Glass Marking Lasers The marking of glass is playing an ever greater role today. Product traceability, brand awareness and protection against fraud, are the main drivers here. Using laser technology from Cerion, glass can be marked using sub-surface engraving or on the surface. Letters, digits, logos and machine readable codes are transferred onto or into the glass by laser beam in just a few seconds. These laser markings cannot be removed or rubbed off and are inconspicuous.