20 Best Granite Sealers 2023 – Reviews

Granite is the ultimate in durability and beauty, but it’s still vulnerable to erosion. When a rock develops tiny cracks that can be filled by water or air particles, then there will slowly start being cloudy spots on your granite countertop which ruin its surface appearance completely.

When it comes to the lifespan of your granite surface, water might be number one on that list. With this in mind, I’ll take a look at the best granite sealers which can waterproof and increase your granite’s durability for years.

Best Granite Sealers in March, 2023

Sealer	Covers (quart)
Stonetech Bulletproof Granite Sealer Editor's Choice	up to 200 sq ft	Check Price
Trinova Granite Sealer	up to 75 sq ft per aps.	Check Price
Granite Gold Sealer	up to 75 sq ft per aps.	Check Price
Tuff Duck Granite Sealer	up to 200 sq ft	Check Price
Miracle Sealants Granite Sealer	500 - 1000 sq ft	Check Price
Supreme Surface Sealer	up to 75 sq ft per aps.	Check Price
Miracle Sealants 511 Sealer	up to 1000 sq ft	Check Price
Black Diamond Sealer	up to 75 sq ft per aps.	Check Price
Aqua Mix Sealer	225 sq ft	Check Price
Tenax Stone Sealer	160 - 180 sq ft	Check Price
Granite Plus 2 in 1 Sealer	up to 200 sq ft	Check Price
Tenax Ager Sealer	160 - 180 sq ft	Check Price
Stone Care Sealer	up to 75 sq ft per aps.	Check Price
Stain Proof Sealer	up to 250 sq ft	Check Price
Stone Pro Sealer	up to 200 sq ft	Check Price
MORE Premium Sealer	up to 250 sq ft	Check Price
HMK S234 Stone Sealer	up to 220 sq ft	Check Price
FILA Sealer	up to 205 sq ft	Check Price
Dupont Sealer	up to 450 sq ft	Check Price
NEX GEN	up to 200 sq ft	Check Price

1. Stonetech Bulletproof Sealer – Best Granite Sealer

This is a penetrating sealer for granite, and the formulation is obviously designed to maximize that feature. The advertising repeatedly refers to something called “microbond protection”. This means that Stonetech Bulletproof Sealer will supposedly bond with the stone surface in a way that is stronger and longer-lasting than other sealers of this type.

I can say that this sealer is one of the most long-lasting sealers on the market. When we look at the reviews for this sealer they seem to be quite positive. There are a few complaints, but well over half of the reviews that we see are positive ones. Let’s start by looking at the better qualities.

Versatility Is High

Overlap doesn’t seem to be a problem, as everyone reports a sealer that makes a good smooth layer regardless of application method. Some users say that they used a “flooding” approach while others did the job in small spots. Either way, it comes out very even.

No one wants to dull the natural color of granite, as this is one of its main strengths. In terms of longevity, this one lasts for five years on interior surfaces and 3 years on external surfaces.

The complaints about this sealer are pretty inconsistent, which speaks well for the quality. The most common complaint is the relatively short shelf life. Stonetech Bulletproof is only good for two years unopened and one year after being opened. This means that you should only buy what you need for a particular job. Some others said that Stonetech left a haze on the top of the stone surface. But in my opinion, all those problems are caused by the improper application.

2. Trinova Granite Sealer And Protectant – Top Granite Sealer and Polish

As the name of this sealer implies, Trinova Granite Sealer And Protectant is a combination sealer. Not only does it seep into the pores of the stone surface and seal them thoroughly, but it also creates a protective layer over the surface of the stone. Although this might have the potential to dull the coloration of a beautiful and multicolored granite surface, it definitely provides superior protection.

Spray Bottle

When we look at the reviews, one thing that we immediately see is a pattern of people having problems when using a spray bottle. Although the manufacturer’s instruction advises this method of application, most people seem to get better results using a damp cloth or soft brush. They even included a special extra-long spray nozzle, but it doesn’t seem to help matters very much.

The advertising says that this property comes from an advanced mix of polymers. Another real plus is the fact that this sealer is designed to work on grout. Although any granite sealer can theoretically do a good job of sealing up some grout, a lot of them seem to have trouble with this task in practice.

Inexpensive And Easy To Use Sealer

Trinova does get a few points for its low cost. It is one of the cheapest granite sealers on this list. This means that even if the coverage isn’t as good as advertised (which is always possible) it won’t really be that big a deal because another bottle won’t cost you a whole lot of money. This granite sealer also loses a point or two for the fact that it usually requires some buffing in order to achieve a truly clear and shiny surface.

3. Granite Gold Sealer Spray – Easy to Use Sealer

This is another spray-on sealer, and it offers many of the same advantages and disadvantages that I have seen before in sealers of this type. It’s a water-based formula that is intended for maximum ease of use.

Not Harsh Sealer

This is a relatively non-toxic granite sealer. I ain’t sure just how “non-toxic” the sealer really is, because the package still has a warning. It says to keep this sealer away from small children, so it must not be completely safe.

