HardScapes Polymeric Jointing Sand is high-performance polymeric jointing sand, graded specially for sweeping into paving stone joints, including interlocking pavers, bricks, patio blocks, and concrete slabs up to 2 in. wide. It is designed for both commercial and residential applications. Once placed and dampened, the nonstaining sand hardens to lock pavers in place, providing a stable surface that is resistant to erosion, weed growth, and insects. Quikrete Cos. 800-282-5828.  www.quikrete.com