Polymeric sand problems lead to the inability to replace any of the paving stones that have eroded or have damage. Instead, you will need to redo the entire pathway because you cannot fill in the sand.

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.

Why won’t my polymeric sand won’t Harden?





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.

Why is my polymeric sand cracking?

UNDER-WATERING causes the polymeric sand to simply form a “crust” on the top. If you only have a crust, you don’t have a proper bond in the joints. 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.

What happens if you overwater polymeric sand?

A danger of using too much water too quick creates the possibility of washing away the polymers. Too little water used in the installation process could leave you with a fragile joint. If the joint is not properly watered to at least 2/3’s depth, a hardened crust may form at the top of the joint.

Can you apply polymeric sand twice?

First, you run the danger of disturbing your base/shifting your pavers. 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!

How do you fix polymeric sand?






Quote from Youtube video: So it can happen where the polymeric sand can break away however it's really easy to fix take some sand and a little cup. Sprinkle it into the joint. And then just brush away any excess.

How do you remove polymeric sand haze?

If poly sand haze has transpired on the surface, it must be cleaned with an acid-based cleaner. Sometimes vinegar can be used unless the poly sand haze is severe. Many times, homeowners and even contractors are unaware of poly sand haze.

Can polymeric sand be removed?

Removing polymeric sand from pavers is not a fun process. You can try to use a hot pressure washer to remove the sand, but you may be left with some sand remaining in the joint. Regardless, you are going to have to scrape out the sand of the joints and use a shop vac or blower to remove this scraped out sand.

How long does it take for polymeric sand to cure?

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.

Do I have to remove old polymeric sand?



But unlike normal sand, the compound hardens very quickly when you expose it to moisture or water. Thus, you must remove polymeric sand from pavers’ surface before you finish your project. Still, the polymeric sand usage in paving projects is probably one of the best choices when it comes to sand types for joints.

Can you put polymeric sand over existing polymeric sand?

The first thing you need to do is remove ALL of the existing sand down to the bottom of the paver. Polymeric sand works best when used at full depth.

Why is the sand coming out of my pavers?

However, since pavers are exposed to various elements such as rain and wind, the joint sand between pavers may get washed out overtime. Occasional washing can also cause the joint sand to corrode. This compacted sand plays an important role as it locks the pavers together.

Can I put new polymeric sand over old?



Yes. If you are tired of sand erosion, weeds and ants on your pavers, Techniseal Polymeric Jointing Sand can be used to replace old sand in your joints. Simply remove the old sand completely and apply Techniseal Jointing Sand.

How do you reapply polymeric sand on pavers?

Quote from the video:
Quote from Youtube video: You fill the joints completely when sweeping the sand you want to keep it in the coverage area avoid sweeping it long distances as this could compromise the integrity of the mix.

Does polymeric sand need to be sealed?

Without any kind of sealer, the sand in your joints will blow and wash away. Fortunately, if you use one of Seal \’n Lock’s paver sealers, you won’t have to worry one bit about purchasing or installing polymer sand.

Can polymeric sand ruin pavers?

Improperly installed poly sand can ruin a great paver project.

Is there something better than polymeric sand?



When looking for alternatives to polymeric sand, you will also want to find high quality materials. There are other products, such as EnviroSAND, EnviroSTONE and EnviroPATH on the market that are able to stop water erosion from occurring.