For all its beauty and toughness, granite is still vulnerable to erosion just like any rock. When the surface begins to erode in any way, the appearance becomes cloudy and the beauty of the surface is ruined.
It might surprise you to find out that water is probably the number one threat to the longevity of your granite surface. With that fact in mind, let’s take a look at the best granite sealers that are designed to waterproof your stone surfaces and increase their lifespan.
Best Granite Sealers in August, 2019
|up to 200 sq ft||gallon, quart|
|2||Tuff Duck Sealer||up to 200 sq ft||quart|
|3||Miracle Sealants Impregnator||500-1000 sq ft||pint, quart|
|4||Trinova Granite Sealer||up to 200 sq ft (can, thin layer)||18 oz|
|5||Supreme Surface Sealer||up to 200 sq ft (can, thin layer)||8 oz|
This is a penetrating sealer, and the formulation is obviously designed to maximize that feature. The advertising repeatedly refers to a something called “microbond protection”. This means that Stonetech Bulletproof Sealer will supposedly bond with the stone in a way that is stronger and longer-lasting than other products of this type.
I can say that this sealer is one of the most long-lasting options on the market. When we look at the reviews for this product 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 product 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. But in my opinion, all those problems are caused by the improper application.
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 product claims to include twice the active ingredient 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
Tuff Duck is water-based formula, which is good because it won’t burn your nose so badly when you are working. It is a penetrative sealer which is designed to preserve the natural appearance of stone 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 sealer is especially intended for use on grout. Even most of the critical reviews (of which there aren’t very many) admit that this product 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 product was diluted a little bit too much in order to cover more area. But trust me, I have used this product so many times and I haven’t seen any problems yet. Also, this product is only good for natural and porous stone. Any other type of stone will simply repel the product.
With a name like “impregnator,” you can get a pretty good idea of how this product works. It is made to penetrate deeply into the surface of the stone and provide an exceptionally long-lasting effect.
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 product 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 product, 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 product 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.
As the name of this product implies, Trinova Granite Sealer And Protectant is a combination product. Not only does it seep into the pores of the stone 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.
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 product 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
Trinova does get a few points for its low cost. It is one of the cheapest 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 product 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.
This is of the cheapest product 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 product 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 product is meant to be sprayed onto a stone surface and rubbed in 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 product is meant to be sprayed 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 product is ineffective.
This is a special-purpose sealer that is meant to preserve the natural feel and texture of stone. Although this might not be ideal for 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 product is meant to be the solution to this quandary.
Permanent But Invisible
This isn’t one of those products 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 product 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 its texture, this substance penetrates without filling. Thus, you get the best of both worlds.
Slightly Inferior Stain Resistance
Although this product 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.
This one is definitely not good for the environment. When using this product indoors, 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.
This is another spray-on product, and it offers many of the same advantages and disadvantages that we have seen before in products of this type. It’s a water-based formula that is intended for maximum ease of use.
This is a relatively non-toxic product. I ain’t sure just how “non-toxic” the product really is, because the package still has a warning. It says to keep this product 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 product creates a surface that is safe for food preparation, and it’s also biodegradable for those who care about that sort of thing.
This product 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 product is the shine that it offers. This complements the moisture-resisting properties of the product 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 product can be used on virtually any type of stone.
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.
This is a water-based penetrating 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 product does a great job of sealing a granite countertop to prevent staining. Being a water-based sealant, 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 product 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 product in exchange for this gentler formula. Some customers have complained that this product simply did not seal the surface properly, leading to staining problems.
Follow The Instructions Carefully
The consensus on this product 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 product.
The biggest issue with this product is the fact that it doesn’t last very long. 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 product, that is a serious downside.
When you’ve got a large surface to seal, this is one product 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 product does the job.
Keeps The Natural Look
Some people prefer the look of polished stone, and for these people, this product 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
Like any water-based sealer, this product will dry very hard and will resist damage with ease. In this case, the resistance should be even greater since the product is embedded deeply within the stone. It may actually strengthen the stone and keep it from breaking as well. According to the manufacturer, this product will last for up to 15 years once applied.
This product 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 product. The 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.
This product provides great value with good results. There are several ways in which this product is helpful for those who want to save money on a medium to a large project. For a start, I might mention that this product is one of the cheapest sealers on our list.
Why Tenax Is A Great Value
Coverage is excellent for this product, 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 product, but that can easily be avoided.
