The most common adhesive, or polymer, used in polymeric sand is silica. The silica forms a flexible hold between the individual grains of sand and the pavers.
What is polymer sand made of?
What Is Polymeric Sand? Polymeric sand is a mixture of fine sands combined with other additives. When mixed with water, it forms a strong binding agent that can be used to fill spaces between pavers, tiles, and more.
Can I make polymeric sand?
By mixing ConSANDtrate at a ratio of 5 parts sand to 1 part ConSANDtrate makes a more concentrated polymeric sand that can be used around problem areas or as a crack filler for concrete or exposed aggregate slabs.
Can you redo polymeric sand?
You have to completely remove all the pre-existing sand in the joints and start fresh. Secondly, you will have to wait a day while the surface dries before you can reapply your new sand. Remember polymeric sand and moisture don’t mix until after it’s in the joints!Jul 2, 2019.
What is Polymer sand for pavers?
Polymeric sand is a material used to fill paver joints, the empty spaces found between each paver, tile or natural stone. It is sometimes called jointing sand, paver sand or hardscape sand. Jointing sand is made up of fine grains, to which manufacturers add a mixture of specific additive particles.
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.
Will water drain through polymeric sand?
Installing polymeric sand involves more than just sweeping and watering. 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 an alternative to polymeric sand?
Both white-washed sand and EnviroSAND are excellent alternatives that are cost effective and easy to apply. If you have trouble choosing between polymeric sand alternatives, think about how often you want to touch up your pavers. If you want a bonding that won’t need much for touchups, consider EnviroSAND.
Is there an alternative to polymeric sand?
Builder’s sand is the most common replacement for polymeric sand, as it is easy to access and not expensive. It is used heavily in construction projects, hence its name. Because this sand is very coarse, you will need to use it regularly. You’ll have to reapply it for years as it settles.
Can you add color to polymeric sand?
Some polymeric sand might have a blend of Portland cement and dry colored pigments as well as the polymer adhesives. The key point here is that you can get the sand mixture in different colors that will match or compliment the color of your pavers.
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 touch up polymeric sand?
You can’t do a simple thin layer of new polymeric on top as it won’t bond well to the older material below and will soon flake off. If you want to repair you’ll need to do like Carbide Tipped mentioned. Make sure you follow Carbide’s and the manufacturers directions.
How long does polymeric sand need to dry?
A minimum of 24 hours drying time is required prior to allowing significant foot traffic and 48 hours for vehicular traffic on the paver surface. Polymeric sands are designed to soften and re-heal.
What is the difference between polymeric sand and regular sand?
Unlike most sand used in construction and landscaping projects, polymeric sand is not a natural product. Instead, it is a manmade compound. Polymeric sand is created by mixing fine sand particles with additives like silica. The purpose of these additives is to form a permanent bond between the sand particles.
Can I use regular sand between pavers?
You can use All-Purpose/Leveling/Paver sand or Polymeric sand, which permanently adheres the paving stones together. Joint sand can be poured over the pavers, and then swept into the joints.
What is the difference between silica sand and polymeric sand?
Polymeric sand is a fine sand that is combined with additives that form a binding agent when exposed to water. Silica is such as an additive and is often used to help lock the fine sand particles together.
What happens if polymeric sand gets rained on?
After installation, a hard rain on polymeric sand that has not fully set up could result in polymeric sand all over the top of the pavers. However, once water is applied, any remaining polymeric sand particles will harden and remain on the surface resulting in an unhappy customer.
Does grass grow through polymeric sand?
When properly installed polymeric sand is very weed resistant. When you allow organic material like grass clippings, dirt, mulch etc… to sit in the joints that will break down into an ideal place for a weed seed to get caught p and start growing.
How do you remove hardened polymeric sand?
The best way to remove polymeric sand from a paver surface is to use a hot water pressure washer at 180°F. The heat will reactivate the polymers in the product and allow the sand to be stripped away.
Why is my polymeric sand not hardening?
Polymeric sand cures by drying. And in order to fully set, it needs to dry out completely. If your polymeric sand didn’t harden up, it’s pretty much guaranteed there’s a moisture issue. If the joints remain wet after the installation, they will remain soft until they dry.
Is polymeric sand the same as concrete sand?
This could have been avoided with the application of a simple product: polymeric sand. This sand is a combination of fine graded sand and extra additives such as silica and various polymers which, when activated with water, form a bonding material akin to a flexible concrete in between the pavers.