With high impact, it won’t shatter and, if it does break, it fractures into large, dull-edged pieces

Laminated glass is made of several layers of mineral glass (also called flat glass, Borosilicate glass or “Echtglas”- real glass, in German). These sheets of glass are separated by transparent liners which are fused together. This makes them particularly strong and prevents inclusions. The materials used for the liner are PVB & SGP. Nowadays SGP is chosen for most applications, because of its hydrophobic properties.