Still, this is not an acid-based formula, which is good because you don’t have to worry about yellowing or other discoloration. This granite sealer creates a surface that is safe for food preparation, and it’s also biodegradable for those who care about that sort of thing.

Not Permanent

This sealer will need to be re-applied about once a year. The manufacturer recommends that you re-do the finish every 12-18 months, so once a year is a very conservative estimate. While this is a fairly long duration, it still creates more work and expense over the long haul.

Gloss And Durability

One of the good things about this granite sealer is the shine that it offers. This complements the moisture-resisting properties of the sealer with the elegant look of a Roman palace. This finish is also quite durable so that you won’t scratch it too easily. I also like the fact that this sealer can be used on virtually any type of stone surface.

The only bad part is that you will need to use multiple coats if you want these benefits. The manufacturer recommends 2-3 coats for the best results, which reduces the convenience factor somewhat. Also, you cannot polish the surface for 24 hours after application.

4. Tuff Duck Granite, Marble and Grout Sealer – Another One Great Sealer

This one seems attractive to the eye, maybe because of the angry and militant cartoon duck on the label. When we look closer, we see that this sealer claims to include twice the active ingredients used by other brands. If true, this might not actually translate to double the effectiveness, but it’s definitely a plus.

Simple And Non-Toxic Sealer

Tuff Duck is a water-based formula, which is good because it won’t burn your nose so badly when you are working. It is a penetrative granite sealer that is designed to preserve the natural appearance of the stone surface in every way. This means that it isn’t adding beauty to the stone, but it certainly isn’t taking anything away from it either.

Excellent For Waterproofing

Based on the advertising, this granite sealer is especially intended for use on grout surfaces. Even most of the critical reviews (of which there aren’t very many) admit that Tuff Duck sealer will do a good job of repelling water.

However, there was more than one complaint that said that the layer was too thin. It could be that the sealer was diluted a little bit too much in order to cover more area. But trust me, I have used this sealer so many times and I haven’t seen any problems yet. Also, this granite sealer is only good for natural and porous stones. Any other type of stone will simply repel the sealer.

5. Miracle Sealants Impregnator Penetrating Sealer – The Eternal Sealer

With a name like “impregnator,” you can get a pretty good idea of how this granite sealer works. It is made to penetrate deeply into the surface of the stone and provide an exceptionally long-lasting effect.

Sealer that Lasts An Insanely Long Time

The main thing that stands out about Miracle Impregnator is its longevity. It is meant to last for up to 20 years. Apparently, the sealer is designed for indoor or outdoor use. This longevity is backed by a money-back guarantee that is subject to certain conditions.

Long Warranty With Many Provisions

The only condition that might be a problem is that the guarantee does not cover grout use. Commercial use is also not covered under the guarantee, which may be a big problem for contractors.

Several reviewers complain of a strong chemical smell when using this granite sealer, and it seems to last quite a few hours before subsiding. This is a good reason to always put a fan in the door or window when working with this stuff. Good ventilation combined with a mask can do a lot to make the job more pleasant.

It’s Easy To Make A Mistake With This One

The only consistent complaint with this granite sealer is that it isn’t easy to use. Apparently, it has to be applied very carefully to avoid smudging or discoloration. There aren’t many complaints, but almost all of them center around this problem.

6. Supreme Surface Granite Sealer and Polish – Top Granite Cleaner and Sealer

This is of the cheapest sealer on my list, but it also comes in the smallest package. Supreme Surface only comes in an 8.5-ounce bottle, but they attempt to pack every possible function into that little bottle. Supreme Surface is advertised as being a cleaner, a polisher, and a sealer all in one.

Both Cleaner and Sealer

There were some doubts as to whether this sealer achieves all three of its aims,  but I can say that it definitely does a great job cleaning the surface. Despite the fact that it’s a good cleaner you need to do preparatory cleaning if your granite surface is in very bad condition.

This sealer is meant to be sprayed onto a stone surface and rubbed with a cloth. This quick and easy method makes re-application a breeze. Another thing that contributes to this easy re-application factor is the lack of a strong chemical smell.

Apply it Properly

There were a number of complaints from people who said that Supreme Surface simply didn’t work. However, they probably failed to realize that this granite sealer is meant to be sprayed on stone surfaces in very thin coats. As such, it takes a few more coats to do the same job, and those who aren’t prepared for this fact might be convinced that the sealer is ineffective.

7. Miracle Sealants 511 Porous Plus Sealer – Great Sealer for Floors

This is a special-purpose granite sealer that is meant to preserve the natural feel and texture of the surface of the stone. Although this might not be ideal for stone coat countertops, it’s a great thing for granite or other stone floorings. You don’t want your floors to be too smooth, as that will create a slip hazard. At the same time, you want them protected from moisture. This sealer is meant to be the solution to this quandary.

Permanent But Invisible Sealer

This isn’t one of those sealers that will have to be re-applied. One job is supposed to last up to 20 years before losing its water resistance. Not only that, but the sealer contains ingredients that make it resistant to UV light degradation. It works by simply allowing UV light to pass through. Light can get through, but moisture cannot.

