Exposed Aggregate Sealers

Exposed Aggregate Sealer

Exposed Aggregate Sealer

Sealing Exposed Aggregate patios, driveways, and walkways will enhance and protect your surface from damaging weathering and deicing salts. Sealing aggregate stone is something any homeowner can do with great results.

Benefits of Sealing Exposed Aggregate

  • Improves appearance
  • Blocks U.V. rays that cause fading
  • Reduces mold/mildew infiltration
  • Increases longevity of surface
  • Stabilizes the foundation
  • Minimizes damages from water and freezing

Cleaning Exposed Aggregate

Prep the surface by pressure washing and dirt and grime. If needed, use a cleaner that is specific to any stains. For example: use a Rust Remover to remove rust or a Cleaner Degreaser to remove oil spills.

Always wear safety glasses to protect yourself. After cleaning, you need at least 2 days of dry weather before continuing.

Sealing Exposed Aggregate

Apply a Solvent Based Acrylic Sealer. These sealer types can be used on exposed aggregate with excellent results. Using a 1/2″ roller, start applying the sealer at the far end making sure to not step in the sealer. The sealer should be applied at the manufacturers spread rate. This is typically 100-150 sq. feet per gallon. Apply sealer quickly to avoid any over laps. Let sealer dry for 1-4 hours. If the sealer did not dry evenly, apply a second coat to even out the appearance.

Maintaining

Depending on your exposure to the weather and traffic, Exposed Aggregate should be sealed every 12-36 months.

60 Responses to “Exposed Aggregate Sealers”

  1. Laura says:

    I just finished pressure washing our aggregate porch and walkway. There are some area where the previous sealer turned milky white and is still on the walkway. I am sure it was a solvent based sealer ( seal king). Should I try to remove the build up before I reseal with some Xylol? Is 24 hours long enough to wait after pressure washing?

    • Concrete Sealer Help says:

      Laura, xylol is not a sealer but a solvent. It is possible that it may remove the white spots. Pressure washing will not remove the white spots. You would need a sealer stripper to do that. 24 hours should be fine.

  2. Brenda says:

    I have rust stains that 'appeared' about 6 – 12 months after poured? (no area of rust near the spots!) Where does this come from ? Looks like just came up through the concrete? What to do?

    • Concrete Sealer Help says:

      Brenda, not sure where they came from but you can use a rust cleaner to remove.

    • Frank Ammershuber says:

      Hi Brenda, sometimes you can get some rocks with a lot of iron content which can rust. Also some concreters put in steel height pins to get the height to screed to. usually you hit them down once you have screeded up to them. But if the concreter fails to do this, the top of the height pin will rust.
      Frank.

    • Carolyn says:

      I've found that my lawn fertilizer that oversprays the sidewalk seems to cause rusty areas due to the iron it contains.

  3. John says:

    Hi, I recently had approx. 500sq.ft of exposed aggregate poured and cannot get rid of a chaulky look even after acid washing and pressure washing. Will sealing with SuperSeal 25 or 30 take care of this problem ? I am looking to use this product on approx.300sq.ft.(recently poured as well) of colored stamped concrete. I want the wet look throughout.Will this product hold up to the HOT Texas sun ? Both areas are exposed about 85% to the sun….Any input will be greatly appreciated.

    • Concrete Sealer Help says:

      John, what is the chalky stuff? You should address this first before sealing. Look at a product called NMD80. Once prepped the SuperSeal products will give a wet look any typically lasts for about 2 years.

  4. sean says:

    Hi, about 6 months ago I pressure washed my black.white spec exposed driveway & path & resealed using a roller. Now it looks extremely patchy in spots and other areas it looks deep & black the way it did when originally sealed. Is it possible that I have applied the sealer to heavily? How can I fix this?

    • Concrete Sealer Help says:

      Sean, it is possible. Did the sealer fade away or discolor by turning white in the patchy areas?

