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Best Brick & Masonry Sealer 2020 – Reviews & Top Picks

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Best Brick and Masonry SealerIf you have beautiful masonry and stonework on your property, you know the struggle to keep it looking good. Next to throwing up tarps every time it rains, the best option is to protect the surface with a sealer. Many people do not realize how much a sealer can help, so they forgo the option.

Consider this though, a stone walkway can start to show wear after one bad winter season. This is especially true if you live in an area where there is a lot of precipitation and cold temperatures. The water seeps into the masonry and weakens the integrity from the inside out. That is not all, however. UV rays, salt damage, mold, mildew, and many other factors can damage the appearance of the stone and brick.

Masonry sealers are a great investment if you know which one is right for you. To lend a helping hand, we have reviewed the 10 best masonry and stone sealers on the market. Take a look below to get the details on the application process, finish, formula, and toxicity level. We will also share square footage and some shopping tips as well!

A Quick Comparison Of Our Favorites

ModelPriceCoverageEditor Rating
LastiSeal 143
small LastiSeal 143Best Overall

Check Price
600 sq. ft.4.85/5
Black Diamond Stoneworks 679773003916
small Black Diamond Stoneworks 679773003916Best Value

Check Price
600 sq. ft.4.70/5
Foundation Armor  SX5000
small Foundation Armor  SX5000Premium Choice

Check Price
100 sq. ft.4.65/5
Dry Treat Intensifia SG B075VFPN6Z
small Dry Treat Intensifia SG B075VFPN6Z

Check Price
200 sq. ft.4.35/5
KILZ L390201
small KILZ L390201

Check Price
400 sq. ft.4.15/5

The 10 Best Brick & Masonry Sealers – 2020

1. LastiSeal 143 Brick & Masonry Sealer – Best Overall

LastiSeal 143

First up is the LastiSeal sealer that has seals concrete, masonry, grout, and wood. This is an eco-friendly option that is non-toxic and non-flammable. You can use this for interior and exterior work to prevent freezing/thawing damage, water stains, cracking, spalling, etc.

This formula is water-based and can be applied with either a sprayer, roller, or paintbrush. You get 2.5-gallons that will cover up to 250 square feet of space. With this option, your masonry will have protection from UV, salt, water, and other damaging materials. Plus, you won’t slip and it has an ultra-low VOC.

  • Various materials
  • Interior/exterior use
  • Water-based
  • Great protection
  • Nontoxic and non-flammable
  • Non-slippery
  • None come to mind

2. Black Diamond Stoneworks Stone Sealer – Best Value

Black Diamond Stoneworks 679773003916

If you are in the market for a less affordable option, the Black Diamond is the way to go. This option gives you protection from water, UV, chemicals, and other damaging problems. This is a great option if you want to protect any decorative stonework, however, it can not be used on polished granite or marble.

This formula is non-yellowing and will not darken the surface of the masonry. You can easily apply this brand with a sprayer, paint roller, or a brush. It is VOC compliant and will cover 5002sqft giving the stone an additional shine.

While this can be used for interior and exterior work. The fumes can be harder to work with and it is toxic and flammable. Also, keep in mind that this is not recommended for use where there could be salt laydown. Overall, this is the best brick & masonry sealer for the money.

  • Great for decorative stone
  • Will Not darken surface
  • Great protection
  • VOC compliant
  • Interior and exterior work
  • Easy to apply
  • Not for polished granite or marble
  • Toxic and flammable

3.  Foundation Armor Masonry Sealer– Premium Choice

Foundation Armor  SX5000

Moving on, we have a slightly more expensive option that is great for concrete and brick surfaces. This formula will protect your surfaces from freeze/thaw damage, layers of salt, water stains, and much more.

This brand will penetrate the substrate up to 2 inches for solid protection. You can apply it with a roller or sprayer, and it comes in a 5-gallon bucket. You will get 200 square feet of coverage per gallon, as well.

Unfortunately, this is a solvent-based mixture that is toxic and flammable. That being said, mold mildew, UV rays are not going to be a problem, and it won’t yellow the surface. You can use this for interior and exterior work, but you will need to use two coats on porous materials. Based on the various substrates and projects, this is the premium choice.

  • Great protection
  • Easy to apply
  • Multiple surfaces
  • Interior/exterior
  • Penetrates 2 inches
  • Needs two coats
  • Toxic and flammable

4. Dry Treat Intensifia US Enhancer & Sealer

Dry Treat Intensifia SG B075VFPN6Z

The next option is a color enhancer that is best used on patio pavement and other walkways. This formula can be used on residential and commercial properties and will protect the surface from water damage and oil stains.

