RicoRock® Waterproofing is a cementious coating used for waterfalls and waterline rockwork, applied before the finish texture. Each 5 gallon pail has 50 pounds of powder that is mixed with water and applied with a wide brush. This waterproofing can be used on a variety of concrete surfaces and is designed to mix easily, set quickly, and has a modified polymer to improve bonding–no liquid acrylic agents are needed.