Best Exterior Stone Sealer – Reviews & Ultimate Buying Guide 2022

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Natural stone surfaces are among the most popular materials for flooring and countertops because they are long-lasting and low-maintenance and offer a timeless appeal. It is easy for spills and stains to be absorbed into the Stone surface because of its porous nature.

Many different types of stone sealers are available to protect against these types of damage and seal the stone's pores, preventing any other kind of water damage, such as absorption or erosion, from occurring.

These reviews of the top ten stone sealers will aid you in making an informed decision about which product will best protect your investment while also providing a stunning surface.

If you have stone surfaces or stone tiles in your home, you will need to seal them using a stone sealer. When deciding on the kind of stone sealer you want, there are several options to consider, but the most important thing to consider should be how well they will protect your stone's natural appearance.

Is it possible to determine which product is the most effective for sealing natural stone? We've put up this list to make it easier for you to locate the finest one.

If you want to keep the brilliance of your stone surface or stone tile, we recommend that you use one of the best exterior stone sealers on the market to do so.

Best Exterior Stone Sealer
Disclaimer: As An Amazon Associate I Earn From Qualifying Purchases.

Comparison Chart for Best Exterior Stone Sealer

Before making any recommendations for the exterior stone sealer in this post, our staff read through hundreds of customer reviews.

1Lataicrete StoneTech Professional Solvent-Based Heavy Duty Exterior Sealer - 1 Gallon9.4View On Amazon
2All Purpose Concrete, Brick & Stone Sealer9.2View On Amazon
31 Gal. DOMINATOR Stone+ Gloss Clear Acrylic Sealer - Satin Finish Stone Sealer9.2View On Amazon
4StoneTech BulletProof Stone Sealer9.2View On Amazon
5LastiSeal Brick & Masonry Sealer - All Purpose Brick9.2View On Amazon
6Black Diamond Stoneworks Wet Look Natural Stone Sealer Provides Durable Gloss and Protection to: Slate9View On Amazon
7Color Enhancer Sealer for All-Natural Stone and Pavers. Marble9View On Amazon
8STONETECH Heavy Duty Exterior Sealer8.8View On Amazon
9Rain Guard Water Sealers CR-0357 Micro-Seal Ready to USE Sealer Covering Up to 1500 Sq. Ft. on All Masonry Surfaces. 5 Gallon Clear Penetrating Silane and Siloxane Professional Grade Masonry Sealer8.8View On Amazon
10Outdoor Stone Sealer with Stain Guard - for Use on Wide Variety of Stone & Cement - Driveways8.8View On Amazon

1. Lataicrete StoneTech Professional Solvent-Based Heavy Duty Exterior Sealer – 1 Gallon

It is a superior water repellent and stain protector for all interior and exterior stone products, including ceramic tile, marble, limestone, granite, grout, saltillo tile, terrazzo, travertine, sandstone, clay, and other natural stones. It is available in various colors and can be used on any natural stone.

It is safe to use both indoors and outdoors, and although having a very low odor, it can cover an area of up to 1,000 square feet. The product may be used both indoors and outdoors, depending on the environment.

It is weather-resistant, can prevent efflorescence, repels water, and is non-yellowing, making it a great option for building facades and other outdoor surfaces such as driveways and sidewalks. A solvent compliant with FDA rules and is chlorine resistant is also included in the package.

2. All Purpose Concrete

The product gives Water-resistant protection for all external porous masonry and concrete surfaces. Suitable for use on a wide range of natural stone materials, including sandstone, limestone, cultured stone (stone veneer/manufactured stone), granite, and other natural stone materials, as well as concrete and brick.

The product waterproofs masonry and concrete surfaces and protects them from water damage and freezing and thawing damage.

The material is completely porous and does not form a film, allowing trapped moisture to escape and preventing pitting, cracking, and delaminating.

Water-based — cleans off with soap and water, has a low odor, and has a 5-year warranty on vertical concrete and masonry surfaces.

