concrete Sealer is your best bet.
This wax is manufactured from natural extracts including beeswax, mineral oil, and lemon oil. But what caught my attention the most is the carnauba wax ingredient. In case you didn’t know, Carnauba is a special high-grade wax from plants that has an excellent sheen.
Thus, if you’re looking for a nice gloss finish on your countertop, then Clark’s wax will serve you well.
Another great benefit of this wax is that it is super tough. When applied, the wax doesn’t just settle on top. It gets absorbed into the surface, creating a tougher layer of protection and providing a lasting solution.
Does the exterior of your product look dull and chalky? Clark’s wax is the revitalization it needs. It works like a charm when it comes to restoring colors. It moisturizes dry surfaces, giving them a wet, glossy look.
Most importantly, the wax is easy to use. Applying it to the outer part will be a piece of cake especially if you use Clark’s applicator or buffing pad. After applying it, you only give it 20 minutes then wipe off the excess.
At that point, you will notice that when liquid splashes on the outer part, it beads up to show the barrier is working.
If you’ve ever used wax or sealants that smell weird, I’d like you to know this is not like those. CLARK’S Soapstone and Concrete Sealer has a nice smell like lemon juice.
For the best concrete sealer for countertops, as well as stone and slate, try Clark’s. It is all-natural and non-toxic, and therefore perfect for food prepping areas.
- Formulated from natural products like lemon oil and mineral oil.
- Contains carnauba wax for extra sheen and toughness.
- Comes with moisturizing properties.
- Effective – forms a waterproof, oilproof, stain-proof seal.
- Smells great like lemons.
Our Top 6 Comparison Chart of Sealer for Concrete Countertops
|Coverage (per gallon)||
600 sq ft
Glossy finish doesn’t darken
Foundation Armor AR350
100 – 200 sq ft
Glossy finish, darkens
250 sq ft
320 sq ft
Slight darkening and sheen
Miracle Sealants 511
4000 sq ft
3 to 5 hours
300 sq ft
Benefits of Using Sealer on Concrete Countertop
A concrete countertop is a beautiful structure. Apart from providing you with a place to prepare your food, it adds aesthetic value to your kitchen.
That being said, the structure is susceptible to damage from liquids, salt, soap scum, vinegar, and other elements. Unprotected, it can start to accumulate food stains and lose its beauty. But you can prevent those problems along with the scratches by protecting it with a good concrete sealer.
Here are few tips and benefits of applying a concrete sealer to your surfaces:
No more mold
Concrete is a porous material, meaning it absorbs moisture. Without a seal, your household items will look dump. Further, it increases the possibility of getting attacked by mold and mildew. The two, in turn, discolor the surface and make it an eyesore. Liquids cannot penetrate through your household furniture’s like chair or table because of the sealing. Thus it drastically reduce the possibility of mold and mildew growth.
You’ve probably seen a cracked countertop. These cracking issues are a result of liquid and air penetrating on there and then expanding and freezing when it gets too cold. When you seal the exterior, you limit the rate at which air and thin liquid get in.
That is a great step toward improving the durability as you minimize the chances of cracking. Not to mention the prevention of mold growth also reduces the rate of deterioration and scratches.
Color Enhancing and Restoration
Has your exterior faded or been discolored due to exposure to elements or time? A sealer might be the healing power you’re looking for. Some products come with the ability to darken the exterior slightly, enhance the beauty, or add some gloss. With them, you can make the surface look as good as new. Overall, it’s glossy finish will amaze your friends for sure.
If you’re looking for a product that will work, the following concrete countertop sealer reviews should be a good pointer. Let’s dive in.
Top 4 Concrete Countertop Sealer Brands On The Market
Concrete sealers are not manufactured equally. Like any other product, there are huge variations. For instance, some dry in 30 minutes while others take days. Also, some provide reliable protection for ages while others start peeling and cracking in a few weeks.
If you’re looking for a high-quality seal for your countertop, a reliable method you can use to find it is to purchase from a reputable brand. The following are some of the market’s top-rated brands in the sealers industry.
1. Miracle Sealants
If you’ve heard of the renowned paint brand Rust-Oleum, then you have heard of the parent organization of Miracle Sealants.
So, Miracle Sealants was founded in the US in 1983 as one of the subsidiaries of Rust-Oleum. The brand was created to focus on the manufacture of premium care products for various floors including tile, natural stone, grout, and more.
In the over 3 decades the firm has run, it has risen to the top, receiving recognition from US customers as a provider of quality sealants.
