Granite Sealer

Best Granite Sealer Reviews – Buyer Guide 2021

Today, many kitchen countertops and other surfaces are made of a granite stone. This stone brings great aesthetics in our kitchens and bathrooms or even in business premises.

But for it to last long and appear elegant throughout, it needs to be maintained at a high level.

This is not just simply by cleaning it regularly but as well ensuring that it’s prevented from things like dirt, oil and water.

For this reason, a sealant was discovered to prolong the lives of these porous stones that tend to absorb substances that land on them.

The only issue that comes up when picking a sealant for your floor or countertop is that there are a good number of them in the market and choosing the best is somehow difficult.

With such a notion, we decided to set out on a journey of discovering the best granite sealer and we ended creating this review.

Best Granite Sealer

Before we created this information, we were out of the blues like you and almost landed on an inferior brand.

We’ve assembled the best data that can be of great help to you in your quest of discovering a quality granite sealant. They are of different types and manufacturers as well.

Also, they contain different substances which have their own purposes. That’s why you need to know which one is best for your needs by reading further and learning more about these sealants.

From knowing how to test the porosity of the stone to identifying crucial factors in choosing a sealant of your choice, get to know all about this below.

Type of granite sealers

If you want to start sealing your granite surface, here are few different types of granite sealers that you have to know about. This will make things easier for you by choosing one that meets your requirements. These are as follows:

  • Coatings

Besides protecting the granite surface from dirt, oils and water, this sealer offer your surface with a glossy finish that makes the floor to be smooth as well. This type of sealer wears off quickly and needs to be applied more often than the other two types that we are going to discuss further below.

  • Penetrating sealers

This is one of the mostly used types of sealer due to its efficient properties. Just like it name suggests, it penetrates through the stone without leaving any glossiness on top. It prevents any form of dirt, oil or water substances from entering into the granite. It lasts longer than the other two on types. It can be further categorized into two as standard and premium penetrator. Standard penetrators prevent dirt, drinks and other kinds of debris from penetrating into stone. It is not ideal for sealing your floor in a busy area or in the kitchen. The premium penetrating sealer is the best as it prevents oil based and water base substances from entering the stone.

  • Enhancing sealers

Unlike the two first types of sealers, this one is a bit different as it does more than just sealing the stone. It as well betters and deepens the natural colors of the stone. It makes the stone to be good looking without having a glossy finish. Some of them are water based while others can protect from oil substances too.

How to determine whether to seal your granite surface or not – perform a water drop test

For you to begin sealing your stone be it of granite, marble or any other kind, you need to determine if it needs sealing or not. Most of the stones that are used in beautification our kitchen counters and floors are very porous and will absorb liquids they come in contact with. Such stones include; marble and granite. For you to carry out this test here are the guidelines to follow;

  • Pour some water on the stone countertop
  • If it isn’t absorbs within 5 minutes then you can walk away as the stone may be well sealed or not porous.
  • But if it absorbs water within the next 5 minutes, then you need to seal as its either extremely porous or not sealed well.
  • And if the water doesn’t stay on top of the countertop for some minutes but gets absorbed right away, then you need to apply sealant right away.

Factors to consider when picking a granite sealer

Now that we’ve taken a look at the different granite sealers on the market, it’s high time you get to understand what to consider when buying such a sealant. The factors that we are about to discuss will help you get a sealant that will for you flooring needs.

Simplicity of application – everyone wants to apply a sealant with much ease and fast. That’s why, getting a sealant that is very easy to apply is very crucial. Some sealants have stringent instructions to follow when applying thus will take you a lot of time.

Odor – not every granite sealant out there is friendly to the environment. There are those that will have a bad smell after being applied and should be avoided when you have children in your home. Mostly, oil based granite sealers tend to have odors while water based does not produce nay smell. Therefore, you can opt for the water-based sealant in places like kitchens as they don’t have a smell.

Types of stone – some stones are more porous than others. Before you start applying the sealant, know the porosity and density of the stone so that you can apply the right sealant. This is where the water drop test should be applied to determine the density and porosity of the stone.

Performance of the sealer – always consider choosing the best quality. There are various types of sealants and knowing which one is the best is very important. They contain different ingredients and you should go for the best. Some pose as the best but they don’t perform as they advertise to be.

Safety of the sealer – how safe is the sealant? Not all sealants are safe to use as others are very smell and not favorable to use in food areas. Ensure that the sealant you use is not hazardous at all or toxic. Look out for the ingredients or compounds contained in the sealant before acquiring it.

How long does the sealer last – most of the people overlook this feature but it’s very crucial. This is because after applying the sealant, you might need sooner than you thought. A good number of the granite sealants last around 5 years or less with others going up to 15 years. Pick a quality sealants that last long and can be used if need arises.

