KEY #810 is a polymer acrylic liquid admixture specially formulated for the Key Industrial 1/4 inch troweled polyacrylate mortar system. Key #810 can also be used with sand and cement mixtures for a variety of masonry and concrete applications including underlayments for Key Resin Flooring Systems, an acrylic additive for brick, stone and block mortar mixtures, concrete patches, and as an additive for Key Polymeric Terrazzo.