The seemingly smooth surface of glass and tiles consists of microscopic ridges and valleys which create a favorable environment for the buildup of contaminants such as soap scum, hard water and salt water deposits. In time, the glass surface will visibly dull and become difficult to clean. CRL Vitroglaze Protective Glass Coating is a permanent coating that prevents the adhesion and buildup of contaminants onto the glass surface. It also provides water and oil repellent properties. Working similar to non-stick cookware, your glass becomes easier to clean, without the need for harsh chemicals. Vitroglaze saves valuable time and effort, guaranteed.