Key purpose of the sealer – not all sealants play the same role. Some are meant for making the floor to appear shiny while others make it look beautiful. Others are created to prevent water based substances from entering the granite while some are used to prevent water based substances. Pick a sealer that serves your needs.

Quantity of the product – every sealant is packaged differently. Determine if the sealant you intend to buy will cover the floor area you want to apply it. Most of them cover an area of 800 sq ft or more. If you want to apply to a large area, ensure it will be enough so that you don’t leave the job unfinished.

Customer reviews – look at various customer reviews and see what they have commented or said about a particular sealant. Here, you can easily know which ones are up to the task and which ones won’t get the job done. In addition, you will get to know some of the pros and cons of the sealant you want to pick.

Brand – have you been using a sealant that hasn’t lived up to its expectations? Many people fall victims of not knowing how to differentiate between the best sealants from the rest. This is because they’ve no idea or it’s their first time purchasing. Consider picking from the top brands such as: Tuff duck, Black diamond, Granite gold, Stone tech, Stone care, and Miracle, among others. Pick from one of these if you want the best sealant.

Price – avoid going to low when buying a granite sealant as there are great averagely priced products. It’s not a must you buy the highly priced sealants as they aren’t always the best. Simply come up with a reasonable budget to work with.

The best granite sealer reviews

Finding the best granite sealer has never been easy. This is because there are several quality products out there that perform the same role. As well others differ slightly in ingredients but still perform well. Our panel dedicated itself to months of great research and they managed to come up with some of the top granite sealants reviews. These perform well in their respective area s and are greatly priced.

Black Diamond Stoneworks granite sealer

This is a powerful sealant that is water based. This means that it’s safe to sue on your kitchen counter or wherever you please to seal your granite surface. In addition, it’s non-toxic and non-corrosive. This granite sealer is easy to use by applying it and just wiping. Unlike other sealers, its odor is very low and no irritating to the nose. If you want to protect your granite surface from oil, water, coffee, grease or even wine, get this sealer for longevity.

Main features:

  • Non-toxic
  • Water based
  • Granite sealer
  • Low odor


  • It doesn’t produce any smell during or after application
  • It is water based and great for use even on the kitchen counter
  • It is non-toxic thus good for the environment too
  • Can be used for various types of stones such as granite, marble, limestone, etc.

Stone Tech Professional bulletproof stone sealer

Stone Tech professional is among the top brands when it comes to sealants. Te stone tech professional granite sealer is very powerful in that it secures the stone from getting in contact with things like water, coffee, and oil. It can be applied on different types or stones and makes them last long. It can be applied with much ease and covers a wide area of up to 100 square feet. With low odor emission when applied, get to use this sealant on your kitchen counter or in the bathroom floor.

Main features:

  • Water based fluoropolymers
  • Covers up to 100 sq ft
  • Advanced penetrating microbond protection
  • Emits very low odor


  • This prevents oil substances and water substances from entering into the granite stone
  • It emits very low odor making it good for use in any place
  • It covers a wide area of up to 100 sq ft
  • It is very easy to apply

Tuff Duck, grout and marble sealer 22 z stone tile

This is one of the best water based sealants on the market. If you’ve porous granite stone counter that needs to be sealed immediately, opt for this sealant as it will do the job very well for you. It is non-acidic and penetrates through your stone well. It prevents substances like oil and water from penetrating through your stone for longevity. Consider buying this sealant for a better and long lasting counter or floor.

Main features:

  • Non-acidic formula
  • Penetrating sealant
  • Offers protection of 5 years to interior and 3 years exterior
  • Water based sealant


  • Functions well on different types of stones such as granite, limestone, marble, grout etc.
  • It is water based and can be used in areas of food like on the kitchen counter
  • It seals the stones excellently preventing substances like oil, and water from penetrating into it.

Granite Gold GG0036 Granite gold 24-o sealer, preserver and protectant

This sealer is created specifically for granite stones. The granite gold GG0036 is an outstanding sealer with great properties that help in preventing oils, dirt or water from penetrating into the granite stone. It is non-toxic and produces very little odor which is not dangerous. In addition, it is very easy to apply and has no ammonia or phosphates too. Buy this sealant if you want the best water based granite sealer.

Main features:

  • No phosphates or ammonia
  • Non-toxic, biodegradable
  • Easy to apply formula
  • Low odor that are not harmful


  • It is very easy to use this sealant to protect your stone from substances like dirt or water
  • It is has less odor which is not harmful
  • It is non-toxic and can be applied in almost all areas
  • It works best when used on granite stones

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