Purchase polymeric sand in stores and online at Lowe's and Home Depot and online at Amazon.com. Both Lowe's and Amazon.com offer Sakrete brand polymeric sand and Home Depot offers a variety of brands including Permasand.
Polymeric sand is a granular substance that fills in the spaces between patio stones and pavers, making the surface more stable and durable. Stronger than previous comparable materials, polymeric sand stays put in strong storms and lasts longer before washing out. Additionally, it prevents weeds and ants from ruining patios and paved walkways. Polymeric sand is available in a variety of colors, most commonly grey and tan.
Polymeric sand is mostly made up of quartz and crystalline silica, and also includes a water-activated polymer that binds and seals the sand when wet. It is also possible to buy just the polymer to mix with regular sand, making customized polymeric sand with different polymer-to-sand ratios than the pre-mixed varieties.
In order to apply polymeric sand to refurbish or build patios and paved walkways, it is necessary to have additional equipment on hand, including a garden hose with an adjustable nozzle, a broom and a sturdy brush. Before applying polymeric sand, it is important to remove all other sand. In addition, it is advisable to wear breathing protection while working with polymeric sand because of its chemical elements.