What surprises many people is the fact that this sealer does not alter the appearance of the stone. Instead of filling in the pores that give the granite surface its texture, this substance penetrates without filling. Thus, you get the best of both worlds.

Slightly Inferior Stain Resistance

Although this granite sealer does fulfill its stated purpose, the porous surface that it creates will be more vulnerable to staining. This is the case because offending substances (like coffee, paint, etc.) have a chance to penetrate the stone, making them much harder to remove from the surface.

Not Eco-Friendly Sealer

This one is definitely not good for the environment. When using this granite sealer on an indoor surface, you will need to make sure that you wear some kind of mask so that the fumes do not make you ill. It’s also a good idea to dispose of all waste carefully so that you minimize any contamination. Also, be sure to keep flame and heat away from this stuff, as it is highly flammable.

8. Black Diamond Stoneworks Granite Sealer – Finicky But Effective Sealer

This is a water-based penetrating granite sealer that is meant to be easy and simple. The spray bottle makes it easy to apply, although the bottle is not included when you buy a large bottle. Still, this professional granite sealer does a great job of sealing a granite countertop surface to prevent staining. Being a water-based granite sealer, it leaves a hard finish that resists scratching and scuffing with effectiveness.

A Kinder, Gentler Stone Sealer

This is also one of the least harsh granite sealers that I have used. By that, I mean that it doesn’t have a very strong odor, and it isn’t made with a brew of toxic chemicals. In fact, most users say that it has a smell that is reminiscent of lemons. For those with pets or small children in the house, this is definitely a plus. Not only that, but this sealer is also a fine choice for kitchen surfaces because of its non-toxic formula.

Some sealers can discolor the surface of the stone if they are left too long. Thankfully, this is not one of them. However, they may have sacrificed some of the effectiveness of the sealer in exchange for this gentler formula. Some customers have complained that this sealer simply did not seal the surface properly, leading to staining problems.

Follow The Instructions Carefully

The consensus on this sealer seems to be that it is very good, but only if you follow the instructions completely. Even a small deviation from the recommended process can lead to bad results. For instance, failure to quickly wipe away the excess fluid can result in a cloudy surface that always looks dirty. However, there is a much bigger problem with this sealer.

The biggest issue with this granite sealer is the fact that it doesn’t last very long on the surface. It has to be re-applied every four to six months, and six months is a very optimistic figure. Considering the relatively high price of this sealer, that is a serious downside.

9. Aqua Mix Sealer – Decent Sealer For The Big Jobs

When you’ve got a large surface to seal, this is one granite sealer that is tailor-made for your needs. It is a water-based penetrating sealer that is designed to preserve the natural look and feel of the stone. This is a difficult thing to achieve, but most seem to agree that this granite sealer does the job.

Keeps The Natural Look

Some people prefer the look of polished stone, and for these people, this sealer would not be ideal. However, there is something to be said for the look of natural stone. Some people like that rough-hewn look, and some people like the rough feel of stone underneath their hands or feet.

Durable and Long-lasting Sealer

Like any water-based sealer, this granite sealer will dry very hard and will resist damage with ease. In this case, the resistance should be even greater since the sealer is embedded deeply within the stone. It may actually strengthen the stone surface and keep it from breaking as well. According to the manufacturer, this sealer will last for up to 15 years once applied.

Possible Issues

This sealer will usually require multiple coats. In fact, some users claim that they needed more than three coats to do the job, so that is a problem in terms of value. If you overdo it, you can end up with a thick layer of chalky material, which will likely be covered in whitish blotches.

There are also some concerns about the antimicrobial component of this sealer. The granite sealer is impregnated with Microban (technically called Triclosan). Although there is no doubt that this substance works, there are some reasonable questions regarding its use. Some studies have shown a link between Triclosan and certain types of cancer.

10. Tenax Marble and Granite Sealer – Great Value Sealer

This granite sealer provides great value with good results. There are several ways in which this sealer is helpful for those who want to save money on a medium to a large project. For a start, I might mention that this sealer is one of the cheapest sealers on my list.

Why Tenax Is A Great Value

Coverage is excellent for this granite sealer, so you should be able to get a lot of use from one quart as long as you are careful. Obviously, a sloppy application technique will cause you to waste some of the sealers, but that can easily be avoided.

Another great thing is the fact that this sealer only needs to be applied once. Unlike many stone sealers, you can slap it on there and forget about it. With some other sealers, you would need to mark your calendar to remind yourself to re-apply the sealer. Chances are, you don’t need another obligation in your life, especially one that is completely optional.

Easy To Use Sealer

Most users say that the easiest way to apply this granite sealer is to dab it on a piece of scrap cloth. This could be a strip from an old bedsheet or a stained T-shirt, as any cloth will do. In any case, the process is made much easier by the fact that this sealer dries so quickly. Within ten minutes, you are ready to start buffing and polishing your surface.

The best thing about this fast-drying formula is that you can do large surfaces (like floors) in minimal time. However, although this granite sealer does dry quickly, you will not see the water-repelling effects until 24 hours later.

