ADI-CON CW Plus is a dry, free-flowing powder containing a blend of inorganic and organic chemicals, a small amount of sand, and silica-based materials. The reactive materials react with lime generated by the hydration reaction of cement and plug the capillary porosity, making concrete watertight under water head pressure. When mixed into concrete, it works well in foundation waterproofing and all concrete waterproofing applications. W.R. Meadows Inc. 800-342-5976.