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can you use polymeric sand with flagstone

by Ross Heller Published 3 years ago Updated 2 years ago

Can you use polymeric sand with flagstone? Polymeric sand, or “poly-sand” seemed great at first. As easy to install as regular sand, almost. You simply sweep the material into the flagstone (or other paver) joints, lightly hose down, then it solidifies. Well, it's fairly easy, but you have to be careful–the sand is mixed with a binder.

Polymeric sand, or “poly-sand” seemed great at first. As easy to install as regular sand, almost. You simply sweep the material into the flagstone (or other paver) joints, lightly hose down, then it solidifies. Once it dries and hardens, the sand stays in place.

Full Answer

What mortar should be used for flagstone?

What Mortar Works Best With Flagstone Outside?

  • Definition. Brick roadways require mortar with high load-bearing capacity. ...
  • Benefits of Hydrated Lime. The addition of hydrated lime makes a more pliable mortar. ...
  • Hydrated Lime Mortar Mixture. The correct mortar mix will hold stone in place for years. ...
  • 1:1 Mortar Mixture. Color can be added to mortar and grout. ...
  • 1:3 Mortar Mixture. ...

What is the best material to put between flagstone?

What is the best material to put between flagstone? Sand: Sand is the most common joint filler, but it is challenging to keep in place and needs to be refilled. Rocks: You can use small rocks to fill large gaps, and gravel or crushed rock can be used to fill smaller gaps.

How to use polymeric sand when setting pavers?

  • No Mixing Required
  • Pour Paver Set onto the pavers. Using a broom, sweep polymeric sand into the joints.
  • Material should be applied to within 1/8” of the top of the paver.
  • It is necessary to compact the material before wetting. If possible, run a vibratory compactor over the pavers. ...
  • The polymeric sand level will drop, filling any voids. ...

How do you use Sakrete polymeric sand?

QUIKRETE® PowerLoc™ Jointing Sand is a polymer-modified graded sand for filling between interlocking pavers, brick, patio blocks and concrete slabs. Once PowerLoc™ Jointing Sand is swept into the paver joints and dampened with a water mist it hardens, locking pavers into place.

What is the best material to put between flagstone?

Here are five types of materials to use when filling gaps between flagstones:Sand. Though a very common filler, bear in mind that if you use sand for flagstone patio filler you will need to refill it from time to time as the sand will erode.Rocks. ... Mulch. ... Plants. ... Polymeric stone dust.

How do you put polymeric sand on flagstone?

1:033:05Flagstone installation with enviro bond sand - YouTubeYouTubeStart of suggested clipEnd of suggested clipSpread the enviro stone evenly over the flagstone surface. And with a continual and slight poundingMoreSpread the enviro stone evenly over the flagstone surface. And with a continual and slight pounding motion sweep the enviro stone into the joints. With the fine spray saturate.

How do you fill gaps between flagstone?

0:004:19What to put between flagstones? - YouTubeYouTubeStart of suggested clipEnd of suggested clipAreas like municipal parks perk grout is permeable. And easily cleaned sometimes perc grout can beMoreAreas like municipal parks perk grout is permeable. And easily cleaned sometimes perc grout can be stronger than the stone. Itself. It is straightforward to install.

When should you not use polymeric sand?

#6 - Too Narrow or Too Wide Joints The sand is simply pushed out of the joints. This is why we don't recommend using polymeric sand on extremely narrow joints. Similarly, too-wide joints can lead to washout, because they allow too much water flow during the activation process.

Can you use polymeric sand on natural stone?

0:126:45Polymeric Sand in Flagstones - YouTubeYouTubeStart of suggested clipEnd of suggested clipAnd they combine in water. And it creates kind of a flexible glue which is wonderful for patios forMoreAnd they combine in water. And it creates kind of a flexible glue which is wonderful for patios for driveways. Or our area where i live in utah.

What do you grout flagstone with?

1:203:13How to Grout Flagstone : Home Improvement Help - YouTubeYouTubeStart of suggested clipEnd of suggested clipSo I started off by mixing our cement with a little extra Portland in a two to one mix. This willMoreSo I started off by mixing our cement with a little extra Portland in a two to one mix. This will give you a good bind good bond ability to the base as well as the side of the flag.

Is polymeric sand the same as stone dust?

The key difference between polymeric sand and polymeric dust boils down to the size of the joints between the stones. In applications that have larger, natural stones with irregular contours, it can be difficult to create consistent ½” joints. For these jobs, polymeric dust would be the ideal product to use.

How big a gap can polymeric sand fill?

How Big a Gap Can Polymeric Sand Fill? Polymeric sand works best to fill gaps between 1/4 inch and 1.5 inches wide. Wider joints will require more time to harden.

