Armoured glasses are glued together. For gluing, a special polymer film or solution with a photocurable polymer is used.
The thickness of the armoured glass (ranging from 10 to 80 mm and more) determines the degree of protection. The thick glass gives it its characteristic green opacity. Armoured glass can be installed as part of a double-glazed unit to give the window good noise and thermal insulation properties.
Despite the thickness of the Armoured glass, it remains transparent and practically indistinguishable from ordinary glass.
Armoured glass can also be made of glass with chemical additives (anti-reflective glass)