Quite a Toxic Sealer

Most of the downsides of this sealer come from its harsh and toxic nature. There is a very strong smell, requiring you to use some kind of breathing protection when using this sealer indoors. In addition, there are some questions about whether or not this sealer is safe for use on kitchen countertops.

This stuff is so harsh that it is classified as a hazardous material, which means that you could run into trouble when ordering this granite sealer by mail. Obviously, it depends on where you live, but shipping costs are likely to be higher no matter where you are.

11. Black Diamond Stoneworks Granite Plus 2 in 1 Cleaner & Sealer – The Sealer For Everyday Use

Are you searching for a streak-free clean granite cleaner? This 2-in-1 granite cleaner & sealer could protect your countertop from spills.  Black Diamond could seal your granite countertop and other natural stones similar to granite. This is not a stand-alone granite sealer though.

Built-In Sealer

This granite cleaner and sealer could save your countertop surface from spills coming from household stuff such as coffee, wine, peanut butter, oil, and food stains. Black Diamond should be able to keep your countertop skid-proof to protect your kids from accidental slip-ups.

Easy to Apply Sealer

This sealer is easy to use. All you need to do is to spray it on the granite countertop and wipe it down after use. You need to purchase the sprayer bottle separately because this sealer does not come with the sprayer.

Cleans All Natural Stone

You can use this cleaner and sealer for other natural stones besides granite such as marble, travertine, limestone, quartzite and travertine. This granite sealer could also work on man-made quartz surfaces too. However, you can only use Granite Plus for maintenance cleaning purposes only. If you need a stronger granite sealer you might need to look for another sealer to do the job.

Everyday Cleaning Needs

Every time that you use Granite Plus to clean your granite it fortifies the performance of your granite sealer. Normally, you can use this sealer to clean not just your kitchen countertop but, on the shower and floor surface too. Make sure that you have wiped the surface clean first before you apply this granite sealer. Don’t forget to allow this sealer to dry first to avoid streaks. It is advisable to use microfiber cleaning cloths to get maximum results.

12. Tenax Ager Marble and Granite Sealer – Color Enhancing Wet Look Stone Sealer

If you are trying to find ways to preserve the color of your granite countertops Tenax Ager is just for you. This sealer could intensify the beauty of your granite by giving the countertop a permanent “wet” look appeal. This granite sealer does not change color when exposed to the sun thanks to its “UV” stable properties.

Water Repellant

You can only appreciate the water repellant effect after 24 hours of applying this stone color-enhancing sealer. This sealer should be able to protect kitchen countertop surfaces against water, oil, and stains. For best and quicker results, use in a well-ventilated space. Otherwise, you might need the help of an industrial fan.

Long-Lasting Sealer

Tenax Ager is said to be premium-grade high-quality sealer that makes your granite last for a long time. There are other cheaper stone darkeners out in the market but, they quickly fade. Don’t spend your money on imitations if you want to save on cash, choose to buy this stone color enhancer instead. On average, each two-coat application can last for a year or a bit more.

Retains Color

Some other color-enhancing sealer will fade quickly failing to protect the stone.  You should get the darker granite effect by using at least 2 coats of this color-enhancing sealer.  You can even use Tenax Ager to enhance old terrazzo floors.

Don’t forget to test a small area first to see the results before you proceed in applying this sealer over the entire floor. This sealer can improve color retention if you use it in rough, sanded or flame textured granite surfaces.

Solves Color Mismatch

To solve the edge color mismatch this granite sealer should be applied after polishing the edges. For best results, you must ensure that you use this before any other standard “impregnating” sealer.  Otherwise, Tenax Ager won’t absorb well at all. Use as many coats as needed to get the best color match for your countertop surface.

Correct Way to Apply

If you accidentally mess up the application you can simply correct this by reapplying the sealer. Use a damp cloth and rub a small area. Subsequent rubbing will make the messy coating even out. Switch to using a clean dry cloth to rub all traces of the damp sealer.

This will leave a beautifully sealed surface. You can actually use a brush, sponge with gloves instead of using cloth when applying the sealer. When you apply it properly this will cause a blending effect on potholes.

13. Stone Care International Granite Sealer – Sealer with Protection for Natural Stone

To ensure that your granite looks great and remains that way for a long time you need a sealer that can expertly protect your granite stone.  This sealer is a penetrating sealer that forms adjustable molecular links to effectively protect the granite and stone surface.

What Makes This Sealer Unique

Unlike coating sealers, this penetrating granite sealer can reach into the pores of the stone for thorough protection. To get the best results you must apply this sealer on a dry surface. Stone care could protect stone surfaces from water and stains. This granite sealer should be able to allow the stone to breathe; releasing moisture vapors.

Shine Retention

Surprisingly, this granite sealer should be able to keep the countertop surface shiny even after you clean the granite counter. Most buyers are pleased with the results. I noticed that Stone Care protects the granite from water spots but, it was not yet observed if it can still protect the granite a few months after.

