7 Best Granite Sealers of 2023

Photo: TriNova

After laying a granite countertop in your kitchen, it is now important to protect it from stains. This is where a granite sealer comes into action. Many people tend to not apply a granite sealer only to find themselves in a position where they need to completely replace their granite countertop after a few years.

What the granite sealer does is penetrate the pores of the granite and provide a protective layer that repels any stains, oils, and other substances that you normally encounter in the kitchen.

Below you will find a hand-picked selection of some of the best granite sealers for the money. Let’s see which model is worth the purchase.

7 Best Granite Sealers – Review

IMAGE	PRODUCT	FEATURES
	1. Miracle Sealants 511 (Best Overall)	Broad coverage of 1,000 to 4,000 square feet Provides up to 20 years of protection Flexible. Available in different sizes It can be used indoors and outdoors
	2. Black Diamond NG PT (Best for Beginners)	Excellent for beginners Comes in a wide range of sizes It does not emit any bad odors 100% food safe
	3. Granite Gold GG0036 (Works on All Stone Surfaces)	Versatile. Works on any stone surfaces You can purchase it as wipes for more flexibility It does not discolor light-colored granite
	4. TriNova Granite Sealer & Protector (Deep Granite Protection)	Penetrates deeply in the granite pores Easy to use by beginners Cures very quickly
	5. StoneTech BulletProof Sealer (Effective)	Protects your countertop for up to 5 years More coverage than other sealers Produces an immediate result
	6. Supreme Surface All-in-One (Environmentally Safe)	Environmentally safe and biodegradable Versatile. 3-in1 solution No bad odors at all
	7. Weiman Granite & Stone (Fully Waterproof)	Makes any countertop 100% waterproof It can be used both indoors and outdoors Comes with detailed instructions

1. Miracle Sealants 511 – Best Overall Granite Sealer

Photo: Miracle Sealants

The Miracle Sealants 511 is a penetrating type of granite sealer that will penetrate deep into the pores of your granite countertop and provide a long-lasting protection. According to the manufacturer, this granite sealer solution should protect your countertop for up to 20 years, which is a lot!

What we like about this product is that it can be used on granite surfaces located in both the interior and the exterior without degradation over time.

Indeed, this sealer is 100% UV resistant and will not break or chip away even if it comes in direct contact with sunlight. Another aspect that you will appreciate is the coverage.

This product has a very high coverage of around 1,000 to 4,000 square feet which makes it one of the best granite countertop sealers on the market, at least when it comes to coverage area as well as because of its durability.

For flexibility, you can also purchase this granite sealer in different sizes.

The only caveats here is that it can darken a light-colored granite surface. Also, you may need multiple coats to get a good result because it is a bit thin.

Pros:

• The large coverage area of 1,000 to 4,000 square feet per gallon
• Durable and long-lasting. Provides a layer of protection that can last up to 20 years
• Flexible. Available in different sizes offered at different prices
• It can be used both indoors and outdoors

Cons:

• It may make a light color granite darker
• You may need to apply multiple coats to get a satisfactory result

2. Black Diamond NG PT – Best Granite Sealer for Beginners

Photo: Black Diamond

The Black Diamond is one of the most practical as well as efficient and easy to use granite sealers on the market. This is an excellent choice for those who have never used a sealer before because it is extremely easy to apply.

After application, this sealer will be able to provide protection against any type of oil-based or water-based substances that you normally encounter in the kitchen.

But what distinguishes this product from others is that it has almost no odor. Also, this product is fully food safe which means that it will not result in any contamination of food both in the short term and in the long term.

When it comes to flexibility, this product is one of the best that you will find in this granite sealer review. It is offered in different sizes, from a small sized 1 pint spray bottle up to 4 gallons in case you need that much.

If you’re looking for a granite sealer that is extremely easy to apply, we recommend that you consider the Black Diamond granite sealer as your next purchase.

The only issue with this product is that it may leave a white haze on your granite. You will need to wipe it clean frequently during application to prevent it from sticking. Additionally, the instructions lack details.

Pros:

• Beginner friendly. Very easy to use
• Flexible. Comes in a wide range of sizes depending on your need
• Does not emit any bad odor
• 100% food safe

Cons:

• It may leave a white haze on your granite surface if not applied properly
• The instructions are not very detailed

3. Granite Gold GG0036 – Works on All Stone Surfaces

Photo: Granite Gold

The Granite Gold is a professional granite sealer that provide a long-lasting and durable protection to any stone countertop surfaces, including granite.

This product comes as a spray bottle that is extremely easy to apply. Simply spray it on your granite surface, wipe with a dry microfiber cloth and then let it dry for at least 20 minutes. It cannot be easier than that!

Best, this sealer is food safe and also does a good job of not emitting any bad odors. It can safely be used around pets and children, no problem.

But even better, if you do not like the spray applicator, you can also purchase this sealer as sealer wipes. Very practical.

