This glass has the appearance of a sandwich and is manufactured by joining two or more sheets with a polyvinyl butyral (PVB) film sandwiched between them. PVB is a polymer composed of polyvinyl alcohol and butyraldehyde. This film offers a high range of protection against impact and/or penetration compared to simply tempered glass. In case of breakage, the PVB retains the glass fragments and prevents the broken parts from falling everywhere. It is a glass of excellent optical quality, low emissivity and solar control. Additionally, PVB provides a higher percentage of noise reduction.
It is commonly used in bathroom doors, sliding and swing access doors, skylights, balconies, windows, floors, domes, commercial sideboards and all those applications where user safety is the priority. Likewise, it is widely used in airports, hotels, museums, recording studios, data processing centers, industrial plants and rooms located near train stations.