Sealer That Works on Travertine

This sealer works on rough travertine or limestone surface. Don’t forget to follow the directions found on the bottle. This granite sealer can also work on honed travertine. However, don’t expect to see a change in the overall look of the stone. Stone Care will just protect the honed travertine against staining.

Not For All Stone Types

This sealer could be a good granite sealer for some stone surface types but, it is not for flooring because there is a need to wait for the pre-treatment time to do its job.

Tips on Sealing

Before you begin to seal try to remove all the items on the surface. Be sure that the surface is clean and completely dry before you start sealing. To get the best results you need to work at above room temperature using a microfiber cloth.

Allow the first coating to dry up first at least 3 to 5 minutes before you do the second application. Certain colors of granite or stone may require you to repeat for an additional application. Once the application is complete wait it to dry for 24 hours. This will completely cure and bond the seal onto the stone.

14. Stain-Proof Premium Impregnating Sealer for Stone – Another Decent Sealer

This is a heavy-duty sealer that is designed to be stronger than average. I can see that the goal was achieved because this product is definitely a lot stronger than the average sealant. It penetrates deeply into the stone, creating a hard and durable finish that is suitable for counters, floors, or any other granite surface.

Lets Moisture Evaporate

One good thing about this sealer is the fact that it lets the stone “breathe.” This means that there are microscopic gaps in the finish. Those gaps aren’t big enough for water or oil to penetrate, but they are big enough for air or vapor to escape. That’s a good thing because it keeps the sealer from locking in moisture, as sometimes happens with other sealers. This one is also suitable for indoor or outdoor use.

Not for Small Jobs

Where most sealers need to be re-applied every year or two, this one claims to be a permanent job. If true, that does help to justify the high price of this sealer, but it’s still pretty expensive. I would recommend this one for serious jobs only because of its high cost. You usually need 2-3 coats of this stuff to seal a surface properly, but each coat only takes about 10 minutes to dry. Thus, you can be done pretty quickly.

As high-end sealers go, this is considered to be one of the best. Reviews for this product have been about 80% positive, which is always a good sign. It gives one of the most stunning mirror finishes that I have ever seen, so it’s definitely a great choice for the people who like their shine.

15. Stone Pro Granite Sealer – The Sealer Against Oil and Water

Pro Sealer works as a multipurpose impregnating granite sealer.  Stone Pro Sealer performs better by penetrating polished calcite that includes granite, marble, travertine, limestone, terrazzo, and onyx surfaces. This sealer should work on both honed and very porous limestone. One coat should be sufficient for use on the travertine surface.

Cheap Sealer

I can say that Pro Sealer is sold at a less expensive price than most solvent-based granite sealers. You get solvent protection sold at a water-based sealer price.

Water and Oil Repellant

Pro Sealer is said to be an excellent oil and water repellant sealer. It is not too thick nor too thin. The sealer is actually watery which will make it easier to apply. Since this sealer is water-based there is no need to dilute it in water. You just need to follow the directions on the container.

No Bad Odor Fumes Sealer

For those who are concerned about odor fumes, this granite sealer may smell a little bit since it’s diluted, the slightly stinky smell will quickly go away. This granite sealer can be applied even in an enclosed room since this sealer does not emit strong odors.

Easy Application

No scrubbing is required because it should be easy to apply using a sponge mop. There is no need to go on hands and knees nor a need for long handle application. This sealer does not leave a residue or streak on the surface. It will take from 24 to 72 hours in order for this granite sealer to fully cure. This will depend on the kind of natural stone where it was used for.

Not for Sealing Countertop Paint

You cannot use this to seal the paint since the sealer soaks into the stone.

16. More Premium Stone Sealer – The Sealer for Natural Stone and Tile Surfaces

More Premium Stone Sealer protects the countertop surface by enhancing the natural stone.  This granite sealer works best on almost all different kinds of natural stone such as granite, marble, stone, clay, slate, tile, and a lot more.

Solid Barrier

The “polymers” More Premium Stone Sealer formula contains are said to build an invisible barrier not just on stains. This granite sealer effectively protects grout to preserve and make it look almost new. I find the seal and protect features of this sealer practical as a stain protector both for indoor and outdoor surfaces.

Works on Most Surfaces

Apply generously on the surface. This sealer should leave behind smoothly covered surfaces without bumps. This granite sealer improves the natural stone’s color and texture.

Safe and Effective Sealer

More Premium Stone Sealer should be safe enough to use even in all rooms of the house. This sealer should be efficient and safe enough for everyday use. Aside from using a spray use a paintbrush and let it dry for at least 15 minutes as directed.

Makes Cleaning Easier

This granite sealer is simple and safe to use. It should provide an effective way of keeping the countertop spill-free without leaving behind stains on the stone.  More Premium is effective in dissolving dirt and oil which makes the surface easy to clean.

Keep the Room Smelling Fresh

More Sealer has faint peppermint and thyme scent leaving the room smelling fresh and clean. It appears that there are no issues about untoward odors when applying this sealer.

17. HMK S234 Stone Impregnating Sealer – Sealer Without Shine

This is another solvent-based granite sealer. Solvents penetrate deeper than water or oils, allowing this sealer to penetrate much more deeply. That leads to a thicker finish with more of the stone protected from damage.

