“There are various ballistic glass items out there, every one of them is good for various applications—and the vast majority call every one of them ‘bulletproof glass,' regardless of what they are.” Specifically, there are five kinds of Bullet proof glass regularly sold today. You see them all over: drug stores, banks, shops, schools, government structures, public venues, places of love, etc.
The five most basic sorts of bulletproof glass are:
- customary overlaid glass
- protected ballistic glass
- acrylic
- glass-clad polycarbonate
1. Customary Laminated Glass
Covered glass is the first “bulletproof glass.” It's made from layers of glass and tar, like a thick pile of present-day vehicle windshields. This older style glass is not, at this point exceptionally helpful in most slug-safe establishments: It's hefty, fragile, and can't be promptly cut, opened, penetrated, or in any case, easily joined into an incorporated projectile safe framework. Experienced fabricators like TSS do have the hardware and skill to construct quality frameworks with overlaid glass. Yet, it still normally takes an extra 6 to about two months to fabricate such frameworks.
“Nowadays,” Jim Richards clarifies, “this is an elective item for individuals who aren't confronting a ballistic danger, yet at the same time need to keep individuals out and keep their window unblemished. It's a more lasting and reasonable arrangement than secondary selling films, however, it depends on a major thickness to develop to a ballistic security level. It likewise will in general have an unmistakable greenish color. In many applications, there are simply better arrangements accessible.”
2. Protected Ballistic Glass
Protected ballistic glass is an entirely different age of shot-safe security frosting. These are in fact “secure IG (protected glass) units,” and were first produced for schools and comparative expense cognizant, non-customary targets (like places of love and public venues), Secure IG units join the most desirable characteristics of a few various types of frosting. These are only 1-inch to 1.125-inch thick, yet can convey both a constrained passage and UL Level 1 slug safe rating. As a glass-based security frosting, it's useful for both inside and outside applications, and simpler to keep up. Since it's a protected coating unit, it has magnificent light transmission, a high r-esteem, and is even accessible in inactive self-coloring assortments. These improve tenant solace and lower building cooling costs, however, don't worry about the support concern of sensor-based or electronic window treatment.
“This is the solitary glass like this available,” Jim notes. “It's not simply projectile safe, not simply constrained passage appraised, not simply energy productive. It's these, a genuine ‘smartest possible solution item. This is a redesign and speculation that improves everybody's life consistently—not simply during a very horrendous occasion.”
3. Acrylic
By a wide margin, the most well-known sort of “bulletproof glass” you'll see is solid acrylic. This is a solitary piece of 1/4″ to 1 3/8″ strong plastic. Acrylic can be penetrated, directed, cut, opened—even shaped into specially bent windows. Acrylic passes light consummately. Its unpleasant cut edges can be fire cleaned clear, making acrylic the go-to material for the alluring, inconspicuous establishments supported in most open structures.
Projectile safe frameworks depending on solid acrylic can be created to UL-evaluated Level 1 or 2 shot opposition. A Level 1 framework can stop three jacketed 9mm projectiles, while a Level 2 framework can prevent three shots from a .357 Magnum. To augment to Level 3 security—equipped for withstanding, in any event, three rounds from a .44 Magnum—Total Security Solutions sandwiches 1″ of acrylic bulletproof glass between two sheets of polycarbonate—making it into an LP (overlaid polycarbonate) acrylic window. This keeps the amazing material characteristics of the acrylic while adding a portion of the projectile snatching limit of polycarbonate (depicted underneath).
While acrylic can be utilized both inside and outside windows, Jim will in general restrict it to inside applications. “Acrylic—like all plastic-based transparencies—has issues with crazing and preliminaries and UV light. At the point when you have an outside window, you very can't handle what synthetic substances it comes into contact with. Also, the sun eats everything over the long haul. All that expands the odds of the coating not looking incredible as it ages.”
4. Glass-Clad Polycarbonate
Glass-clad polycarbonate (GCP) is a cutting edge turn on that outdated overlaid bulletproof glass. For instance, Level 3 glass-clad polycarbonate (equipped for preventing three rounds from a .44 Magnum) is a 0.375-inch thick layer of glass, a flimsy layer of polyurethane, and another 0.375-inch sheet of glass. These are then sandwiched between two additional layers of polyurethane and afterward external covers of 0.125-inch polycarbonate. The absolute thickness is a little more than an inch.
Like customary covered glass, glass-clad polycarbonate is trying to coordinate into acrylic-style consistent frameworks. All pieces should be mechanically water fly cut or hand-cleaned by the first producer—a work serious cycle requiring extraordinary offices. Like polycarbonate, it experiences helpless light transmission and is vulnerable to some crazing.
However, glass-clad polycarbonate is a really elite material. It's accessible in various make-ups and can be layered up to any thickness, giving an assortment of constrained section and shoot evaluations, just as slug opposition levels right from Level 1 to Level 8 (effectively preventing a burst from an AR-15 or AK-47). At the point when layered with glass covers as the peripheral surfaces, GCP settles on an extraordinary decision for outside applications: it holds up in high-traffic territories, climates phenomenally and conveys appraisals for constrained passage, dangerous impacts, and tropical storm winds.