Another great thing is the fact that this product only needs to be applied once. Unlike many stone sealers, you can slap it on there and forget about it. With some other products, 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
Most users say that the easiest way to apply this product 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 product dries so quickly. Within ten minutes, you are ready to start buffing and polishing.
The best thing about this fast-drying formula is that you can do large surfaces (like floors) in minimal time. However, although this product does dry quickly, you will not see the water-repelling effects until 24 hours later.
Most of the downsides of this product 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 product indoors. In addition, there are some questions about whether or not this product 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 product by mail. Obviously, it depends on where you live, but shipping costs are likely to be higher no matter where you are.
Stone sealing is the process of applying surface treatment to products made of natural stone to stop the process of staining and corrosion. Granite is porous and is prone to damage if unsealed. Sealers slow down the natural rate of absorption but, they won’t completely block stains. Granite sealer will keep the liquid off the surface so that you can easily remove the stain.
What is Granite?
Granite is made of interconnecting mineral crystals. The most common type of granite is feldspar and quartz. People have used granite for thousands of years for different applications. Granite is used in bridges, buildings, and other exterior projects. Indoors, polished granite tiles are used for countertops, tile floors, and other design elements. When used on kitchen countertops, granite is far superior to marble. Granite is highly resistant to scratching, acid, heat and low porosity.
Advantages of Granite
Granite is resistant to common wear and tear. Granite is a tough and hard material that can resist scratches, staining, scorching and even slicing. Having a granite countertop will not damage your knives. In normal use granite will not easily crack. Besides, you can easily repair cracks using ground granite and a strong adhesive.
Wear And Tear
First, even when you use the best quality granite, this stone can easily lose its elegance. Granite has tiny holes sealed into the compound where oils and stains can seep in. You must make an effort to protect it using a granite sealer. Before using the granite sealer you must clean and polish the surface first.
Resistance to Heat
Second, even when you subject granite to temperatures as high as 480 ºF up to 1,200 ºF, granite can withstand heat. However, to avoid potential damage you should not subject this stone in extreme changes in temperatures. Avoid placing something cold on the granite counter after you place something hot in the same area.
Third, just a simple reminder not to allow coffee, wine, oil, and similar substances to stay long enough since these will cause stains. Sealers do not prevent stains completely but, using these sealers will make it harder for stains to saturate the granite. Stain protection depends on the granite or marble countertop.
Minimal Time to Clean
Fourth, when granite is sealed, you don’t have to spend a lot of time to clean up. You can easily wipe out dirt without the need to scrub. You will only need dishwashing soap and rinse it well. In case, there are some spaces that have residues you can use a small amount of acetone. Wipe the excess solution using a clean cloth.
Typical Uses of Granite
Granite is one of the world’s toughest materials. Have you ever wonder why granite is used for monuments. This is because granite can last down the generations. Before power tools were discovered, carving granite was a difficult process. This is the reason why this stone is often reserved for use on very important projects. Granite is used indoors and outdoors.
In terms of indoor use, granite is primarily used for kitchen countertops. Granite can be used on kitchen and bathroom floors in homes and commercial buildings. Granite has two kinds of finishes: polished and honed. Polished can be easily identified because of its mirror gloss sharp reflection properties. Honed, doesn’t cause reflections. Honed finishes can be used for bathroom and kitchen countertop.
Because of its ability on low water absorption and being scratch-resistant granite is used for patios. Granite is ideal for outdoor areas. Granite’s durability and versatility make it a common choice for the outdoors. Granite is often used for exterior walls. Its properties prevent granite from suffering from structural damage and water stains.
Flamed finishes are typically used as outdoor paving because this makes the floors slip-resistant. Flamed finishes cause a granite surface to become porous. The intense flame is fired at the stone that causes the granite to become rough. Bush hammered is another type of outdoor finish. The textured finish is created by hammering. This type of finish makes the stone slip-resistant too. Both types of finishes are susceptible to water and “efflorescence”.
Efflorescence alone won’t cause a major problem by its own. However, this is a sign of moisture intrusion. Mold grows in the presence of high levels of moisture. This can compromise the structural material. Efflorescence is induced by moist conditions, low temperatures, rain, dew and water added to the surface of fresh concrete.
Marble versus Granite
It all boils down to two of the most popular choices of stones used around the home. Granite wins this round because it is harder than marble. Granite being chip and scratch-resistant. Both of these two materials have similarities too. Marble and granite need a significant amount of care. With some extra care, both granite and marble countertops will look fantastic for decades. You can expect a beautiful bathroom, kitchen, laundry, and another office area with any of these two stones.
