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What is the Best Concrete Sealer?

Best Concrete SealersConcrete comes in many different types and substrates that can be found both for both interior and exterior applications. There are Concrete Driveways, Vertical Brick Walls, Brick Paver Patios, Basement Floors, etc. Concrete is very porous and can be prone to degradation from Water, Ultra Violet Radiation, wear and tear, etc. By sealing or waterproofing your concrete surface you will add life and protection to your surface.

So what is the Best Concrete Sealer?

The answer to that is dependent on why you are sealing, what surface  you are trying to seal, and what your final expectations are.

There are many different types of sealers for concrete and masonry surfaces. Concrete sealers come in both water based and solvent based formulas. They come in generic formulas for all surfaces or formulas that are specific to the surface you are applying to. For example, you would want a Brick Paver Sealer for a Paver Patio and a Chimney Sealant for you Chimney but you could use MasonrySaver All Purpose Water Repellent for both.

So why seal your concrete or brick? The main reasons to seal and waterproof your concrete are:

1. Preventing hairline cracks due to water expansion during freeze/that cycles.

2. Prevent water penetration and seepage of water through walls and foundations.

3. Enhance the appearance by adding a gloss or darkening the overall color.

4. Prevent damage from deicing salts during winter months.

5. Provide protection from “Pitting” or “Spalling” or deterioration of the concrete causing chunks of the concrete to separate from the concrete structure.

Once we understand the surface we are treating and what the reasons we are treating the surface for, then we can narrow down what would be the best concrete sealer to use.

Here is an example of concrete surface in Florida (answers in Red):

1. What State do you live in? Florida

2. Interior or Exterior concrete surface? Exterior

3. Vertical or Horizontal application? Horizontal

4. Change or enhance appearance (gloss or wet look) or no change of appearance? Wet Look/Gloss

5. Type of surface examples: Driveway, Paver Patio, Brick Wall, etc Paver Driveway

Based on the answers you would want a sealer that is specific to brick pavers, gives excellent UV resistance since it is in Florida, while adding a shiny enhanced look. Based on these questions you would want to look at:

  • SuperSeal25
  • SuperSeal30
  • MasonrySaver Paver Sealer.

Feel free to answer these questions for help choosing the “the best concrete sealers for me”. Just post a comment below and based on your answers, we will suggest a couple of different options of what sealant or water repellent you should use:

Please include any additional information that would be useful!

Make Sure to Include Answers to the 5 Questions in Comment Area Below!


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1,220 Responses to “What is the Best Concrete Sealer?”

  1. Donna says:

    Where can I buy a water-based polyurethane interior floor concrete sealer? I am in souther california. I have ground and cleaned the floor and am ready to seal. Home Depot has an acrylic sealer "Clear- Seal" has any one used it or should I keep searching for the poly?

  2. Organizer says:

    1. New York
    2. Interior
    3. Horizontal
    4. I am ambivalent about change in appearance. I just want something that's easier to clean and can smooth out the roughness of the concrete floor
    5. Basement Floor

    • Concrete Sealer Help says:

      Try a water based epoxy clear product for a filming sealer on a basement floor. Does not matter the brand.

      • Organizer says:

        My floor was not finished in a very smooth fashion. Some of the different in level may be up to a 1/4 inch – that's the roughness I'm talking about. Will this water based epoxy cover that? Or do I need to sand it down some? I really don't want to have to sand it! I want to find a product that can just soak into all of the lower parts and form a hard, penetrating seal!

        • Concrete Sealer Help says:

          You will not be able to fill this with an epoxy. Does not work that way. Nothing will fill that large of a void and level.

  3. Grandpa Marty says:

    Ohio (Cleveland snow belt)
    Exterior
    Horizontal
    No appearance change
    Broomed driveway

    Also want to do a covered front porch with a slight grease stain from a smoker overflow

    And a garage with smooth concrete that is very slippery in the snow

    Everything is 2 years old

  4. tom says:

    Ohio
    exterior
    vertical
    darkened
    concrete statuary

  5. Darrell Harris says:

    1 Missouri
    2 exterior
    3 vertical
    4 no change don't Matter
    5 concrete buried wall

  6. Ashley says:

    Kansas
    Exterior
    Mainly Horizontal – have steps
    Want to enhance the colored cement in my patio.
    Patio with lots of mud traffic.

  7. klaliotis says:

    I need help finding a sealer for concrete countertops on the concrete BBQ .
    1. California
    2. Exterior
    3.Horizontal
    4.wet look/gloss
    5. concrete counter on bbq

  8. Chris says:

    Austin, Texas
    Exterior
    Horizontal
    No appearance change
    Poured concrete walkway squares ranging from 3'x5' to 5'x10'

  9. Sam says:

    I live in Perth western Australia and want to seal my interior cement.

