It represents our latest technological innovation in the field of glass sealants. CARCOGLASS 6650 represents a true revolution in the world of MS-Polymer-based sealants. Our product is the result of the most complete synthesis of all the features that a glass sealant must show, to be suitable in the automotive field, on industrial vehicles and in the naval field. Our latest innovation is the first-rate possibility of being able to apply it without Primer and without Cleaner.