consists of a tough plastic interlayer made of polyvinyl butyral (PVB) bonded together between two panes of glass under heat and pressure. Once sealed together, the glass "sandwich" behaves as a singl, two sheets of plate glass with a sheet of transparent resinoid between, the whole molded together under heat and pressure; it will crack without shattering, lamineerima - materjalisse tugevduskihte lisama, kaitsekihiga või kilega katma