Polymer-modified sand has been around for a while. However, Quikrete’s Hardscapes Polymeric Jointing Sand is different in that it’s been formulated to work in much wider joints like those between randomly-shaped flagstones, cobblestones and other pavers. Like its predecessors, you simply sweep the sand into the gaps between pavers, then saturate the material with a water mist. As it dries, the polymerized sand hardens to lock pavers in place. Quikrete says that the joint filler stands up to heavy traffic, while resisting erosion, weed growth and insects.
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