Concrete Cleaner is an Eco-friendly, detergent based general purpose concrete cleaner designed to remove soils of dirt, mildew, grime, and other contaminates from a variety of indoor and outdoor surfaces. Has no harsh odors, and can be used at full strength or diluted. This Concrete Cleaner is an economical and safe choice for many cleaning projects. Use on Surfaces coated with sealer, epoxy, urethane, wax, etc. and un-coated concrete. Product is very concentrated and dilution may be required. not intended or recommended to be run through a power washer.