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. (Alliance Gator polymeric sands are considered rainproof in one hour at temperatures over 32° F degrees.)Click to see full answer. Herein, does polymeric sand soften wet?Polymeric Sand. Unlike conventional sand it stays in place and remains stable. It softens when wet and firms up when dry to better resist soil movements. Because the sand gets stiff you can expect fewer weeds and less insect damage.Likewise, what if it rains after polymeric sand? If rain shows up before or shortly after finishing your installation of poly sand, you will have a literal mess on your hands. Installing polymeric sand when the surface of your pavers is wet can also cause unwanted sticking of the polymers to the surface, which can make them difficult to remove. Just so, how long does it take for polymeric sand to harden? Sand remaining on paver faces can create a slight haze after wetting. 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.Will water drain through polymeric sand?Polymeric sand, if installed properly, will harden to lock you pavers in place and create a more effective weed and insect deterent while still allowing water to drain freely.
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