3. 1 Gal. DOMINATOR Stone+ Gloss Clear Acrylic Sealer - Satin Finish Stone Sealer

If the surface temperature is projected to be below 50° for at least 48 hours before and after application, do not apply.
Guards against oil stains and other spills while also offering the highest level of UV protection on various surfaces, including concrete pavers and ornamental concrete.

When using dominator stone+ sealer, you may take comfort in that it has no strong odor and contains low VOCs (Volatile Organic Compounds), as many reviewers have remarked.

This product allows you to get more for your money! The product has an incredible covering rate of 200 – 800 square feet per gallon (usually one application) and provides long-lasting protection.

Applying spray-on adhesive is straightforward when you follow our Quick Start Guide and online how-to videos.

4. StoneTech BulletProof Stone Sealer

One-of-a-kind natural stone sealer was developed to give the greatest possible protection against even the most challenging oil-based and water-based stains on natural stone surfaces.

It can endure up to 5 years in an indoor setting and up to 3 years in an outdoor one, all while retaining the stone’s natural beauty.

Advanced fluoropolymers based on water are employed as a building block in the formulation. It can provide coverage for an area of up to 900 square feet.

The use of honed or textured marble, granite, limestone, travertine, sandstone, saltillo, bluestone, and other natural stone surfaces are all advised as alternatives.

5. LastiSeal Brick & Masonry Sealer – All Purpose Brick

Unparalleled protection and service are provided and guaranteed for the rest of your life against water penetration. The product is water-based, non-toxic, non-flammable, and has no smell. Application is straightforward: spritz, roll, or brush on.

Use it outdoors or inside to protect materials such as masonry, brick, concrete, grout, and even wood, and it will protect them all. In addition to providing bonding and strengthening, it also prevents spalling and dusting while being ecologically benign.

6. Black Diamond Stoneworks Wet Look Natural Stone Sealer Provides Durable Gloss and Protection to: Slate

The sealer has a beautiful wet appearance and is extremely long-lasting when applied. It is best suited for use on surfaces that have exposed aggregate, stamping, painting, or decorative elements, among other things. When it dries, it will not noticeably darken the majority of surfaces. Using abrasives to clean or polish them when working with polished granite or marble surfaces is not recommended. Using this product on surfaces such as spray-on concrete or pavers, slate, or driveways is not recommended.

Aside from masonry, brick warehouse floors, and other nonporous surfaces such as roads and garage floors, it can be used in various other applications. Because of its mild fragrance and its manufacture in the United States and has a Proven Track Record of Success, this product can be dried in as little as an hour.

7. Color Enhancer Sealer for All-Natural Stone and Pavers. Marble

Black Diamond Stoneworks Color Enhancer Sealer enhanced the inherent beauty of pavers, concrete, and natural stones like marble, slate, limestone, and travertine. The surface must be cleaned properly to keep stone surfaces safe and attractive. The Color Enhancer and Sealer firmly penetrate to extract a natural appearance from hard stone surfaces. It also seals off moisture, protecting your stone surfaces.

Rejuvenate your tired travertine living room flooring. Enhance the rustic charm of your limestone walkway—debris and stains on honed granite surfaces. Get compliments on how beautiful your stone and paver walkways look after using this Color Enhancing Sealer. Keep the stones, slabs, and walks in great shape all year.

8. STONETECH Heavy Duty Exterior Sealer

StoneTech Heavy Duty Exterior Sealer protects natural stone and masonry surfaces. Spend at least 24 hours evaluating the product in a separate area. Remove any waxes and coatings and dry for 72 hours at 50-80°F.

Masking and concealing baseboards protect them from overspray. A solvent-resistant paint pad, brush, roller, or low-pressure sprayer may apply the paint. The sealer needs 5-15 minutes to penetrate thick materials before effective.

Assemble a fair distribution of leftovers among participants. A clean, dry cloth can remove excess sealant. Not dry on surfaces. An hour later, reapply to porous or absorbent surfaces as steps 2-3.

A moist cloth may easily remove the remaining sealant. Remove any residue with a clean, white absorbent towel and a white nylon pad. No, not for 4-6 hours!