Preserves Natural Look of The Stone

This one does not add anything to the natural look of the stone. In fact, it doesn’t even add that much of a shine. If you like the look of natural, unpolished stone, this product might be just what you want. It’s also vapor-permeable, which is very helpful. If some moisture should happen to get trapped in the stone, this sealer will allow it to evaporate away.

This one is safe for food prep surfaces while still being tough enough for floors. That’s a great balance between two extremes, so the manufacturer deserves a little bit of credit for that. I also like the fact that you only need two coats of this sealer. Some of the more absorbent types of granite may take three coats, but most will be fine with two. That might have something to do with the thick and goopy consistency of this product.

Some Problems

Of course, I do see a few problems as well. This one is still pretty expensive, and some people may not like the fact that it doesn’t make the stone slick and shiny. In order for this sealer to adhere, the surface must be exceptionally clean and dry. The label says that it’s best if the surface hasn’t contacted liquids in at least 24 hours. This one also takes a little longer to dry; You’re looking at 2-4 hours of dry time and about 48 hours of curing time. That’s a little bit inconvenient, but the results are well worth the wait.

18. FILA Solvent Based Sealer – Safe Sealant

The FILA Solvent Based Sealer is designed to seal surfaces of granite and protect the surfaces from damage or stains. The solvent-based sealer does not only protect granite countertop surface alone, it also acts and protects the natural stone, marbles, and porcelain. It also acts as a water repellent as water destroys surfaces. The sealer is regarded as a deep sealant, it penetrates deep to protect surfaces from stains, moisture, and other types of contaminants.

Safe for use in food areas

It is always difficult selecting a sealer to use interiorly, especially in sensitive areas where food is being prepared or handled like the kitchen. Foods can be predisposed to toxic chemicals that are contained in some sealers. For FILA solvent-based sealer, there is no risk to food or health, it complies with the recommended level of Volatile Organic Compound (VOC).

Food preparation countertops surface made of granite, marbles, porcelain, natural stone, etc can easily be sealed with the FILA solvent. It contains no toxic fume or odor as well. The safety of the MP90 for use in food-sensitive areas is certified by regulatory bodies.

Seals and protects surfaces

The major expectation of sealers is to protect the surface they are applied to, surfaces like granite or tiles require sealers to keep their surfaces intact and get protection from external materials. FILA sealer is produced with the use of Solvent technology, the technology offers extended protection onto surfaces. FILA sealer dissolves stains and grim on surfaces and goes further to penetrate deeply into surfaces to give long-term protection to surfaces.

The process of application of FILA sealer to surfaces is quite simple, as a beginner, you can easily apply this sealer yourself without the assistance of a professional. FILA seals and protects the all-natural stone, porcelain tile, quartz, and granite surface. Surfaces should be cleaned and kept dry before the application of the MP90 solvent sealer, you can use a paintbrush to apply a generous coating of the sealer. It is best to give about the surface about 10 minutes before wiping to allow it to penetrate deeply.

Leaves surfaces in a natural state

Granite surfaces and other types of natural surfaces have a very attractive visual appeal and smooth surface, however, if the surfaces are left unprotected, they get stained and marred. The FILA solvent sealer solves this problem by sealing and protecting the surfaces of these stones, it doesn’t stop there, the solvent leaves the surfaces in their natural state or color.

The natural stone look and surface are preserved without discoloration or deterioration. FILA Solvent also gives long-lasting protection to such surfaces, it makes maintenance of the stone surfaces easy to carry out.

19. Dupont Stone Sealer – Long-lasting protection

The Dupont Stone sealer is large, it comes in a one-gallon container large enough to cover large surfaces and saves the cost of having to buy more sealers for a project. If you have just newly installed your tiles or granite countertops, or you are planning to carry out a renovation the Dupont stone sealer is one of the best options to go for in terms of size and quantity. The Dupont stone sealer is not only significant for its size alone, it also protects surfaces and gives long-lasting protection.

Long-lasting protection

A desirable trait for sealers is their ability to protect surfaces for a long time, nobody wants to keep changing sealers or reapplying sealers frequently, the process of applying granite sealers can be time-consuming and resource-draining. It is best to have a sealer that does the job once and protects your surface for a long time.

The Dupont stone sealer protects the surface and not just as a one-time thing, it protects surfaces for a long time. The stone sealer protects surfaces for up to 2 years, this long-term duration is beneficial to surfaces that require a great deal of protection and prevents damages from moisture or stains.

Suitable for Bathroom and Floors

Tiles, granite, and other surfaces that are exposed to moisture and steam, the exposure to moisture weakens seals placed on these surfaces and tiles. Moisture and steam can constantly damage these surfaces. The Dupont Stone sealer is great for a lot of surfaces like granite, marble, and travertine, and when these types of stones are used in moisture exposed areas. The stone sealer creates a strong barrier over surfaces and seals them off, this makes Dupont reliable and efficient in protecting surfaces from damage.

