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Home / News / Industry News / What is the best material for making bulletproof plates?

What is the best material for making bulletproof plates?

Views:0     Author:Site Editor     Publish Time: 2020-01-17      Origin:Site

What is the best material for making bulletproof plates?

In addition to the different grades of bulletproof plates, there are different material differences, so which material is the best bulletproof plate? But first, what is the role of the bulletproof plate? Is it necessary?


Why is a bulletproof plate necessary?

Which material is best for making body armor?

Advantages and disadvantages of body armor with different materials


Why is a bulletproof plate necessary?

In order to protect yourself from the firing of a rifle, you must be equipped with Class III or IV armor. This type of armor is collectively referred to as hardware armor. A typical feature that hardens hard body armor is the use of ballistic panels with plate armor (some armor coat applications have compartments that can be coated on the deck.) Kevlar is usually not the main component of hard armor. Hard armor is usually made of bulletproof steel, ceramic or polyethylene composite. The most common ballistic panels used in use may be in the form of ceramic composites.


Bulletproof plates have always played an important role in body armor for active duty and tactical police. Even if we think of law enforcement and the army automatically when we consider this armor, bulletproof plates are now used for children's backpacks. Ballistic panels come in a variety of shapes and sizes, the most common being rectangular or irregular hexagons. The "most bulletproof" add-on is about the size of a laptop, although it may be larger in some cases. Some models of bulletproof plates have a sturdy base that can be placed upright, called a separate ballistic panel. The bulletproof plates are only used to stop powerful rifle projectiles.


One of the earliest and probably the most famous bulletproof plate applications may be the Small Arms Protection Plug-in (SAPI), which was introduced in the late 1990s and was not mass-produced until the mid-2000s (approximately 2-5 million SAPI) boards. Was issued to the US military; armor manufacturers produced about 25,000 sets per month. The SAPI board is used in conjunction with the Interceptor body armor (IBA) system. These special panels are made of boron carbide or silicon carbide ceramic materials with a strong backing material (ie Spectra). The SAPI board is included in the IBA's Outer Tactical Vest (OTV), which is capable of stopping the 7.62mm rifle at a projectile speed of approximately 2,750 feet per second. The 7.62mm caliber has always been a permanent fixture for the main combo rifle (MBR).


In order to better ensure the safety of the troops, ESAPI (Enhanced Small Arms Protection Inserts) began production in 2005. ESAPI is part of the improved Outer Tactical Vest (IOTV), which includes four ballistic plate inserts and most of the same style of body armor system components. Although heavier than previous models, the new and improved design is more durable than previous models. Even though ESAPI is still made of the same expensive materials (special ceramic composites), they are also produced from inexpensive materials called alumina (AO). Although this material is as durable as a ceramic composite, it is important to note that it is heavier. The AO option is very popular among civil body armor owners.


Which material is best for making body armor?

Body armor, steel and polyethylene (PE) are the most used materials in the manufacture of body armor. Kevlar and polyethylene are mainly used to make soft body armor, while steel and ceramics are used to make hard body armor. PE and Kevlar have revolutionized the development and manufacture of body armor. The bullet-proof vests before the introduction of PE and Kevlar were bulky and uncomfortable to wear. Kevlar is lighter in weight and is said to be five times harder and stronger than steel.


Advantages and disadvantages of body armor with different materials

PE (polyethylene) body armor is the best in every respect. It is lighter than Kevlar and 15 times stronger than steel. PE is a thermoplastic material. PE body armor is made by bonding unidirectional UHMWPE (Ultra High Molecular Weight Polyethylene) fibers to high density PE sheets. PE bulletproof plates work in a very unique way. When a bullet is fired, the bullet will rotate forward. When the bullet hits the PE armor, the rotation creates friction. This friction causes the polyethylene material to melt and then grips the bullet as it cools and hardens again. PE body armor is the best of both worlds. PE armor plates are hard body armor. They are also used with transport vests. They are ideal because they are 15 times stronger than steel, but they are lighter and more comfortable. Ordinary PE armor panels weigh between 1-5 pounds. In short, PE bulletproof plates are the lightest rifle shields. In terms of the effectiveness of PE ballistic panels, the quality of the materials used and the manufacturing process are critical. UHMWPE sheets should be perfectly bonded under high pressure to produce high quality ballistic panels. After perfect bonding, the plate can withstand multiple shots without delamination. Since the impact of the bullet is limited to a small part of its landing, the board may be subject to multiple ballistic impacts and still be protective. One of the most impressive aspects of PE ballistic panels is that they can withstand multiple impacts. Unlike steel or ceramic plates, they do not break when impacted. Therefore, they can hit multiple times at the same location and still prevent bullets from entering. As long as the bullet threat does not exceed Level III, the PE bulletproof plate will provide adequate protection. As we mentioned earlier, the PE sheet is melted by the friction generated by the rotating bullets and then cooled almost immediately to capture the bullets inside and function.


