Sealing Joint Sand From Erosion

Pavers are a great addition to any property. They are diverse in design and make for a durable surface. When pavers are installed correctly, they are laid on a compact bed of sand. Sand is also used to create joints between each paver. Joint sand is usually polymeric sand that consists mostly of fine sand and silica. This creates a binding agent that solidifies the sand particles together, which helps lock all the pavers together.

Harsh elements like wind and rain can break down the joint sand and cause it to erode over time. This can jeopardize the whole paver structure, as the joint sand is an important part of the system. Eroding joint sand is the main cause of most paver system failures. So it would make sense that maintaining the joint sand would keep the structure intact and increase its longevity.

To maintain paver joint sand and keep it safe from erosion, you can seal it. Once the pavers are in place and joint sand has been installed, a paver sealer can be applied to the entire surface. A good paver sealer will penetrate the joint sand and help to solidify it. This locks out moisture and blocks the wind to eliminate erosion. Sealing the pavers and joints can also enhance the beauty of the surface and give it a more appealing look.

Reasons to Seal Paver Jointing Sand

  • The structural integrity of paver designs
  • Reduces sand washout from rain
  • Reduces grass and moss
  • Reduces insects

Best Sealers For Stabilizing Sand Joints

  • SuperSeal25, SuperSeal30, SuperSeal Matte
  • Surebond SB-1300, Surebond SB-7000, and Surebond SB-8700
  • Masonry Saver(Defy) Paver Sealer

Sealing joint sand from erosion is a great way to protect your paver investment. Regular maintenance will still be required as the sealer wears off. But simply washing the pavers, installing new sand, and resealing is all that is needed to maintain a durable paver structure. Do not let wind and rain ruin your paver areas. Use a quality paver sealer to protect from joint sand erosion and increase the life of your pavers.

Any Questions On Sealing Paver Sand? Ask Below

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  • We will reply to your comment shortly
    Lucia S. · 07/01/2021
    I am installing a new driveway with concrete pavers.   Plannng to use sand (NON polymeric).  Which is the BEST way to seal the sand and protect the concrete pavers look?  Saver Defy or the sb8700
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    Arielle · 06/23/2020
    Awesome post.
    I'm currently refreshing a clay brick patio (first time doing anything like this).
    I'm almost done pressure washing it and am currently looking into what sand to use.
    I was going between regular sand and polymeric sand.
    I'm not sure what's currently there (the owners don't know), though it is grey. Is that polymeric sand? There are still weeds and moss growing on the pavement, though I think it's been years since the pavement was last washed or treated.
    Additionally, I believe there are a lot of tree roots growing under the pavement from a very large tree that's growing in the grass right next to the pavement. Therefore the pavement has been reportedly bulging up over the past several years and I'm guessing it'll continue to bulge up slowly. Does this affect what type of sand should be used and if I should use a stabilizing sealer? I'm guessing not, but just wondering.

    If I use polymeric sand + stabilizing sealer, would that protect more against wear & tear and weeds/moss growing than just polymeric sand or regular joint sand + stabilizing sealer?

    Also, sorry if this is a silly question, but is joint sand normally polymeric sand? Is there actually "regular joint sand" or is that just like beach sand or something?

    Thank you so much! Looking forward to learning more!
    • We will reply to your comment shortly
      Brick Paver Sealer · 06/23/2020
      Most sands are not polymeric sand. What you have currently is probably not. Using both a poly sand and a joint stabilizing sealer will help with washing out of the sand and erosion.
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    Truyen Nguyen · 06/05/2020
    Do you have supplier in Canada?
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    Truyen nguyen · 06/05/2020
    Where to buy this?
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    Kelly · 05/09/2020
    Just installed a circular paving kit approximately 90” diameter, what’s the best sealer for both the sand joints and pavers?
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    Craig · 08/17/2018
    I just had a paver pathway installed, and the polymeric sand is softening when it gets wet (after what should have been the proper cure or setup time). What joint stabilizer / sealer would be good to apply to get a matt or semi-gloss finish on the pathway and firm up the joints
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    ernest · 08/17/2018
    if using sealer can i use normal joint sand instead of polymeric sand because it is sealed?
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    ernest · 08/17/2018
    can I dont use polymeric sand and just use the sealer?
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    Mark purslow · 04/06/2018
    Can redo polymeric sand after years of use?
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    Brick Paver Sealer · 11/07/2016
    Yes you can.
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    Peter · 11/07/2016
    Do you seal driveway pavers after installing polymeric sand
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    Brick Paver Sealer · 07/27/2015
    Try the SuperSeal Matte. One coat and about 12 gallons for 1200 sq. feet.
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    Mike Drelich · 07/27/2015
    Job just completed. New pool coping and remodel pavers up to the outside edge of the pool cage. My wife would prefer matt with a wet look finish. a) What product would harden the sand while giving us top-notch surface protection? b) The square footage is approx 1200sq ft. How many gallons will be required and how many coats does your company recommend? Thanks much
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    Brick Paver Sealer · 06/13/2015
    The SB-6000 does not seal or harden sand. You could try the SB-8700 which seals sand and gives a wet look.
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    Steve G · 06/13/2015
    I just used your SB-6000 and the patio looks GREAT. I actually just getting ready to order another 5 gallons to seal my paver walkway's. Is SB-6000 good enough for sealing paver sand or do I need to use something else that I can apply after the SB-6000?