Another added advantage of using the Dupont stone sealer is in its form of protection. It forms a dual means of protection; it protects against both water-based and oil-based stains. The ability to able to prevent both water-based and oil-based stains makes it versatile and desirable for use within the house.

Large Coverage area

Dupont has a large coverage when applied to surfaces, due to its large content it can cover up to 450 square feet. If you have large space or you have several surfaces you want to seal, the Dupont sealer is a great option for use in this regard to have a cost-effective means of sealing.

The Dupont sealer comes in a large container, and might not be convenient for application, you can make use of kits to apply effectively to surfaces, you can also make use of small spray bottles for direct application to surfaces. Surfaces can require more than one coating of sealant for effective action.

20. Black Diamond Stonework NEX GEN – Dual Action

The Black Diamond Stonework works well with stonework, it is seen as both a sealing and protecting agent for surfaces like granite, tiles, marble countertops, and also showers floor.

Black Diamond serves the purpose of first a sealer; it works by penetrating surfaces and sealing the surface, second, it serves as a protector; it protects surfaces from common stains and prevents them from damaging surfaces.

Strong protection

The water-based formula provides lasting protection to the stone surfaces. The protection offered by the Black Diamond is strong, there is less frequent need to change the sealer frequently. Black diamond comes in a 1-quart container and makes it easier to apply sealer onto surfaces. You might need to make use of a specialized kit to apply to surfaces since the product does not come in a spray container.

When applied to surfaces, Black Diamond penetrates deeply into the surfaces to give long-lasting protection against stains and moisture.

Ease of application

The process of application is simple and does not require any complex steps or actions. To obtain a professional result, apply Black Diamond on surfaces, allow it to sit for a while before wiping it off the surface.

The use of Black Diamond sealer does not damage the surface or surrounding area, excess sealer on surfaces can easily be wiped off. The entire surface can also be cleaned to remove excess sealer applied to it.

Protection from staining

Black Diamond gives strong protection to granite, tiles and other surfaces from damage and stains, it creates a layer to prevent the entry of spills, stains, and moisture, which are likely to affect the structure of the surfaces. Even in demanding areas like moisture areas or outdoors, Black Diamond preserves the integrity of the surfaces and prevents cracking of countertops or floors.

Safe usage

Black Diamond Stoneworks is regarded as one of the safe sealers that can be used, it is formulated to be toxic-free and safe to be used indoors. The sealer is well designed and tested by Stoneworks to comply with safety regulations. Sealers penetrate deep into surfaces and some affect the structural integrity of the surfaces it is applied to; in the case of Black Diamond sealer, it protects the surface and acts as a non-corrosive impregnator.

The dual function of the Black Diamond allows it to serve as both a natural stone penetrating sealer and a protector.

The Stoneworks sealer does not give off any toxic fume or odor, it is compatible with indoor use and safe in contact with food substances.

What to Consider When Buying the Best Granite Sealer

Consider the following important factors when choosing the best granite sealer.

Toxicity

First, choose nontoxic granite sealers to do the trick. There are organic or water-based granite sealers sold online that are better alternatives. The latest technological breakthrough consists of coatings that protect your polished stone surfaces using a clear environmentally friendly breathable sealer. Look for sealers that are 100% natural and do not contain harsh chemicals. Using non-toxic sealers like this can help you save on as much as 50% of labor costs.

Food safety

Second, you must choose a food-safe granite sealer. Using stone sealers will prevent deep absorption of liquids. This simply means, your food will not come in direct contact with the stone sealer. It will take 1 to 2 days before the sealer is fully cured. The process will make the granite sealer chemically un-reactive meaning this will not contaminate your food.

Price

Some sealers may be cheap but they aren’t that good at sealing your granite. Also, they aren’t often environmentally friendly and safe for you. It’s better to spend a little bit more to get a good granite sealer that will protect your countertops for years.

Colors of Granite Sealer

Lightly colored and white granites are unpolished softer stones that need sealing every 1 to 3 years. Dark-colored granites which include polished marble can be sealed less frequently on average; every 3 to 5 years.  How long granite lasts and perform will depend on your particular stone surface and sealer.

Types of Granite Sealer

There are two main types of stone sealers: penetrating and film-forming.

Penetrating Sealer

A penetrating granite sealer has a high level of ability as a liquid repellant. This type of sealer provides invisible protection to allow moisture to escape from a porous surface. Penetrating sealers are usually used outdoors because it provides excellent protection against severe environmental conditions like change in weather patterns.

Film Forming Sealer

Film-forming granite sealers are used for decorative concrete. There are actually three main types of film-forming sealers. All of these are available in water-based and solvent-based versions. Film-forming sealers range from the thinnest to the thickest. This type of granite sealer produces sheen in different intensities to highlight and enhance the color of the surface where it is used.

Check If Your Granite Really Needs Sealing

Not all granite countertops are created equal. You can use the water test to see if your granite needs to be sealed. Using about ¼ cup of water pour this into the counter. Take note of how fast the water is absorbed into the granite. If you notice immediate absorption you need to apply a couple of layers of granite sealer. For the slow absorption rate of 4 to 5 minutes, you need to re-do the sealer every 3 to 5 years.

