Use for an anti-skid and wearing surface by topping the repair (while wet and before set up of polymer or slurry) with our polymer coated concrete topping sand. Mix your materials and apply as you would with our standard process. Use topping sand generously on the GeoSet, Concrete Welder, Concrete Healer and Elastic Cement polymers with our concrete topping sand. When the material has set up, sweep off access sand and your concrete repair is ready. We recommend that you use our specially-coated sand because it bonds better to our Percol products than other sands. If a gray repair is essential, use concrete topping sand! Available in 12 pound bags.