The remedy takes 24-72 hours. After cleaning, mineral spirits are used to clean. 1 Quart 50-250 5-10 y Stonetech is a stone and quartz technology firm (.946L). This high-tech stone sealer preserves surfaces.

9. Rain Guard Water Sealers CR-0357 Micro-Seal Ready to USE Sealer Covering Up to 1500 Sq. Ft. on All Masonry Surfaces. 5 Gallon Clear Penetrating Silane and Siloxane Professional Grade Masonry Sealer

A crystal-clear finish Using a silane siloxane coating with a micro seal clear finish on your project will help to protect it, restore it, and extend its life. Micro-seal is a composite product made up of the most effective and dependable water repellent chemicals currently available on the construction market.

It is produced by combining silanes and siloxanes, which have been used for decades and are trusted by architects, engineers, and building owners worldwide. For example, with Micro-seal, a unique chemical called Micro-Lok is utilized to form a hydrophobic barrier that is impenetrable to the effects of weathering and other harmful substances such as salt, dirt, freezing temperatures, UV radiation, and wind-driven rain, among other things.

Additionally, this solution will help eliminate efflorescence and lime buildup in the environment. Simple cleaning – soon after application, wipe the surface with soap and water, making sure to remove any overspray from glass and decorative metals. It is available in two distinct formulations: ready-to-use and concentrate, depending on the use.

10. Outdoor Stone Sealer with Stain Guard – for Use on Wide Variety of Stone & Cement – Driveways

High-quality stone sealing technology is now affordable. Stone, concrete, and cement are all excellent materials to use in constructing a home. This product has all possible applications for this product: pool decks and patios, outdoor tables and grilling areas, garage floors, roadways, and sidewalks. Depending on the porosity of the paint, a gallon of paint may cover an area of up to 400 square feet or more, depending on the application.

It may be sprayed with a basic pump-up sprayer in an hour or less. Investing money, time, and effort over the next two to three years will pay off handsomely in the long run. Oil- and stain-resistant water-based outdoor stone sealer is non-toxic and non-hazardous to the environment.

This stone sealer is easy to remove and clean since it is stain-resistant. Weekend’s BBQ will provide you with an opportunity to show off your hard work! Prevent stains from developing on your outdoor stone sealant by using a stain-resistant sealer.

Frequently Asked Questions

Is it necessary to seal natural stone surfaces?

Natural stone is porous, absorbing liquids, food, and microorganisms. As a result, it might be severely damaged, losing its durability and physical beauty. Natural stone should be sealed to prevent damage and maintain beauty, function, and durability. The frequency of sealing natural stone varies depending on the material.

Caverns and etchings are more common in porous stones like limestone and flagstone. Difficult to destroy, less permeable stones like granite and quartz don't need as much sealing.

What is the finest natural stone sealer to use on your floors?

The best exterior stone sealer depends on the stone type. Most natural stone varieties benefit from impregnating sealers. It fills the pores with molecules that resist moisture as it enters the material. Some impregnating sealers also protect against UV radiation and spalling.

Is it necessary to seal flagstone?

Flagstone is a pore-filled natural stone. As a result, it collects moisture and is prone to harm. Sealing flagstone prevents deterioration and maintains its beauty and longevity.

A sealer will fill up the pores, strengthening and waterproofing them. Avoid applying a glossy sealant, as it will detract from the natural beauty of the flagstone. This natural stone requires a penetrating acrylic sealer with a matte finish.

What is the composition of stone sealer?

Stone sealers are classified into three categories, each of which has a unique combination of chemicals. Natural wax, polyurethane, and/or acrylic are the most common materials used in topical sealers. Fluoropolymers, silicones, and siloxanes are used in penetrating sealers. Impregnating sealers are composed of silanes or silanes that have been changed.

Do you use a sealant on stacked stone?

Stack stone should be sealed the same way as the natural stone used in other applications. Water, chipping, cracking, and other types of damage are all possible with the material used to produce a stacked stone look, which is often quite porous. In addition to boosting the stone's durability and aesthetic, using a sealer will reinforce the stone itself.

