Sable Black Poly Sand has a heavier gradation of sand and is used for Pavers, Travertine and Artistic Pavers, Slate, and Natural Stone where there are wider joints to be filled. Stone Edge Surfaces Polymeric Paver Sand is permeable and percolates to allow water to pass through. Stone Edge Surfaces Polymeric Paver Sand is self-healing, flexible, locks in joints better, and is an ant and weed deterrent with superior bonding properties and longevity.