Lemon Juice Test

Similar to the water test, you need to place a few drops of juice in an unnoticeable spot on the countertop. If dark spots appear quickly, this means the stone is reacting to an acid. If it takes a minute for lemon to be absorbed, a granite sealer is needed to protect the countertops. If lemon doesn’t absorb, there is no need to seal.

When It’s Better to Seal Granite

Granite sealers must be applied to the polished surfaces of the granite when there is a small amount of airborne dust. If there is ongoing construction in your kitchen you need to do sealing after the final cleaning has taken place.

Sealing Granite in A New House

In case you moved into a previously owned house, generally, you are clueless about whether these are sealed or not. There is also a chance, that the previous owner uses a cheap granite sealer. It would be better to play safe by having these granite tops sealed immediately.

What Granite Sealer Doesn’t Do

There are things that granite sealer doesn’t do. Sealers do not form a protective barrier on the stone surface. Sealers only seal the stone below the surface.  Sealing a stone will not protect it from being etched. Granite sealer does not make the granite shinier. If you want to see a shiny granite countertop you can use granite polish to get the job done.

Taking Care of Your Sealed Granite

If you want your granite countertop to look new for decades you can follow the suggestions given in this care guide. Stick to these easy steps on how to perfectly maintain your granite countertops

Daily Cleaning

Clean the countertop daily by using a damp cloth. Use a few drops of dishwashing soap. Rinse the countertop using clean. Dry it up using a clean cloth. There is no need to use chemicals and other kinds of specializing cleansing materials.

Deep Cleaning

Each week, you made need to do a deep cleaning. You need a pH-neutral cleaner specifically made for the purpose of cleaning granite surfaces. Never use home remedies like bleach, vinegar, or any sealers containing ammonia. These solutions will destroy the countertop surface.

Resealing

You need to reseal your granite every 12-24 months.

What Not to Do With Your Sealed Granite Countertops

Second, avoid using hot pots and pans directly on the countertop surface. However, experts do recommend using a trivet for crockpots that emit heat for long periods of time. There is a chance that heating one area of the top and not the entire area can cause the countertop to crack. If you can use coasters when placing hot drinks do so.

If you will use the countertop surface to cut vegetables and other food items use cutting boards. This will prevent scratches and etchings left behind by the tools that you are going to use to prepare food.

Frequently Asked Questions

How often should you seal granite countertops?

The answer to this question will vary based on which sealer you use and which kind of stone you have. Some types of granite are much more porous than others, and the more porous types will need to be re-sealed more often.

As a general rule, you need to re-seal your granite countertop once every 1-3 years. Again, this will vary by sealer (the more expensive ones tend to last longer). If you use your counter every day, it should not take long to recognize when liquids are no longer beading on the surface.

How long do you have to wait to use counters after sealing granite?

Once again, this will vary somewhat by stone and granite sealant type. However, you should make sure to wait at least two hours after sealing. If you use your granite countertop before then, the sealer might still be wet.

Make sure to consult the label of your sealing sealer for more specific information on drying time. Regardless of anything, however, you will need to give the counter surface twenty-four hours to cure before you attempt to buff or polish.

Is it possible to protect granite countertops without sealing?

Penetrating sealers represent the only good option for the long-term protection of granite and other stone countertops. By creating a water-repellent surface, you keep water and other liquids from penetrating the stone. Unless you use something else as filler, you won’t get the same level of protection.

Does sealer darken granite?

In general, a sealer will darken the stone slightly, but the difference should be very slight. In most cases, the difference is extremely subtle. Unless someone places a sample of unfinished stone next to the counter for comparison, it will make little to no difference.

When you first apply the sealer, you will probably notice a difference in tone, but that’s no reason to worry. The finish will lighten up as it dries and cures, which shouldn’t take longer than 48 hours. The effect will be more noticeable on textured surfaces and less noticeable on smooth ones.

Can sealer make granite look wet?

Yes, some sealers can make granite look wet. That’s because they contain a chemical called a gloss enhancer. A gloss enhancer makes the surface of the stone look shiny by reflecting light. It can also make colors look more intense.

Some sealers also contain a wetting agent. A wetting agent is a substance that helps water spread out evenly on a surface. When it’s combined with a gloss enhancer, the wetting agent helps the sealer to create a wet look on the granite.

It’s important to note that not all sealers contain gloss enhancers or wetting agents.

Can you use oil to seal the granite?

No, you cannot use oil to seal granite. Oil is typically used to treat wood, but not stone surfaces. Oil can actually make the granite look dull and it can also promote the growth of mildew and mold. Use should use granite or stone sealers instead of oil. These products are designed especially for stone sealing.

Conclusion

Any of these sealers will allow any piece of granite to be used indoors without fear of seeing them ruined by the destructive effects of the water, oils, and stains. However, the best all-around granite sealer on my list is probably the Stonetech Bulletproof. It’s important that this sealer doesn’t try to be all things at once. It simply does one job and does it well.