Dry Treat is a great option for preventing yellowing, cracking, and peeling, as well as penetrating the surface for water intrusion and oil marks. However, this is not a good formula for salt-treated areas. You can also use this product on a variety of surfaces including horizontal and vertical substrates.

Depending on the surface, one quart of fluid will cover 150 square feet. To apply, you can use a brush, roller, or sprayer. This brand also doesn’t have a sheen, but it will darken the surface of the stone. Also, it is important to note that this option is toxic and flammable, and will create an odor, so a well-ventilated space is recommended for indoor use.

  • Color enhancer
  • Great protection
  • Commercial or residential properties
  • Horizontal & vertical surfaces
  • Easy to apply
  • Toxic & flammable
  • Strong odor
  • No salt-treated areas

5. KILZ L390201 Brick and Masonry Sealer

KILZ L390201

This next brand is typically known for its stain-hiding abilities yet in this case, it is known for its sealing ability. The formula is a high-gloss acrylic-based sheen great for protecting the surface for water damage, yellowing, spalling, cracking, etc., as well as preventing stains.

You can use this product on concrete, stucco, tile, brick, and several other substrates. While you cannot thin this sealer, you will get between 250 and 400 square feet of coverage, depending on the porousness of the surface. This option can be applied with a brush, roller, or sprayer; however, a sprayer is recommended for best use.

Meant for commercial and residential properties, this brand has a strong odor as well as being toxic and flammable. You also want to apply it to horizontal surfaces only. If you are looking to enhance your stone and masonry walkways, patios, etc., this is a good choice.

  • Great coverage
  • High-gloss sheen
  • Good coverage area
  • Easy application
  • Toxic
  • Flammable
  • Horizontal surfaces only

6. A-Tech Masonry & Brick Sealer

A-Tech AT-Y2J14115

The A-Tech sealer is a natural finish with no-gloss sealer that has a low VOC and repels water to keep brick and stone safe from damage. The silane/siloxane water-based formula penetrates the surface and the joints to keep wind-driven rain at bay.

This option is also non-toxic and 100 percent odorless. You can apply the 5-gallon bucket with a sprayer, brush, or paint roller, however, a sprayer is recommended as the liquid can be difficult to spread. This is a great option for stopping efflorescence but is not meant to be used in areas where there could be oil spills or salt damage.

On the other hand, this option is UV resistant and easy to clean. You get 100 to 150 square feet per gallon and it can be used on commercial and residential surfaces in either horizontal or vertical applications.

  • Great protection from water damage
  • Low VOC
  • Non-toxic and no odor
  • Commercial and residential
  • Harder to apply
  • Not meant for salt or oil protection
  • Smaller coverage area

7. StoneTech Heavy Duty Exterior Sealer

StoneTech WBS12-32

Moving forward, we have a solvent-based sealer that is great for protecting your masonry material from water damage, stains, and efflorescence. This is a heavy-duty option that can be used for interior or exterior work, yet it is better suited for exterior work on brick and stone substrates.

The quart bottle provides up to 250 square feet of coverage, yet it is more difficult to apply. A garden sprayer is recommended along with a roller to spread the liquid evenly. You also want to spray away from vertical surfaces, as this formula tends to run.

StoneTech WBS12-32 gives a natural finish without a sheen. It is flammable and toxic, although the odor is lower for a solvent-based formula. Also, keep in mind that two coats are recommended, and the temperature needs to be above 55 degrees for the best results.

  • Good coverage
  • Good protection
  • Natural Finish
  • Low odor for solvent
  • Difficult to apply
  • Horizontal and exterior use only
  • Toxic and flammable
  • Temperature needs to be 50 degrees

8. Eco Advance Concrete/Masonry Sealer

Eco Advance EACON640PD

The number eight spot goes to the Eco Advance, an eco-friendly, non-toxic, non-flammable formula. This commercial-grade option also has low VOC, low odor, and has a cure time of 2 hours. Important to note, however; although this is commercial grade, residential application is recommended.

That being said, this product will need to be applied with a sprayer. While it doesn’t stain and is safe for use around grass and other plants, this can be harder to work with as the consistency is hard to spread. You can use this to protect concrete, stone, brick, and stucco from water damage.

