PVB interlayer for laminated glass

Laminated glass is a kind of safety glass that is commonly used for automobile windshields. It consists of two layers of glass with a layer of film, called the interlayer, in between them. The glass is designed this way in order to prevent it from shattering into sharp pieces when struck by an object or when the car is in an crash. The interlayer in laminated glass is a film of a tough yet pliable material known as polyvinyl butyral (PVB). In the event that the glass breaks, the two layers are held together by the PVB, allowing the glass as a whole to bend and absorb the impact. This characteristic is especially important for car windshields. Ideally, the PVB layer will keep objects from penetrating through the glass and possibly injuring the car’s occupants. Laminated glass is also used in prisons, jewelry stores, hospitals, and other places where safety or security are paramount.