The only problem here is the price, which is a bit high considering what you get.

Also, it needs at least 20 minutes to cure or else the sealer will not offer good protection to your granite.

Pros:

• The application is flexible. Can be purchased as wipes or a spray bottle
• Does not emit bad odors
• Can be used on all types of colors without discoloration

Cons:

• The price could have been more competitive
• The sealer will be ineffective if not allowed to set for at least 20 minutes

4. TriNova Granite Sealer & Protector – Deep Granite Protection

Photo: TriNova

The TriNova uses an advanced polymer-based formula to provide a sheen as well as a permanent protection to your granite countertop. This product will penetrate deep into the pores of your granite and prevent it from getting any type of stains.

For ease of use, this granite sealer is sold in a spray bottle that is extremely easy to apply. What sets this granite sealer apart is definitely its shiny look after application. It reflects light in various directions providing your granite surface with a mirror like finish which is very aesthetically pleasing.

You will not have to wait a long time before this granite sealer sets, as it is one of the fastest sealers on the market in terms of cure time.

Another excellent feature of this granite sealer is that it is food safe and does not emit any bad odor. If you have children or pets around, then this is an excellent product for your need. In fact, other permanent granite sealer reviews online highly rate this product because of this factor.

The only problem here is that it is not very durable. You will need to reapply this sealer occasionally to keep protecting your granite surface.

Pros:

• Deep penetration inside the granite for maximum protection
• Easy to apply by even beginners
• 100% safe for children and pets
• Sets very quickly. Provides a permanent protection

Cons:

• Not the most durable granite sealer on the market

5. StoneTech BulletProof Sealer – Effective Granite Sealer

Photo: StoneTech

This granite sealer from StoneTech penetrate deep into the pores of your granite countertop and provides a layer of protection that can last up to 5 years. This product is a very effective granite sealer that is good value for money.

What we also like is that it provides a decent coverage of 900 square feet which is superior to most granite sealers. It is able to do this because it uses an advanced polymer-based formula that stretches as you wipe, therefore, you will not need to use a lot of sealers to get the desired effect.

Another excellent feature of this product is that it is quite versatile and can be used on any stone surfaces as well.

If you have been sitting on the fence all this time and not sure which granite sealer you need, we highly recommend the BulletProof by StoneTech as it is one of the best granite sealers currently on the market both in terms of its price and its effectiveness.

Pros:

• Very effective granite sealer. Can protect your kitchen countertop up to 5 years
• Excellent coverage of 900 square feet. You get more with less
• Very easy to apply with immediate effect to almost any type of stone base surfaces

Cons:

• May leave a haze on surfaces like quartz
• It will discolor light-colored grout

6. Supreme Surface All-in-One – Environmentally Safe

Photo: Supreme Surface

This granite sealer is specially formulated to be environmentally safe and is fully biodegradable. This product will not pollute the environment at all.

Since this sealer has a neutral pH, it is safe for children and pets as it is non-toxic. Moreover, this spray-on bottle makes it very easy to apply to any granite surface quickly and easily.

Additionally, it does not emit any odors. Another distinction of this sealer is that it is a 3-in-1 solution that not only protects, but also cleans as well as polishes your granite surface.

All in all, the Supreme Surface is quite versatile and value for money. It is an excellent choice for those looking for an environmentally safe sealer that is easy to apply.

The only problem with this product is that it shines a little less than other granite sealers. However, it also costs less so this is understandable.

Pros:

• 3-in-1 solution. Can protect, polish and clean at the same time
• Environmentally safe. Biodegradable
• It does not emit any bad odors

Cons:

• Does not shine as much as other granite sealers

7. Weiman Granite & Stone – Fully Waterproof Sealer

Photo: Weiman

What we like about this Weiman sealer is that it can be used both indoors and outdoors. The reason for this is simple. This sealer uses a polymer-based formula that is resistant to UV light as well as make any stone surface 100% waterproof.

When applied to a granite surface, it will prevent water from entering inside the pores to cause damage. Thus, you get a granite countertop that is able to retain its shine for longer periods.

Also, it comes as a spray that makes it extremely easy to apply to any granite or stone surface.

Once applied, it will do a good job protecting the granite from stains or other oil-based substances as it penetrates deep into the granite pores and provides a long-lasting protection.

The only caveat we have is that this product should only be used on a darker colored granite and not light ones as it may cause discoloration.

However, it still remains a professional granite sealer that will deliver a durable and long-lasting shine to a wide range of surfaces both indoors and outdoors.

Pros:

• Fully waterproof once cured
• Flexible. It can be used indoors and outdoors
• Very easy to apply. Comes with detailed instructions
• Flexible. Works on a wide range of surfaces like granite, marble, quartz, etc.

Cons:

• It may discolor a light-colored granite surface

How to Buy the Best Granite Sealer

Photo: TriNova

1. Types of Granite Sealers

Granite sealers are generally classified into categories. The topical sealer and the penetrating sealer.

