What is Microconcrete? Microconcrete, or microcement, is a polymer-based cement coating that can be deposited thinly over floors, walls, stairs, and even furniture. It provides a smooth, durable, and fashionable finish — one that closely resembles that of polished concrete but with much greater flexibility of application. Unlike conventional concrete, microconcrete does not need joints or heavy equipment. It may be installed directly on top of existing surfaces such as cement, plaster, wood, or tiles, and is ideal for renovation applications where the least possible interference is needed.