polymer modifiedPatchwell Kit consists of a liquid acrylic polymer modified mortar for repairing horizontal concrete surfaces. The extremely fine dry powder is composed of specially graded, hard quartz, dispersing and modifying agents, as well as special cements-all properly combined for high strength and feather-edge troweling. The liquid polymer contains high molecular weight acrylic resins for added strength and resistance. These polymers, which are less than one micron in diameter, penetrate deeply into the pores of concrete to increase the bonding ability of the Kit mortar to the substrate. When both components are combined, they form a strong, very durable chemical and abrasion resistant mortar. Special additives increase the performance in resisting corrosion of reinforcing steel. Each Kit comes prepackaged and ready to use. Nothing else to buy. Simply pour the liquid component, contained in the jug inside each pail, into the powder in the bottom of the pail. Mix well and you're ready to go. The self-contained units reduce the chances of contamination or mixing errors. Since the Kits are self-curing, it is not necessary to keep the mortar covered to develop high strength under normal conditions.