A windshield or the car glass in the front of your cars and truck or truck is not composed of a solitary sheet of manufactured glass. It's in fact two layers of glass that are divided by a total layer of polyvinyl butyrate. This layer of PVB essentially adhesives and seals both items of glass together. This offers several objectives, though one of the most crucial is to maintain the honesty of the windscreen. In the event of damage, the windscreen is much less most likely to smash.