      • sean says:

        The original seal had started to lose the wet look appearance hence why I resealed. The previous coat definately was not changing colour or looked white/patchy. When I applied the new seal ( 1 x coat ) it looked terrific. But within the last 2-3 months it has changed too a patchy appearance. Where it is patchy you can see the seal on the concrete and does look too have a good coat. It is hard to describe but some of the driveway looks black but with areas turning more cloudy. I also had the same concrete poured out the back which I sealed using the same product. Nothing wrong at all. Looks terrific. But had not been previously sealed . Be great to get it back to how it used to look.

  5. Loretta Spicer says:

    Just had an aggregate drive-way poured, they sealed it within 2-3 days was this too soon? Sealed yesterday
    now today is raining is this ok? They sealed early a.m. which was not all that warm but did get quite hot after is this ok?

    Had poured stamped concrete patio colour is suppose to be a golden beige but there is a lot of black showing in the pattern , why is this? Loretta P.S doesn`t look all that golden beige to me some pink ton to it.

    • Concrete Sealer Help says:

      It is probably fine. I have not idea on the stamped concrete. Ask your contractor.

      • claudio says:

        The black you see in the pattern is most likely the release they used when stamping. Prbloy used a charcoal release , u will always get the color of the release in the pattern unless a liquid release is used instead of powder. The earlier uwwash the release off or themore u scrub it off prior to the concrete curing the more release u will be able to remove. It is great that they sealed in the morning. Always good to seal in cooler temperatures,it will takes roughly 3 hrs to dry before heavy rain would affect it

  6. Robert says:

    This is a very odd question but I am really hoping that you guys can help me out. I run a small business. This past weekend, a neighbor of a customer accused us of spilling something on their driveway. They had just sealed the driveway a week ago and they have claimed that whatever we spilled has eaten away at their sealant. We never parked in the driveway and we use zero hazardous chemicals nor do we carry any type of chemicals while working. I have no idea what type of sealer they used but I believe they did the work themselves. I have two pictures of the "spill" and I was hoping someone with a trained eye could view the picture and let me know if this is indeed a spill or if perhaps they didn't prepare the driveway properly before they sealed. I understand that without all of the information (type of sealant, how it was applied, how the driveway was prepared, etc.) it is probably impossible to know what really happened. But I was hoping since you are experts in this field, you may be able to look at the picture and know what has happened from your past experience. Here is the dropbox link to view the pics :https://www.dropbox.com/sh/sb77kkh0h0z0qwa/VxKVWbCJ14
    Thanks for your help guys.

  7. judy40206 says:

    I just had new cap and steps done yesterday and today they acid/water -washed it and the older drive in front. Sounds like this was way too soon–that there should have been a drying out of at least two days! What is going to happen to it? Do I need to get them to do something else? And I just checked the weather radar and it might rain now! Help!

  8. SD Dave says:

    Hi great site…

    I live in Southern California and had a colored concrete/exposed ag coping poured around my pool approximately 12 days ago. When I hose down the coping I get the true color of the concrete (davis flagstone brown) but when it dries it turns a dull reddish pink.

    I would like to use a sealer that returns the color without providing an unnatural gloss. It appears that there are several options – can you help me nail it down? Thank you!

  9. SD Dave says:

    Thank you for the reply. One more question – I have quartzite stack stone running from underside of coping into the pool, so a small portion of the quartzite will be permantley underwater. May I use this product on the quartzite on the as well? With regular maintenance of course. No salt system…

  10. SD Dave says:

    May I use the SB-6000 on quartizite down to the waterline? The submerged portion is already going to have the wet look come to think of it…

    What a an awesome site. My concrete contractor with 25 years experience and the representative from the local company that sells sealers weren't able to give me this kind of information. Thank you!

    • Concrete Sealer Help says:

      SD Dave, I would think so but might be best to contact Surebond directly and ask. You are welcome for the site :)

  11. Barbara Cain says:

    Hello. I had some grill grease spots on my exposed aggregate porch that I tried to remove with Pour and Restore stain remover. Unfortunately, that product resulted in larger, white chalky stains that will not wash off. I contacted the manufacturer who suggested that I use acetone to remove the chalky stains, now I have even bigger chalky looking clouds. I'm not sure what I am looking at now but I have attached a link to a photo for your reference. Could this problem now be something as simple as dissolved sealant? Can acetone do that? I'd love to just reseal now and get my porch back to normal however I am afraid that I might trap even more of a mess under the new sealant. I'd love to hear your opinion. Great site buy the way. Thanks so much for your help.