PE is used for body armor of various protection levels. The PE armor plate is thinner and lighter than the Kevlar plate at all degrees of protection. The processes and materials used to make PE body armor are expensive. Therefore, PE body armor is always more expensive than all other body armor. However, every penny you pay for it is worth it. The only disadvantage of PE armor plates is that they are easily degraded by high temperatures. Take military personnel as an example. They often participate in battles in very hot areas. In some deserts, the temperature can be as high as 50 degrees Celsius. Such conditions will damage the effectiveness of the PE armor. Otherwise, the PE armor plate will be very durable.


Kevlar body armor. Today, when you start to understand the essence of body armor, you can't avoid exploring Kevlar's theme. Kevlar is a synthetic fiber with incredibly high tensile strength. Kevlar's molecules are unidirectional and parallel to each other. This allows them to be joined very tightly and therefore has a high tensile strength. Kevlar is sturdy, lightweight, non-corrosive, rust-free and absorbs vibration very efficiently, making it ideal for body armor.


Kevlar can be divided into three levels based on its quality. The ratings are standard Kevlar, Kevlar 29 and Kevlar 49. Standard Kevlar is very hard and is used to make tires. Kevlar 49 is mainly used for the manufacture of plastic reinforcement for bicycles, ships and aircraft. Kevlar 29 is the ideal Kevlar for body armor production. It is also used in the manufacture of brake linings, industrial cables and asbestos replacements. Kevlar is produced by DuPont. In scientific terms, the material used to make Kevlar is called polyparaphenylene acetylene-terephthalamide. The polymer is heated and heated hot through the screen. The resulting fibers are used to weave superhard and high tensile sheets or mats now known as Kevlar fibers.


As mentioned earlier, Kevlar bulletproof vests are mainly classified as body armor. They provide protection against low to medium speed firearms and ammunition. Many of them will not be able to cope with the shooting of high-speed rifles. Although they may be able to block bullets fired from lower caliber rifles, blunt injuries can be high. Injuries to blunt instruments can cause ribs, heart or lung injuries. The more the aramid fiber layer of the bulletproof vest, the higher the protection. In order to prevent blunt injury and rifle caliber, Kevlar bulletproof vests are reinforced with steel or ceramic plates. They became armored cars. However, this makes the body armor stiff, bulky, uncomfortable and difficult to hide. In most cases, such body armor is not suitable for ordinary civilians and uniformed patrols. Although there is no limit to the type of human body armor, this heavy body armor is in most cases used by tactical forces in high-risk environments.


Most importantly, Kevlar himself can only make soft body armor. Other materials such as steel, ceramics and polyethylene can be used to create a stronger armor panel to enhance body armor. It's best to use a soft body armor because it's comfortable and easy to hide, but sometimes you need a hard body armor to stop the rifle threat in case. Although Kevlar is such a tough material, it can still be damaged by ultraviolet light. It decomposes when exposed to sunlight with UV radiation. Dry cleaning, bleaching and frequent washing will also reduce the tensile strength of Kevlar. Therefore, any Kevlar body armor must be covered with thick fabric to cover the Kevlar sheets to prevent sunlight and moisture from entering. body armor should also be accompanied by very precise instructions on how to properly clean it when needed.


In different situations, the types of bulletproof plates that people need are also different. Please purchase the bulletproof equipment that suits you according to your actual needs. If you are looking for rigorously tested high quality bulletproof plate, SHANDONG HUIERDA TRADING CO., LTD offers you the best products.

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