Should I use polymeric sand or regular sand?

Polymeric sand is the more reliable and durable option for filling in the paver gaps. It outperforms regular sand when a homeowner is looking to lock the paver joints properly and wants a steady and stable path. It also provides a better appearance with its cleaner look and availability in varied colors.

Why does polymeric sand fail?

Epic Fail #1: Too much or too little watering. A polymeric sand installation requires the use of a controlled and methodical watering technique. Using too much water can cause the sand to wash out of the joints. On the contrary, using too little can result in the product not setting up properly.

How long does polymeric sand last?

Polymeric sand can last up to 10 years before replacement is necessary. However, certain manufacturers claim some products can last up to 15 years.

Can you pressure wash polymeric sand?

You can't pressure wash and apply polymeric sand on the same day. I should warn you that getting the stain off is a huge problem so it's best to take the time to avoid it in the first place.

What is polymeric sand?

Polymeric sand is a product made from sand with an acrylic binder added. When the product first came out It seemed like a great idea. Stone Sculpture.

Can you repair a stone foundation with mortar?

If your stone is on a concrete base, then you want to repair it with mortar, not stone dust. If the foundation is dry laid, repair using dry laid methods/if the foundation is cement based, repair with cementious materials.

What is the best material for flagstone?

Devinon October 19, 2020 at 12:34 pm . Stone dust is the preferred material forleveling flagstones, because ants love sand and may likely undermine a patio built that way. Stone dust/ DG is a good joint material for joints up to 2″ wide.

How big is a 24" flagstone?

1/4 inch gap is fine. Dimensional flagstone is usually cut to nominal size–a 24″ flagstone will actually be 23 5/8″, give or take an 8th of an inch. As such, you’ll end up with gaps between your stones of 1/8″ to 1/2″, and that’s fine.

Can ants dig up flagstone?

May last for quite awhile, but when it does fail it will be much more work to repair it then to repair dry flagstone work. Sand—ants will dig it up and get it all over the place…also the sand may wash away, causing stones to settle. Gravel—really no problems here, just use the right type of gravel.

Can you use fine sand for ants?

Just make sure the base is course sand, not fine. You will need to use fine sand for the joints however because of how tight they are. Again, ants love fine sand—but in this application, pattern-cut stones, tiny joints—fine sand will not be the end of the world—so long as the base is course, of course.

Is cement based mortar a good filling material?

Cement is rigid—if you put a rigid top on a flexible base then systemic cracking is inevitable. Cement based mortar is a fine joint filling material if the flagstone happens to rest upon a concrete foundation.

Is screening the same as gravel?

Screenings are almost the same thing as modified gravel— they are indeed one of the two ingredients in modified gravel…they are heavy enough that it really is no problem to use 2 inches on one stone and half an inch on another—ten years down the road, that patio will still look sharp.

Does gravel move during freeze thaw?

The gravel base is flexible and will move ever so slightly during freeze-thaw. Well, if the base was done poorly the movement might be more then slight, but let’s assume the base was done well. A gravel base will definitely move a bit—looking at any of my patios, you’d never know that, but the movement does happen.

Why is it important to familiarize yourself with polymeric sand?

There are universal steps to the process of installing polymeric sand, failure signs, and ways in which you can ensure that your polymeric sand installation will run smoothly.

What is polymeric sand?

Polymeric sand is a sand formula that is swept into the joints of pavers and natural stone to lock in the product, prevent weed growth and insects, and to provide the final touches of any hardscaping job.

What is left behind on pavers?

What is left behind is the hardened dust on the surface of the pavers that needs to be removed. The process of polymeric sand haze removal involves using a saturated chemical clean the surface of the pavers and remove the haze. Click this link if you want to learn more about the process of cleaning pavers.

What does it mean when sand is polymeric?

If there is a crust forming on the surface of the sand, typically this means that the sand was filled too high or the sand was not watered enough. If the sand was filled too high in the initial installation, the sand will continuously be worn and eroded away.

Why is my sand not setting?

Typically this occurs because there was a rainfall shortly after the installation which caused the sand not to set, the sand was watered for too long, or there is not proper drainage in the base. If the problem is caused by the base, then there is a bigger problem at hand.

How far should you sweep polymeric sand?

Most manufacturers recommend not to sweep the sand more than 10 feet in any direction to avoid separating the delicate formula.

What should not be installed on pavers?

What should not be installed is stone dust or chip dust. That is because this will harden and not allow water to drain through, keeping the water below the pavers and saturating the joints, not allowing the polymeric sand to properly dry and never set.

What is polymeric sand?

