OptiBrill Glass Nano Coating is a special nanotechnology product with a long term hydrophobic effect on glass surfaces. The hydrophobic product works by repelling water- and prevents adhesion of foreign matter on the surface. (Easy to Clean effect). A ultra-thin and invisible coating forms on the glass surface. As a result, dirt particles cannot penetrate the matrix of the surface. Water runs off easily from the treated surface and dirt and dust are washed off by rain or when rinsed with water. Alternatively, a hose can be used to clean the glass when there is little or no rainfall. OptiBrill Glass Nano Coating is UV resistant.