Polished Concrete Systems, Inc. has extensive experience with concrete acid staining of commercial flooring and polished concrete flooring. Once our concrete acid staining and polishing process is complete, you no longer have to be concerned about the acid stains walking off as you do with a sealer or wax application. Concrete acid staining is composed of two main components, acids and metallic salts. The acid opens the pores of the concrete allowing the penetration of the metallic salts. Polished concrete flooring is quickly becoming the flooring of choice in commercial and retail environments.