  12. Barbara Cain says:

    Sorry, I forgot to link my photo previously.
    http://www.flickr.com/photos/13226087@N06/9399757

    Thanks again!

  13. HAZEL ZELISKO says:

    Hi, I HAVE EXPOSED AGGREATE,ON MY TOP DECK, SOME CRACKS HAVE FORMED IN THE AGGREATE, WHAT IS THE BEST SEALER AND OR PATCH I COULD USE ON THIS AS IT WILL ATTACH TO A "NEW CEDAR FACIA BOARD WHICH I WILL,HAVE TO USE SOME SORT OF PRODUCT THAT WILL SEAL THAT AS IT ATTACHEWSTO THE AGGREGREATE ~~ "IT TAKES ALL THE ELEMENTS, SUN RAIN ICE~~~THERE ARE LOTS ON THE MARKET, BUT AND NOT WANTING TO HAVE ANYTHING LEAK DOWN BELOW ON TO THE 2 X8'S AS THERE IS SOME MOLD FORMING , AND NEED TO GET IT OUT BEFORE, I REALIZE,
    BUT ALL THIS WAS CAUSED BUY THE FIRST CONSTRACTOR OVER LOOKING ,A DRIP LIP OFF OF THE AGGREATE ON THE TOP.
    I AM HOPING TO FIND EITHER A PRODUCT TO USE FOR THE DRIP LIP OR SHOULD I USE METAL CLADDING?

  14. Jack says:

    Got exposed concrete driveway couple of days ago. When should i seal it and which is the good sealer? Contractor said to seal it after 4 weeks…

  15. Alaska says:

    I have an exposed aggregate concrete floor in my home entryway. So this is a high traffic area. There is also in-floor heating. What would you use to seal it?

  16. Missouri says:

    We just moved into a 9 year old home with aggregate driveway and walkway. It looks like it has never been sealed. We like the "wet look," and would like it to have a brown color. Do you have any suggestions? Something that would last more than a couple of months would be great. Also, we live in Missouri and would need suggestions on where to buy the product.

    • Concrete Sealer Help says:

      Try the SuperSeal 25 for this. Not sure about the tint but I believe you can add some. Might want to ask the manufacturer.

  17. Bob from Pittsburgh says:

    Dave, first thank you for the site. I have been looking for a site like this for two years.

    Two years ago, I had a dyed, framed, and exposed aggregate driveway, walkways and steps installed. The contractor sealed the sloped driveway and steps with a high gloss sealer. The end result looked unbelievably beautiful…until it rained and snowed. The surfaces were slipperier than ice. We were unable to walk or drive on the surfaces when they were wet or snow covered. After 5 or 10 efforts to remove the sealer, he walked away saying sue me. So the issue is now mine to resolve. Here are my 2 questions: 1) There are now streaks of old strain remaining and I have used everything from solvents to paint stripper and cannot get it clean. 2) I would like to use a "higher" gloss" sealer but am extremely concerned over the replicating what I had before.

    Please help.

    • Concrete Sealer Help says:

      Bob in Pitt, do a search online for \”Paver and Concrete Sealer Stripper\”. You will find a couple. You should remove the old sealer. If you use a high gloss sealer you will run the risk of it being slippery. There are additives though that will reduce this. We use one by Clemons called Super Grip.

      • Bob from Pgh says:

        I applied a sealer remover from a local building supply company, with little to no success. So I tried a suggestion from a neighbor and I think I have created more of a problem with my driveway. In an effort to remove old sealer, I applied a paint stripper, brushed it in and pressure washed the remains. Now I have a light "white" color in that area. The driveway is exposed aggregate with Davis powder color dye (Mocha). Do you have any suggestions on how I can restore the natural color before I use the SuperSeal 25 with Super Grip?

