Diamondite Glasswork Clay is an elastic clay resin that cleans out the microscopic grooves of glass to leave it incredibly slick and thoroughly clean. Glasswork clay cleans by gliding over the glass on a bed of lubricant and grabbing contaminants that are bonded to the glass. Clayed glass will be incredibly smooth, clear, and clean. Glass is not a perfectly smooth material. It is made up of microscopic grooves that can become filled with dirt, debris, and oils from the world surrounding your vehicle. Glass cleaners can remove what is on top of the glass but the only way to remove what in the glass is Diamondite Glasswork Cleansing Clay.