Review of Different Types of Bulletproof Glass

Bulletproof glass is a unique glass material comprised of rows of laminated glass for the purpose of safety and protection.   In this post bulletproof glass and bullet resistant glass are used synonymously because there truly isn’t a “bulletproof glass” just bullet resistant glass.  In this quick review of different types of bulletproof glass or shall we say bullet resistant glass are some quick facts and answers for common questions.

 

HOW DOES A BULLET RESISTANT GLASS WORK TO PROVIDE PROTECTION AGAINST BULLETS?

FGM Bullet Proof glass is created in different widths to serve as protection from specific firearm types. It is very different from standard glass, they may look alike on the surface, but that is the end to the similarities they share.

The bullet-resistant glass is built from various rows of glass with rows of plastic placed in different positions in between. The stack is then completed with a polycarbonate interior layer at the end.

The interior layer of the polycarbonate can sometimes be replaced with a plastic film.  The purpose of this added layer is to prevent the scattering of glass shards or splinters from the plastic. This combination of different glass rows with plastic rows in between is known as a laminate.

Bulletproof glass offers protection mainly by reducing the moving speed of a bullet. When a shot is fired at a bullet-resistant glass, the bullet’s force is distributed through the multiple rows of glass and plastic.

The spread of the effect over various rows makes the glass absorb the bullet’s energy quickly. The energy absorption reduces the moving speed of the bullet.

This reduces the bullet’s force on the surface of the glass.  The energy left is not enough to make the bullet plow through.

In other cases, if the shot can push through, it is only able to cause minimal damage.  The bullet will be stopped eventually by any of the rows of plastic present in the bullet-resistant glass.

Besides, the plastic layers present in the glass prevents the glass shards from dispersing in the situation where the glass breaks.   Apart from serving as protection against bullets, bullet-resistant glass also offers protection against disastrous events that are weather-related.

 

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IS BULLET RESISTANT GLASS TRULY BULLETPROOF?

Bullet Proof Glass

Bullet resistant glass is not entirely bulletproof. Bullet resistant glass repels bullets when one or multiple shots are fired.

The glass weakens after every shot fired at the glass. In the face of numerous shots, especially for a bullet-resistant glass that is not so thick, the glass will eventually shatter.

The depictions found in Hollywood movies of bullets bouncing off the bullet-resistant glass without damage to the glass are incorrect and exaggerated.

How thick the bullet-resistant glass is and its rating are very critical to how the glass will perform when repelling bullets. Bullet resistant glass is fashioned to resist one-shot or single round of shots. The glass will receive minimal damage in such situations.

Furthermore, how thick the bullet-resistant glass is will also affect how it performs in repelling bullets. This depends largely on the type of weapon and the speed of the bullet fired.

A glass with a higher thickness dimension is required to stop a bullet with a higher velocity. A bullet fired from a rifle is more powerful than a shot fired from a 9mm handgun. The bullet-resistant glass thickness needed for both weapons would vary.

The correct term to use is bullet-resistant glass, as that is what the glass does. It resists bullets before giving way. In a high-risk situation, the time the glass uses in resisting fired shots buys individuals enough time to move from the dangerous space to a safe one.

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REVIEW OF DIFFERENT TYPES OF BULLETPROOF GLASS WITH DIFFERENT LEVEL OF RESISTANCE

 1. Classic Laminated Bullet Resistant Glass

Bullet Proof Glass

 

Laminated bullet-resistant glass is manufactured through the combination of resin and glass comparable to multiple layers of car windshields. Although it is considered a bullet-resistant glass type, it is not used in bullet-resistant units anymore like it used to be.

The laminated glass weighs a lot, can easily be shattered and cannot be cut readily, drilled, inserted, or integrated into a bullet-resistant unit. It is best for places and people who do not face immediate threats of firearms but just want to put it up as a form of protection.

2.  Acrylic Bullet Resistant Glass

Acrylic GlassAcrylic as a material for bullet-resistant units is available in sheet forms and is a plastic that looks like glass. It is sturdy compared to standard glass.

The application of acrylic and its use as a bullet-resistant material are limitless since acrylic can be molded into different shapes, drilled, fastened, and notched. It gives designers plenty of application prospects.

Acrylic is of two types when used as a bullet-resistant material. There is the acrylic AR, which is resistant to scratches and the non-abrasive acrylic. A non-abrasive Acrylic is an affordable option if the environment is clean and can be polished regularly to get rid of scratches.

Acrylic boasts of level one protection from a .9mm handgun at a one and one-quarter inches thickness and level two protection from a .357 magnum gun at a one and three-eight inches thickness. Acrylic can also offer level three protection from a magnum 44 when combined with polycarbonate at a one and one-quarter inches thickness.

3.  Polycarbonate Bullet Resistant Glass

Acrylic Polycarbonate Glass SampleThis type of glass is not glass but another type of plastic. Polycarbonate glass offers more protection compared to acrylic. Combining this type of glass in different layers of polycarbonate sheets and adding acrylic can yield better results.

Polycarbonate glass is a very powerful bullet resisting material and it sports a light tint in its appearance. This tint can make interiors dark because of its inability to reflect light completely.

Polycarbonate offers level one protection at a three-quarter inch thickness against .9mm handgun, level two protection at a one-inch thickness against a magnum .357, level three protection at a one and one-quarter inches thickness against a magnum .44 and a level four protection at a one and one-quarter inches thickness against a 12-gauge semi-automatic shotgun.

4.  Polycarbonate Clad with Glass

Polycarbonate Glass Sample

 

Polycarbonate clad with glass is another type of bullet-resistant glass.  The manufacturing process of this glass comprises a combination of multiple rows of polycarbonate and glass using a lamination process. A polycarbonate sheet of glass between two glass sheets makes up one layer of polycarbonate clad. This process repeats to form multiple layers of  glass and thus creates levels of thickness.  Heating and cooling of the glass blend the layers together. This produces a sturdier glass with more durability.

Polycarbonate clad with glass provides a level one protection at a three-quarter inch thickness, level two at a fifteen over sixteen-inch depth, and level three at a one and three over sixteen-inch depth.

The polycarbonate clad glass is high performance because of the limitless combinations using glass and polycarbonate. This can soar the protection levels to levels of eight as a result combining these materials to the desired thickness.

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Take-Aways

Hopefully you have found some key information in this review of different types of bulletproof glass.   Types of bullet resistant glass are customizable to meet specific needs.  The degrees of protection a bullet-resistant glass offers are directly related to the thickness of glass.  Always keep these key factors in mind when choosing your type of bulletproof glass.