2. Foundation Armor
Foundation Armor is a USA company that holds official certification for being a women-owned business. The brand is an industry leader in the manufacture and distribution of sealers and coatings. It makes and sells surface care products for concrete, tile, bricks, pavers, and masonry.
The reason why Foundation Armor has obtained one of the top spots in the industry is its commitment to innovation and quality. Moreover, it has a decent customer support team. They are eager to solve any problem you are facing while using their household cleaners.
3. Clark Seals
Clark Seals is one of the oldest players in the market, having been formed back in 1956. The company is based in Oklahoma, US.
For over 6 decades, the firm has been manufacturing some of the highest-grade seals. Its line of products includes not only elastomeric seals but also surface sealers.
Perhaps the most popular surface sealer from the brand is its soapstone and concrete sealer. The unique fact about this brand is that it is all-natural and free of harmful chemicals. Infused with Carnauba wax, the product is effective and it provides a beautiful sheen.
4. Black Diamond Stonework’s
Black Diamond Stonework’s is a California-based business that makes a perfect definition of “started from the bottom now we’re here”. The company began as a small firm selling only a few care products for ceramic tiles and natural stone.
Thanks to the founder’s ambition and commitment to quality, the brand became a market favorite. By injecting profits back into the business, the owner was able to expand the product line, so much that today, the firm sells over 30+ solutions.
Frequently Asked Questions
Why do you need to apply a concrete sealer to your countertop?
Ans: A countertop is usually exposed to many elements that can damage it. These include liquid, vinegar, salt, red wine, and other food items that can create stubborn dirt. Using only the cement paste will make the exterior area more porous and rugged. Applying concrete sealer helps you preserve your concrete, thereby avoiding dirt and cracks.
How can I apply my concrete sealer more effectively?
Ans: It is important that you learn how to apply a concrete sealer before you embark on the task. Keep in mind that the durability of the application will depend on how to seal concrete countertops properly you do it.
Well, check the manufacturer’s directions properly on the package first before applying. Here are a few tips for success:
- At first, clean the surface. You may use muriatic acid for cleaning.
- If the coat is new, let it cure before you attempt sealing it. Thus t sticks properly with the exterior.
- If you’re sealing outside, follow the weather forecasts to make sure it will not be raining in the next few days at least. A downpour on an uncured sealer will ruin things.
- Apply the sealer in thin layers. You can apply two to three layers, but give each layer at least an hour to cure before applying the next one. Keep in mind that if your concrete surface is textured, the sealer might pool if the layers are too thin.
- If the sealer is solvent-based, apply it by spraying, but if it is water-based, apply it using a roller.
Does concrete sealer make the surface slippery?
Ans: That usually depends on the type of sealer you’re dealing with. If it is a penetrating product, there may not be slipperiness. On the other hand, a film-forming sealer might make the surface slippery. You can add grit to the product before applying to prevent the surface from becoming slippery and also helps to reduce scratches.
How soon can you seal concrete countertops?
Ans: Generally, film-forming sealers will need resealing in 1 to 5 years. Penetrating sealers, in contrast, can take up to 20 years before requiring resealing, as they are more durable.
Look out for the signs of a worn seal. For instance, if the liquid no longer beads on the surface but appears to soak in. Also, look out for scratches and dullness of your concrete countertops.
What is the best sealer for concrete countertops?
Ans: The countertop sealers are available in wide ranges. We have already described top six concrete countertops sealer in this article. All of these are good enough in sense of quality, usage, and performance requirements.
However, if you still insist to know my personal choice, I will vote for the Foundation Armor AR350 Wet Look Sealer.
How many coats of sealer do I need for concrete countertops?
Ans: You need to apply at least two coats on the concrete countertops. But, it depends on the nature and absorbing capacity of the surface. You may apply once more to stay on the safe side.
A countertop is the most useful structures in the cooking areas and bathrooms. You can use it to store utensils and food items and you can also utilize it for food preparation. In the bathroom, the structure comes in handy for storing soaps and other items. Moreover, it adds beauty to your space.
Whether your countertop is old or new, you definitely want it to keep looking its best. You want to keep it free of stains and cracks.
With one of the best concrete countertop sealers reviewed above, you will be able to prevent water damage, scratches, and maintain the beauty of your countertop by keeping elements at bay. Thankfully, the products work for more than just concrete. You can use them to seal tiles, natural stone, marble, stucco, quartz, and other surfaces.
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