As a kid you were probably fascinated by the superhero qualities inherent in being bulletproof. As adults, being bulletproof takes on a more practical application. You may find yourself wandering through Abbey Wood and wondering how to get some of that bulletproof glass you’ve seen at the local bank. You may even find yourself asking how it works. Thankfully, there are glaziers who specialise in bulletproof glass. Not only can they help you protect your business, they have a good understanding of what makes it so, well, bulletproof.
Glaziers stock a wide variety of bulletproof glass, as manufacturers tend to make it to withstand bullet calibres ranging from 7 to 75 millimetres. That being said, all bulletproof glass found from Abbey Wood to Afghanistan is manufactured using the process of lamination. This is where a layer of glass-like polycarbonate is placed between two layers of normal glass. While polycarbonate may look like glass, it’s actually a tough transparent plastic. When the bullet hits the glass, it penetrates the outside layer to be met by the polycarbonate. The polycarbonate is strong enough to disperse the bullet’s energy before it can penetrate the second layer of glass.
How Energy Dispersion Helps
If you’ve ever caught a cricket ball, you’ll already have some understanding of how energy dispersion works. The faster the ball is moving, the more force you’ll feel when it hits your hand. Now imagine what would happen if that ball hit an invisible wall before you caught it. The impact of the ball would be less as the energy dispersed along the width of the wall. With enough resistance from the wall, the energy of the ball would be thoroughly depleted, the ball would lose momentum, and gravity would do the rest. The same thing happens when a bullet strikes polycarbonate.
Admittedly, that statement is a bit erroneous, unless your business in Abbey Wood is unlikely to be assailed by an army of rifle-wielding maniacs. However, the thickness of the glass itself, not to mention the polycarbonate, has a large part to play in how bulletproof it is. To use the wall metaphor, a smaller ball of lighter material won’t need a thick wall to lose momentum, while a bowling ball hurled from a catapult would need a thick wall indeed. Longer windows need thicker layers of glass and polycarbonate to absorb the energy across the entire surface. However, this also depends on the type of bullet you expect it to encounter. Glaziers will discuss your glass requirements before determining the thickness of glass you need.