Bio Intensive organic cleaner is a solution to be applied before nanocoating the surfaces. Apply bio-cleaner directly on the surface, rub the surface with the scrub pad and wipe the surface with clean cloth thats it you are ready to nanocoat. On hard surface you need to wait for 10 minutes after applying the solution and in oily greasy surface you need to pour hot/lukewarm water to loosen the stains.