Clear laminate glass are made of two or more clear glasses, with one or more films between them, which are glued together, in accordance with EN 12543 standards. Criteria for the selection of triplex glass in comparison with single glazing of the same thickness are the safety, protection and sound insulation they offer in comparison with single glazing. Clear laminate glasses are made of PVB films. The number of films is generally between 1 and 2, while the acoustic film is a special category