This option is a siloxane water-based formula and is recommended for warmer climate areas that will not need salt applications and will not have freeze/ thaw damage. The 5-gallon bucket will seal up to 250 square feet depending on the substrate and has a natural finish that can darken if the application is too heavy.

  • Eco-firendly
  • Quick cure time
  • Non-toxic
  • Residential only
  • Difficult to apply
  • Can darken substrate
  • Good for warm climates

9. RadonSeal DryWay Water-Repellent Concrete Sealer


This product is another eco-friendly option that is meant to protect concrete or stone surfaces from water damage, salt stains, freeze/thaw, mold, and mildew. Unfortunately, this formula tends to leave a film and will yellow after time. The protection is okay for average use. Any surfaces in severe weather areas will have a harder time standing up to consistent rain and cold.

The 5-gallon bucket should be applied with a hand sprayer and roller to evenly apply the material of level horizontal surfaces only. The silane/siloxane formula will only cover 100 square feet for all substrates except untreated concrete, making this a less cost-efficient option.

Also, be aware that this formula is not meant to darken not does it have a sheen, but it may change the appearance of the substrate. All in all, this is the best option if you are sealing a new driveway in a warmer climate area.

  • Eco-friendly
  • Good for driveways
  • Low odor
  • Harder to apply
  • Can darken appearance
  • Not great coverage on stone
  • Limited protection
  • Not cost-efficient

10. SEAL-ONCE Nano+Poly Concrete & Masonry Sealer


Coming in last place is the SEAL-ONCE protector that is a water-based polyurethane formula in a clear matte finish. Like the option above, however, this product tends to change the appearance of the substrate, and can also be quite slippery when wet.

This product is used to protect the surface from water, mold, and decay damage to concrete and masonry surfaces. Unfortunately, several coats are required to prevent even minor water damage. You will also need a paint sprayer to apply this product, although it is eco-friendly. That being said, the odor from the polyurethane can be quite strong.

Finally, the one-gallon bucket covers 60 to 80 square feet and tends to leave a film behind. All in all, this is the lowest ranking product on our list. For the best sealing protection, you are better off choosing one of the options above.

  • Eco-friendly
  • Requires a sprayer
  • Changes appearance of surface
  • Strong odor
  • Low protection
  • Leaves a film
  • Low coverage

Buyer’s Guide

Important Things To Consider Before Buying

There are a few things to keep in mind when purchasing a sealer for your stone surfaces. The first issue is whether you will be applying the formula on the interior or exterior substrate. When it comes to interior work, you want to make sure the product is specified for indoor use.

Secondly, you want to look at toxicity, odor level, and other similar features. In general, water-based products are kinder on the environment and more likely to be eco-friendly, but not always. Some water-based polyurethane mixtures, for example, can still be toxic. Above all, make sure you are in a well-ventilated area when applying these options.

Another key factor to consider is the VOC level. VOCs are volatile organic compounds, and they can be detrimental to your health. VOCs are regulated by law. The lower the VOC level, the fewer fumes, and toxicity levels there will be.

Once you have the safety features down pat, you can look into other factors such as protection power. Again, if you live in a colder climate, you want to make sure you are choosing a product that will protect from salt damage and freeze/thaw issues.

You also want to check the application process and square footage along with drying time. Also, consider whether you want a gloss finish or a more natural coverage. All of this information will help you choose the best sealer for your needs. Above all though, make sure you purchase enough to finish the project. Waiting to apply the rest can cause a difference in appearance.


If you are ready to seal and protect your masonry and stone surfaces, your best bet is our number one choice. The LastiSeal 143 Brick & Masonry Sealer will be able to add a layer of protection against water, UV, and any other damage that may occur. If you prefer a more affordable option, the Black Diamond Stoneworks 679773003916 Stone Sealer is the best bang for the buck.

If you have more concrete than stone or your property, take a look at the best concrete sealers available. You will be able to find all the information you need to seal and protect your concrete surfaces. Otherwise, we hope you have enjoyed this review of the best brick and masonry sealers.

Featured Image Credit By: A-Tech Masonry & Brick Sealer, amazon

About the Author Adam Harris

Hi there! My name is Adam and I write for HealthyHandyman. I have a great passion for writing about everything related to tools, home improvement, and DIY. In my spare time, I'm either fishing, playing the guitar, or spending quality time with my beloved wife. You'll also often find me in my workshop working on some new project!