When shattered the only safety glass that holds together is the Laminated glass. Between the layers of glass is an interlayer such as CIP or EVA (explained below) that holds the glass during the event of breaking. The best feature about the interlayer is that it keeps the layers of the glass bonded even when it breaks, and its high strength prevents the glass from breaking up into sharp pieces and when the impact is not enough to completely pierce the glass it produces a characteristic spider web cracking pattern. While building facades, shop front windows, security screens, walk on floors, overhead canopies, domes etc. this mode is used often.
i) Cast in place (CIP) – resin based, liquid using ultraviolet to adhere.
A translucent double-sided adhesive tape is used while taping the edges of the glass. This tape retains the liquid and also determines the thickness of the resin interlayer. The liquid resin is then pumped, into the envelope, where it spreads evenly – even between irregular surfaces.
To prevent the liquid resin from escaping, the air is pushed out of the envelope and the corners and drilled holes are sealed with a translucent silicone. Then for approximately 20minutes, the glass is put beneath the UV lamps. In glasses like the curved and domed ones, which require exceptional optical quality CIP turns to be the ideal one.
ii) Ethylene vinyl acetate (EVA) – interlayer with a picture inside the glass. Printed interlayers.
High tensile strength, excellent transparency, outstanding cohesion properties, good resilience to temperature changes, humidity, durability and long-term reliability are the features of EVA. Ideally made for areas prone to moisture such as shower screens and wet rooms, it is often used for increased safety, security and sound insulation for various indoor and outdoor applications.
In comparison to the conventional glass, the Laminated safety glass is preferably considered, also it has been proven through various tests that is it 30 times more intruder-resistant than conventional toughened glass. It stands with a capability of withstanding a vigorous attack from a heavy or a sharp weapon and can resist an aggressive attack for 20 to 30 seconds compared to toughened glass which would resist a similar attack for only one or two seconds.
High-security applications such as banks, jewelry shops, computer rooms and other areas where a high impact or even bullet resistant glass is required, we can use Visual glass that can also produce multiple lites laminated together. To produce laminated glass, any combination from of glass including the toughened glass from our extensive range can be used.