joshg56
18.06.2021 0:25:15
See a video here showing the difference between normal OEM glass and our Armormax® bulletproof glass.
See full version: Bulletproof Glass
See a video here showing the difference between normal OEM glass and our Armormax® bulletproof glass.
Bullet-resistant glass is one of the most important component of a passenger armored vehicle; most shooters aim at the windows because they can see through it. The ballistic glass is made of highly resistant, optically advanced, and transparent materials which in combination can stop most of the bullets available in the world today. A combination of several layers of glass and avant-garde flexible, transparent materials provide for the best of optics and protection ranging from low-level hand-gun to high power rifle ballistic protection.
On our video page you can see our bulletproof glass technology. Also visit our knowledge base to get all your questions answered. here
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The forties brought even further progress for automotive windshields. In 1947 Studebaker introduced its Starlight coupe with a curved windshield. Far more striking, the avant garde 1948 Tucker automobile came with "Pop-Out" windshields. Libbey-Owens-Ford manufactured them. A Tucker sales brochure explained that the "laminated safety glass [was] mounted in sponge rubber fastening so that a hard blow from within will eject it in one piece." It was also that year that Buick, Oldsmobile, and Cadillac added compound-curved windshields to their cars. here
Also about this time a new urethane glue was also used to bond the glass to the frame. The laminated window was more secure and if it broke it broke in a spider's web pattern rather than splintering into small shards. Because it was difficult to penetrate, it also kept passengers from being ejected. Its strength actually meant more structural integrity for the car if it rolled over. There were two significant problems with the laminated glass, however: its inner celluloid layer would discolor, darken, and become brittle over time and it could be punctured easily. In 1938 Carleton Ellis patented a glass-clear synthetic resin that did not discolor over time. Beginning in the late thirties then, manufacturers began using instead Polyvinyl Butyral (PVB) which made laminated glass clearer and stronger and helped block high frequency sound and harmful UV rays.
Early cars were little more than motorized buckboards but it didn't take long for drivers to determine they'd like a little protection from road hazards like sharp flying rocks. In 1904 when the first windshields were introduced, most were a horizontally-divided piece of plate glass just like the glass used for house windows. When the top half got too dirty to see through, a driver could fold it down and keep going. Ford, in 1908, advertised its Model T for $850 — unless a driver also wanted fancy extras like a windshield, speedometer, and headlights, equipment that boosted the price another $100. Likewise, in 1913 Reo offered a windshield as optional equipment. In 1915, though, Oldsmobile was first to sell the top and windshield as standard equipment.
Nano-technologies are clearly the wave of the future, though. Window film with ceramic or crystalline particles can block the IR portion of the solar spectrum. We already have "smart glass" with particles held in liquid suspension that can control the amount of heat and light transmitted through the windshield. GM is working with Carnegie-Mellon and USC on a Heads-Up Display utilizing a sensor-laden windshield to provide data to the driver. In dense fog, for instance, lasers would provide information as to the road's edge. We may soon see cars with sensors that project data onto the windshield, perhaps eliminating the need for a speedometer. While cost is still prohibitive for such applications, prices will no doubt drop as further technical improvements are made. There are even predictions that the Geyser windshields that clean themselves with nano-dust particles (now being tested in Italy on the Hidra) may be more widely available within the next five years. That could mean eliminating windshield wipers altogether. Look out, Jetsons; here we come!
Throughout the twenties there were a number of changes in windshield production. In 1924 some local police departments were the beneficiaries of one windshield development. Lincoln touring sedans called Police Flyers came specially equipped with bullet-proof (glass and polycarbonate) windshields nearly an inch thick. The Bonnie and Clyde era was still some years off, but these windshields were early preparation for the good guys. In 1926 Rickenbacker offered safety glass as a standard feature all the way around its car. As Ford continued utilizing safety glass, a 1928 full-page ad for the Triplex Safety Glass Company touted, "The new Ford is equipped with a windshield of Triplex — the glass that will not shatter." Other manufacturers followed suit. Pittsburgh Plate Glass (the first financially successful U.S. plate glass manufacturer) in 1928 introduced Duplate, its economical version of laminated glass.
The ability of the bullet-resistant glass to prevent penetration by differing firearms will depend on the amount of layering and thickness of the glass. Generally speaking, the more layers of glass and our polycarbonate material, the greater the level of protection. more
Whereas an ordinary piece of glass will easily shatter when hit by a bullet, bullet-resistant glass can withstand multiple bullets without penetration. [links]
Bullet-resistant glass (often known as bullet-proof glass or transparent armour) is the first and most important requirement for all who are looking for an armoured car. With few exceptions, an assailant will attack what they can see. Bullet-resistant glass is installed in all of our armoured vehicles providing a superior level of protection against the toughest security concerns, from random acts of street violence to Presidential Protection. here
Despite the number of layers, the glass remains completely free from distortion, appears as if an OEM (Original Equipment Manufacturer) part, and can be tinted to your preferred level allowing you to feel safe but not at the cost of standing out from the crowd.
So how is this done? Well, the bullet-resistant glass consists of multiple layers of regular glass combined with layers of our specially designed polycarbonate material. The new bullet-resistant glass is thicker than regular glass and, if impacted, will absorb the energy from the round and prevent penetration, keeping you safe from harm inside of your vehicle.
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Traditional bulletproof glass is made from alternating layers of glass (typically 3–10mm or ⅛–⅜in) and plastic, where the plastic is simply a thin film of polyvinyl butyral (PVB) (around 1–3mm or 30–90 mils thick). Newer, stronger kinds of bulletproof glass use a sandwich of glass and plastic made of acrylic glass, ionoplast polymers (such as SentryGlas®), ethylene vinyl acetate, or polycarbonate, with the thick glass and plastic layers separated by thinner films of various plastics, such as PVB or polyurethane. more
Different standards exist in different parts of the world. In the United States, the effectiveness of bulletproof glass is typically compared using NIJ (National Institute of Justice) Standard 0108 for Ballistic Resistant Protective Materials (September 1985), which lists seven kinds of armor broken into five main types (Types I, II-A, II, III-A, III, IV, and Special). The highest classification, Type IV, must be able to cope with a single hit from a 30-caliber armor piercing rifle with a bullet mass of 10.8g and measured velocity of 868±15m/s. In the UK, the relevant British Standard is BS EN 1063:2000, which compares nine different types of glass (BR1 for handguns and rifles, BR2–4 for handguns, BR5–7 for rifles; and SG1–2 for shotguns). Elsewhere in Europe, that's equivalent to CEN 1063. [links]
Bulletproof glass comes in all shapes and sizes to give different levels of protection in different situations. You're most likely to find it in places like banks, where the tellers typically sit behind thick bulletproof windows and use bulletproof drawers to exchange paperwork and money with customers. Generally speaking, the thicker the glass and the more layers it has, the more energy it can absorb and the more protection it will give. Basic bulletproof glass ranges from about 3cm (1.185 in) to 4cm (1.59 in) thick, but it can be made twice this thick if necessary. here
Animation: Why glass shatters. Metals (left) have a crystalline structure: the atoms (red) inside are arranged in regular, repeating patterns. Apply a force (with something like a bullet or a hammer blow), and the planes of atoms simply shift pass one another, so the metal twists and bends to soak up the energy. Glass (right) is different. It has an amorphous (irregular) structure. Its atoms (blue) can't easily shift aside when a force is applied and the incoming energy has nowhere to go, so it splits the whole material apart. That's why metals bend, while (ordinary) glass shatters.
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