This glass prevents forced entry by means of violent destruction using crowbars, hammers or power tools. Special interlayer films are used to bond glass and polycarbonate under thermal compression.
Laminated glass offers different types of security protection: it is therefore important to determine the protection we are interested in. There are many types of security: bullet resistance, bomb blast resistance, fire resistance, etc. Various combinations and types of interlayers and glass produce different effects. Several layers of glass and vinyl (PVB) combined together offer greater protection. And then the thickness of the glass determines the security of the laminated unit. For example, bullet-resistance laminated glass uses a particular combination of glasses and interlayers to absorb high-powered ballistic force without shattering or being penetrated. Obviously, a multi-layer combination will be used. On the other hand, to prevent forced entry it is usually enough to use annealed and heat-strengthened glass with an interlayer. Fire protection glass is a multi-layered product that literally burns away layer by layer, thus braking the progress of the fire. All of these products are rated by levels and are tested for specific performance criteria. However, in addition to the benefits that we have discussed above, there are also some limitations.