Polymeric sand or poly-sand is a unique mixture of fine sand combined with other additives, typically polymers, when bound with water will form a surprisingly strong glue. This will lock the sand particles together helping secure pavers in a uniform and durable surface. When installed properly, the hardened sand will lock pavers in place and create a more effective weed and insect deterrent but will still allow water to drain freely. The last thing you want is a lake on top of your patio.

What is the best material to fill gaps in pavers?

Sand. Sand is often a traditional material used between the cracks of pavers depending on if it’s irregular pavers or square ones and how close the gaps can be. The small granules will fill in the gaps between stones without leaving spaces. Once completed, you can brush the sand into the sandstone gaps with a push broom.

Is crushed gravel permanent?

It also adds a more seamless look to the patio. This could almost look like a stamped patio or permanently cemented in Flagstone, even though it’s not permanent.

Is polymeric sand good for a job?

However, just because polymeric sand is common, doesn’t mean it’s always the best material for the job. It can be easy to install and it stays in place but over time, it can crack or stay solid on top and leave avoid underneath.

What is the best sand for pavers?

Polymeric sand is a great alternative to traditional paver joint sand and its common pitfalls. Make sure you follow these best practices when installing pavers. Your patio will be weed- and ant-free for years to come, and you won’t have to worry about installing pavers for years.

Why is paver joint sand flexible?

Yet, it becomes relatively flexible when wet to prevent cracking during freezing and thawing. Weeds can grow in the worst of conditions, including traditional paver joint sand.

What happens after pavers are installed?

After paver installation, the sand would be swept into the paver joints. But the lack of binders in the sand would allow washout and cause weeds, grass and ant hills to form. The introduction of polymeric sand helped homeowners prevent these unfavorable occurrences, however.

What is poly sand?

Poly sand is an advanced mix of fine sand and polymer additives. Upon proper installation, the polymers activate and bind the joint sand matrix inside the paver joints. Poly sand is thus known for its durability. Its binding ability locks pavers together, allowing the joints to stay strong for the long haul.

How to remove air pockets in polymeric sand?

Using a back and forth motion, brush a push broom over the sand to ensure that each joint is filled to the entire depth of the paver. After brooming it into the joints, pack the sand down to remove air pockets and eliminate inconsistencies throughout the polymeric sand .

How to get rid of sand residue?

Remove excess residue with a leaf blower. Use a leaf blower at its lowest setting to blow away any excess polymeric sand residue. Angle the blower at roughly 30 degrees to ensure you're not blowing sand out of the cracks.

What to do if it rains on pavers?

If it rains after you’re done and the sand hasn't had time to gel, the sand may wash out onto the top of the pavers and require certain paver areas to be reinstalled. Use a broom to fill gaps. Filling the gaps of a paver is vital to a proper installation.

How far should I leave sand on pavers?

In fact, it is important to make sure you leave about 1/8" from the top of your pavers. This is critical to help you avoid spill-over once you start watering your joints to activate the sand. Further, overfilled joints will break down over time with traffic on the surface. This will not look good on your project.

What is dominator sand?

DOMINATOR Polymeric Sand is one of the easiest polymeric sands on the market to install, but sometimes folks still make time-consuming and costly mistakes. So we've collected some of the most common mistakes to help YOU avoid them.

Why does sand crack when under-wating?

Eventually, the crust will break away, eroding the joint. It also causes cracks and gaps, because the sand hasn't fully bonded the entire depth of the joint.

How to get the best bonding performance from the top of the joint to the very bottom?

In order to get the best bonding performance from the top of the joint to the very bottom, it is important to make sure you water your joints the correct amount of time using the "shower" setting on your hose attachment.

Can you use polymeric sand on pavers?

Polymeric Sand is great for stabilizing your pavers because it bonds so well. This becomes a problem though, if it is activated and then allowed to dry ON TOP OF instead of between pavers. This problem can be made even worse and harder to fix if you then apply sealer on top of the sand-crusted pavers, enhancing the rough texture and haze. Of course, when applied properly though, sealer can create a beautiful finish to your polymeric sand project.

Do pavers need a natural border?

Make sure your pavers have a natural or artificial border. If your pavers are set level with the ground, this provides you with a natural border and drainage. If you don't have this, you should install a concrete border or edging to prevent washout at the edges.

Can you put pavers over concrete?

Pavers or stone should be set on crushed concrete, limestone, aggregate, etc, with bedding sand in between. In some cases, thin pavers can be installed over concrete, typically with bedding sand in between to provide a cushion effect and drainage. Installation guidelines vary throughout the country to account for varying soil limitations and climate conditions, as well as usage requirements (vehicular versus pedestrian). If polymeric sand is used in areas without proper drainage, then the water will expose the sand to prolonged periods of wetness and moisture, making it vulnerable to washout. In order for the polymers to harden, the water has to be able to escape.

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