Both of those types can be either water-based or a solvent-based sealer and can be used on a wide range of surfaces, including granite, stone, and quartz.

Penetrating sealer: As its name suggests, the penetrating sealer with penetrate deep into the pores of the granite and provide protection against stains and oil from inside the granite countertop.

One big advantage of this type of granite sealer is that it does not change or discolor the surface of the countertop in any way. Therefore, you are left with the original natural look of the granite.

Topical sealer: Unlike the penetrating sealer, the topical sealer remains on the topmost surface of the granite.

It provides a shiny look to the granite as it is able to reflect light in different directions, similar to how a mirror works.

One advantage of the topical sealer is that it may enhance the look of your granite countertop, especially if you have a darker colored granite.

2. Protection type

In addition to the different type of granite sealers, you also have different types of protection in the sealer. Some products are enhancing sealers, which means that they will enhance the look of your granite countertop. This is typical of a topical sealer as we have mentioned above.

On the other hand, there are standard and premium sealers that are some of the best granite sealers and cleaners on the market. They will create a protective layer inside the granite, such that oil-based chemicals and stains will be immediately repelled.

One good thing about this type of protection is that they last for years and will not get removed if you clean your granite countertop with a degreaser or water.

3. Durability

The durability is another extremely important aspect to consider. Obviously, you are applying the granite sealer for it to protect your countertop and you want it to last for years.

Luckily, most manufacturers of granite sealers will tell you on their product descriptions how long they last. One such product is the Miracle Sealants 511 that offer you an impressive 20 years protection.

In any case, a quality granite sealer should last you for years before you need to apply a new coat.

4. Easy to apply

One of the best things about the granite sealer is its ease-of-use. Most granite sealers come with a detailed instruction that will clearly show you how and on what type of surface to apply.

Most of the time, all that you will need to apply the granite sealer is a clean cloth.

Moreover, many manufacturers also ship a buffing kit as well as an application kit with their granite sealer to help you apply more easily on your countertop.

5. Food safety

Lastly, perhaps the most important factor to consider in a granite sealer is if it is food safe or not. Since most granite sealers are used on granite countertops found in the kitchen, it is extremely important that they are food safe.

You should clearly see the labeled food safe or at the very least, a mention whether the granite sealer is food safe or not. If you don’t see any mention, it is better to avoid the product altogether because you never know.

How to Apply a Granite Sealer

Photo: Granite Gold

Step 1 – Choose your Sealer

First and foremost, you need to choose the right type of sealer to apply to your granite countertop. As a general rule, you should always purchase a sealer that has been designed for natural stone, specifically for granite. Otherwise, your granite countertop won’t have the best protection.

Additionally, there are several types on the market, but the best one is usually a carbon resin-based sealer. The carbon resin-based sealer provides a better and more long-lasting protection than other types of sealers.

If you are having difficulty finding a carbon-resin based sealer then a silane-based sealer is the next best thing.

Step 2 – Clean your Granite Countertop

Before applying the granite sealer, you will need to clean your granite countertop to remove grease and stains that may prevent the sealer from entering the pores of the granite. Rub gently but firmly using any variety of degreaser or countertop cleaner to clean.

Step 3 – Read the Instructions and Apply

Every granite sealer has its own application procedure. Luckily, most granite sealers come with a detailed instructions manual that will show you exactly how to apply it.

We recommend you read the instructions for us and then start applying the granite sealer consistently.

If you want to play it safe, you can always choose a small area on your granite countertop and perform a small test to see how it turns out. You can then proceed with the whole countertop if you’re satisfied with the result.

Step 4 – Allow it to Set

After you have applied the granite sealer to your countertop, allow it to set for at least 30 minutes. It is important to wait this amount of time in order to allow the granite sealer to penetrate the pores of the granite and cure properly.

Step 5 – Apply a Secondary Coat

Once the first coat has set for around 30 minutes, you can now apply a secondary coat for an added layer of protection. Not all granite sealers will require a second coat so refer to your instructions manual one more time.

Step 6 – Clean Thoroughly

Once the granite sealer has set, you need to clean it thoroughly to remove any sealer residue on the surface.

Don’t worry about removing the sealer because by now, it has penetrated deep into the granite and all you would be removing is simply the surface layer sealer that remains.

Step 7 – Let it Cure

The final step is to wait at least 48 hours for the granite sealer to cure completely. After 48 hours, you can use a granite polish to give a mirror shine finish to your countertop.

Conclusion              

Clearly, you cannot have a granite kitchen countertop without applying a granite sealer on it. A sealer will offer long-lasting protection as well as make your countertop look more striking.

Granite sealers like the Miracle Sealants 511 not only provides your granite countertop with a sheen, but also protects it against stains for up to 20 years.

And if you only need a small amount of sealer for a small granite countertop, check out the Supreme Surface All-in-One. It’s totally worth it!