Removes daily debris from hard surfaces, as well as reinforces the sealer to extend the life of polished concrete floors. The multi-purpose cleaner leaves no build-up on the surface. In addition to polished concrete, it is ideal for use on vinyl tile, ceramic tile, terrazzo, wood, and composite materials. It rejuvenates the floor by reapplying trace amounts of densifier and stain resistant additives while you clean with your auto-scrubber. This allows the reapplication of SR2 as far out as every 2 years.