Ecoguard green concrete polishing system is an eco-friendly polishing process that’s supplemented with a long-term maintenance and sustainability program. The user-friendly system consists of Ecoguard Pre-grind, Color Infusion, Densifier and Hardener, Pore Filler, and Max Gloss. It promotes high LEED credits, and can be applied in any environment with no vapors or flammability concerns. Concrete Earth.