        • Concrete Sealer Help says:

          Bob from Pgh, either re strip or use a an acid based cleaner to wash the residue off. Hard to say without seeing a picture.

  18. Denise Miles says:

    Hi, I have a patio of exposed aggregate with wood 2 by 4's between the concrete squares. Is there a sealer that I can use on the concrete and the wood? I'm in Colorado so it's a dry climate (no mildew problem) but patio is exposed to sun, rain and snow.

    Thanks

    • Concrete Sealer Help says:

      Denise, not sure. Concrete sealers would probably penetrate wood but doubt they will help with uv graying. SuperSeal30 for the Aggregate.

  19. Toni says:

    Just had my driveway done with exposed aggregate…there was a lot of rain and the process had to be delayed thru out the process…after sealing with EUCD Diamond Clear we noticed some low spots where water was pooling…so they removed the sealer with mineral spirits, ground the area down, added more pea stone with Loctite all purpose GO2 glue (clear)…the next day we found milky white color in both areas that they had patched…the company thought it was a reaction between the glue and the sealer…so they removed the sealer again and replaced more stones with the glue and decided to wait overnight before sealing again…but the next day the milky white was there again in that whole area where it had been glued…so I told them I didn't want that part sealed again yet because I didn't think it was a reaction to the glue and sealer since that part didn't have any sealer on it anymore. My question is what is causing it and how do we get rid of it?? I am starting to pick out the glue around the pea stone because it is so noticeable, hoping to take that out without disrupting the stones and then try sealing it again. Your thoughts? Thank you.

  20. Janelle says:

    We have white paint ono ur aggregated sidwalk. Any ideas on how to remove?

  21. Anthony says:

    I just had my driveway and down side of house in exposed aggregate. It looked really good before he sealed it. Now it looks very patchy. I rang the concreter and he said to leave it and let it dry then apply another coat in 2 weeks and it will all look the same and the patches will go away. Does this sound right? Shouldnt the seal dry in a day? Its very patchy..

    • Concrete Sealer Help says:

      Anthony, adding another coat should even on the look. Not sure why he wants to wait but it might be what the directions say for the brand he is using. They dry in a day but can take a week or two to cure.

  22. Sam says:

    I have a 20 year old exposed aggregate patio that has never been sealed/cleaned since it was poured. I am planning on having it cleaned and sealed soon. The patio surface is much rougher on our feet than most other aggregate patios we have walked on, will the cleaning and sealing soften this up at all? Do you recommend any particular products? Thank you

  23. Kevin says:

    Sealing aggregate driveways with a product called spectrum from CONSPEC after winter I had no sheen left and it didn't look very good, we did have a bad winter though. I pay about $100.00 for 5 gal. and that was enough to do a rather large driveway. Coverage is 200- 400 sq ft per gallon. Is there a better product out there that I can get in Missouri that is around the same cost and has a high coverage rate?

  24. bill says:

    poured an exposed agg. patio. did it in three different pours on three different days. the last day I
    poured and cleaned the last section off. then sealed it. the last section color is not the same, will that
    change over the next couple days? if not what are my options?

  25. Gene says:

    Had new exposed ag drive poured two weeks ago. The contractor wants to seal it, but I am worried about how sick it may be, because the drive goes up a relatively steep grade. Don't want it too slick when winter comes. Do you recommend sealing or not? Thanks for any help.

  26. Allen says:

    I have an aggregate pool deck that is in great condition but needs to be "revitalized." Pressure washing does not remove the "calcium-like" buildup on the aggregate that prevents the true color of the rocks. I doubt it has ever been sealed. What can be used to clean the surface?

    • Concrete Sealer Help says:

      Try a acid based cleaner for prep. Masonry Saver Safer Brick Cleaner. Seal with a sealer like the SuperSeal 25 or the Super Seal 30.

  27. Brian says:

    I recently sealed my aggregate patio with Eagle High Gloss Clear Aggregate Sealer I purchased extra for a second coat but it does not appear that it is needed. How would this product react to regular concrete on my driveway or walk? Thanks!

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