Using an impregnating sealer, which is a sort of penetrating sealer, is advised for stacked stone because it penetrates the material completely and ties the pores together, providing a water-tight barrier and increasing the overall longevity of the material.

How to Choose Best Exterior Stone Sealer

If you're searching for the best exterior stone sealer to buy, there are a few things you should consider.


The stone sealer must be long-lasting so that it can protect your stone surface from water stains, salt, and grime for many years while also preventing the stone surface from being damaged. Using internet reviews of various items, you can determine whether or not this is the case.

Stone Sealers with a Unique Design

Designer stone sealers are more aesthetically pleasing than the typical matte finish stone sealers.

These give your stone surface a refined and contemporary appearance, and you should select one based on the style you want to achieve in your house or place of work.

Cheap Stone Sealers Aren't Always Good

Purchases of lower-priced stone sealers may not last as long as those of higher-priced stone sealers. Some businesses save expenses by putting chemicals in their product to decrease prices without affecting quality.

As a result, spending a little more money on a high-quality product that will last is preferable rather than purchasing a low-cost one every year.

While an average sealer will normally last a year or two, it is important to verify how frequently individuals change their sealers in reviews to determine whether or not the product is worth the money.


When it comes to sealing stone surfaces, the sealer should not include any dangerous chemicals that might hurt the stone surfaces as well as the persons who are applying the sealer to them.

Low VOC Stone Sealers

Because these stone sealers should be applied to surfaces both inside and outdoors, it is preferable to select a low-VOC sealer that will not destroy the textures of your stone while also being safe for your health.

As a result, you must examine the labels of various items before purchasing one for yourself to determine whether or not they include dangerous substances.


If the sealer is thicker on the stone surface, it will remain longer on the surface and will protect against water stains, dirt, and dust accumulation, as well as dangerous chemicals from harming the stone surface.

Ease Of Use

When choosing a sealer, make sure it is simple to use so that you can apply one layer to your stone surface and preserve it against damage over a long period without spending too much time on it.

Packaged Extras

Most reputable companies provide their clients with accessories like brushes and rollers and their goods to make the application procedure more convenient. If this is not included in the stone sealer package you are purchasing, you may purchase one separately.

After applying stone sealer, it is quite simple to clean up spills and messes.

It would be best not to spend a lot of time and effort cleaning up after spilling any stone sealer when applying it to your solid stone surfaces. Otherwise, the situation will get frustrating very quickly. As a result, you must choose a stone sealer that is simple to wipe up spills using the cleaning solutions provided by the manufacturer.


Selecting a sealer with a pleasant aroma is critical to prevent the smell of old goods irritating people in your home or company and the unpleasant smell of low-quality products remaining around in your house or business after the sealer has been applied.


To avoid damaging surfaces where food is prepared and eaten, be certain that the sealant has a water-based formula. Also important is that it creates a natural aspect that improves the appearance of outdoor stone surfaces by not having any gloss on them.

It should also be composed of natural materials to prevent the introduction of dangerous chemicals into your home or workplace environment. It should be safe to use on several kinds of solid stone surfaces, such as marble, granite, and travertine, among other things.

In addition to protecting against cracking and discoloration, the sealer should preserve outdoor surfaces resistant to staining and efflorescence, among other things. After application, the sealer should not leave any brush strokes behind or exacerbate the condition of the surface being sealed.

The Last Words

If you have marble surfaces in your home or company, this purchasing guide will give you all of the information you need to make an informed decision on which external stone sealer to use. However, keep in mind that even the greatest stone sealer will have its own set of limits due to the nature of the material.

It will give some level of protection, but in other cases, no stone sealer will provide enough protection. This is especially true for some kinds of natural stones, such as marble and granite. Marble, limestone, and travertine are acid-sensitive stones, and if acidic liquids are spilled on them or if an acidic cleaning chemical is used on them, the stone will become etching etched.

Hi there, technology lovers and DIY enthusiasts! My name is Alvin, and I am an admin for this blog. I am a techno-geek and a DIY enthusiast, making this blog the right place to share all my knowledge with you to make your life easier in terms of technology.

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