Unlike normal glass, laminated glass consists of two panes of glass with an inter layer of polyvinyl butyral in between. This thickness, along with the inter layer material, builds up the strength of the glass. There is more material for a projectile, that is, energy transference from an impact, to penetrate through. The strong plastic inter layer possesses high tensile strength and good rigidity. All this means that it would take a lot of force to break through a windshield of laminated glass, unlike conventional single pane glass.
Resistance to Shattering
Laminated glass also displays high resistance to shattering. Where many standard windshields crack under normal to above normal pressure, laminated glass can remain intact. The inter layer holds the broken glass fragments in place using compression forces. This means that laminated glass does not shatter. Thus, it also cuts down the risk of cuts and injuries and ensures the safety of the driver and passengers.
Laminated glass also protects passengers from projectiles that can come from stone chips being thrown up from the road or passing alongside a gritter. The high strength and blast resistance to projectiles of laminated glass give the passengers much greater security. A conventional glass will get a hole on being hit by a projectile and leave small shards of glass all around with some being released towards the passengers. Laminated glass, on the other hand, is unlikely to be penetrated fully and therefore, the glass shards released are minimal. In case of serious damage, the windshield will have to be replaced before taking it to the road again.