In the past, people have had problems with both ants and weeds growing up through their pavers. In recent years, with advanced technology, engineers have developed new polymeric sand for the sole purpose of eliminating pesky ants and unsightly weeds. The sand is composed of polymeric bonding agents, which create an impenetrable surface. It looks and sweeps like normal sand, but once it has been lightly soaked and completely dried, it serves much like a grout – no messy sand, no ants, and no weeds.