What is A Granite Sealer Made Of?
Sealers are composed of resin dissolved in water. “Fluoropolymer” as an ingredient is highly resistant to acids, bases, and solvents. Choose water-based “fluoropolymers” that can protect your granite for 5 years or even beyond. This type of sealer provides you with extra-strong sealing protection.
Light versus dark granite
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 last and perform will depend on your particular stone and sealant.
A penetrating 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 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 sealer produces sheen in different intensities to highlight and enhance the color of the surface where it is used.
Ideal Granite Sealer
The most ideal kind of granite sealer is a sealant that can offer you the maximum protection for granite, grout, limestone, concrete, marble, travertine and slate. A good granite sealer will offer maximum protection even when you use just one single coat.
Advances in “nanotechnology” has made it possible to use the most advanced and durable sealer yet invented. The latest technological breakthrough consists of coatings that protect your polished stone surfaces using a clear environmentally friendly breathable sealer. This type of sealer is ideal not just for granite but for other surfaces that need protection from moisture and stain damage. Better ingredients mean more expensive ones.
First, choose nontoxic granite sealers to do the trick. There are organic or water-based sealer sold online that are better alternatives. Look for products that are 100% natural and does not contain harsh chemicals. Using non-toxic products like this can help you save on as much as 50% of labor cost.
Second, you must choose the food-safe granite sealer. By using stone sealers this will prevent deep absorption of liquids. This simply means, your food will not come in direct contact with the stone sealer. It will take a 1 to 2 days before the sealer is fully cured. The process will make the sealer chemically un-reactive meaning this will not contaminate your food.
Third, ideally, you can clean your granite countertop using soap and water solution. You must avoid using regular cleaning chemicals because this might strip the seal. Certain chemicals will leave the porous surface of the granite exposed. Don’t use acidic products in food preparation since this can eventually damage the granite countertops eventually. Using hot pan residue from the stove burners can leave burnt marks.
Preserves Natural Beauty
Last but, the least, a coat of granite sealant will help your granite look beautiful. A sealer will prevent water, oils or other forms of contaminant to leave behind a dull and lifeless looking countertop.
Is Granite Sealer Necessary?
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.
How to Seal Granite
First, there is a need to have granite sealed prior to using it. This means you should seal this before it is installed. 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.
Second, it is a good idea to apply multiple coats of granite sealer. You should read the product label since it shows just how much time you need to wait in between coatings. Apply the sealer on areas that are usually exposed to getting wet. These are areas adjacent to faucet, sink, and cooktops. Liquids can easily seep into these areas.
Sealing Existing Granite
Third, 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 cheap granite sealer. It would be better to play safe by having these granite tops sealed immediately.
There are things that 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. 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.
If you want your granite countertop to look new for decades you can follow the suggestions given on this care guide. Stick to these easy steps on how to perfectly maintain your granite countertops.
Step 1, calls for cleaning 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.
Step 2, each week, you made need to do a deep cleaning. You need a pH neutral cleaner specifically made for the purpose of cleaning granite countertops. Never use home remedies like bleach, vinegar or any products containing ammonia. These products will destroy the countertop surface.
When to Seal
Step 3, you need to use granite sealer every 6-24 months. Sealing will ensure that stains and germs will not settle into hairline cracks which are common in any natural stone like granite. Installing granite in your kitchen is an investment that will go to waste if you don’t take care of it.
Unused Sealant Shelf Life
Silicone sealant might be durable however, it is not immune ongoing bad. You need to check on the expiration date. Normally, silicone sealant has a shorter life span than other types of sealant. If you leave it unopened for more than 1 year the sealant will harden. Another alternative would be to contact the manufacturer to ensure that you got your facts straight.
Everyone wants a granite countertop, though not all of us can afford them. If you are one of those who can do so, you definitely want to get the most out of your investment. For such a common stone, granite can be quite expensive, but this is mainly due to the fact that it isn’t easy to work with such a hard stone.
Any of the products listed above are likely to do a good job of protecting your investment for years to come. However, a person should never just scoop up the first available product hoping for the best. After spending all that money on a nice stone surface, it really would be silly to omit the last step, which is waterproofing.
Any of these products will allow any piece of granite to be used outdoors without fear of seeing them ruined by the destructive effects of the elements. However, the best all-around granite sealer on my list is probably the Tuff Duck. It’s important that this product doesn’t try to be all things at once. It simply does one job and does it well.