Marble Kleen is a biodegradable, water-based, non-acidic, liquid concentrate cleaner, designed to remove grease, grime, soil, dirt, soot, carbonized oil and other surface contaminants from marble surfaces, polished or unpolished.  Just apply the concentrated solution to the marble surface using a brush or sprayer.  Allow to remain on the surface for 5 to 15 minutes. Sponge rinse the surface thoroughly using fresh water.  Marble Kleen can be diluted up to 3 parts of water for light to medium duty cleaning.