    I think the process is
    1 clean floor of debris
    2 acid etch the surface
    3 seal the floor

    I am not sure of the etcher to use or the sealer that is best for high traffic and furniture I think it is a polyurathain but would love your advice

    Thank you in advance
    Sam

    my 5 answers are
    Perth western Australia
    interior
    High gloss
    horizontal
    poured concrete slab

    • Concrete Sealer Help says:

      Sam, sorry but we have no idea as to what you can buy there. Look for a interior gloss sealer concrete that contains a modified urethane. Not a poly.

  10. John says:

    San Rafael, California
    Exterior
    Horizontal
    No change to surface
    Poured, stamped concrete patio

  11. Tom Johnson says:

    A walk out Patio in Northern Indiana, Exterior, covered by a deck above but the deck is not water proof so the concrete gets wet. The concrete is about 50 years old, in good shape. It has never had anything done to the surface except power washed. We are going to have it ground smooth to expose the small stones. What is the 'Best' sealer to use after the grinding? There is one other factor involved, There is a joint between the house slab and the pored patio. The joint is about 3 feet from the house. This joint has widened over the years to about 1/2 inch. We want to fill it with a product that will absorb the give and take of a real expansion joint, but in fact seal the crack. Can you suggest a product for this application. Thanking You

    • Concrete Sealer Help says:

      Any quality joint sealer that is expandable should work. As for sealer, try SuperSeal-M water repellent.

  12. Tony Khuri says:

    Question-1: What should I use to seal the concrete floor of a balustrade that sits on top of a bay window? All I'm interested in is to stop rain water from seeping thru the concrete floor of the balustrade right into the inside of the house. The house is in the Cleveland area, and that side of the house gets the most sun, as well as the brunt of a storm when it rains.

    Question-2: Is is a good idea to use sealants on outside brick walls of a house? Some masons say it's not, because then over time moisture builds up and gets trapped in/around the bricks causing them to "explode" and shatter at some point. What's your opinion on this?

    Thank you kindly.

  13. James Drummond says:

    We are in Kentucky
    We want it for Interior
    Horizontal floor
    Gloss or durable surface
    It is a basement floor were we currently get alot of dust from the concrete surface being ground up by shoes, toys, skates. etc. We want to seal floor and minimize dust generation.

    • Concrete Sealer Help says:

      Try an interior water based epoxy so it has a low odor. Get a clear coating. Any brand really should work since it is indoors.

  14. Ken Francis says:

    North Idaho
    Exterior
    Horizontal
    No change in appearance
    2-3 year old poured concrete edge ( 20"x60') added to existing concrete patio. South facing & subject to sprinkling system.

  15. Tom hale says:

    1) Tennessee
    2) exterior
    3) horizontal
    4) slight wet look/gloss
    5) exposed aggregate pool patio

  16. Kathy Armstrong says:

    Michigan
    Exterior concrete patio. 18 x30 feet poured 8 days ago raised 36 inches on brickface walls.
    Faces north. Full sun.
    Horizontal application.

    Also have brick stairs at front entry to home constructed two years ago that need protection from excess water from rain and snow/ice

  17. Sue says:

    Iowa
    Exterior
    Horizontal
    Wet look/ gloss if it dresses up the cement look
    New concrete in last year:
    1)Upper deck on south 2) walk out patio facing south
    3) foyer on Northside 4) driveway on north

    • Concrete Sealer Help says:

      A wet look sealer will not look good on regular poured concrete. Try a penetrating water repellent like Masonry Saver Heavy Duty Sealer.

  18. Sam says:

    I have just painted my concrete basement floor this week. I have three old dogs that are extremely likely to pee down there every night.

    My first goal is to make the floor as water proof as possible. This will maximize the amount of liquid running off into the drain and minimize pee soaking into the floor.

    My second goal is to make the floor as easy to clean as possible.

    I have read that a top coat of concrete sealer may help achieve both of these. Is this the case? If so what product would be best? Thanks for your great website! -Sam

    Wisconsin
    Interior
    Horizontal
    Appearance doesn’t matter
    Concrete basement floor already cleaned, primed, and then painted with two coats of water based concrete floor paint.

    • Concrete Sealer Help says:

      Yes on a filming sealers or coatings. Problem is that most will not go over your paint and adhere. I would then a clear water based epoxy would be best but not sure which one. Look around for one locally and make sure it has no issues being applied over a paint.

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