Gator XP Sand is a unique mixture of polymer binders and calibrated sand available in Beige, Slate Grey and Ivory. The installation of Gator XP Sand Bond is almost identical to using regular paver joint sand, except for the application of water. Once Gator XP Sand Bond sets, it becomes very firm and locks between the paver joints. This firm bond maintains pavers securely in place, being equally effective on both horizontal and sloped surfaces. Sold in 50lb bags.