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The Spectra vs. Kevlar Discusion

by: MarcosSantana
Total views: 31 | Word Count: 381

In the past being protected by body armor was synonymous for bulk, weight , uncomfortable and mass. However over the years, many manufacturers like Dupont have gone a long way to improve the traditional body armors for police and the military especially when they introduced KEVLAR. KEVLAR has increased the protection and comfort of the body armor while reducing the mass and weight.

Today, there is a new substance in use called Spectra, a composite material that is stronger, lighter, and more flexible than Kevlar, which is changing the face of bullet proof wear for our troops and police forces. What are the major differences between Kevlar and Spectra, and what are the big advantages of the latter?

If we examine the structure of the two we see that Kevlar is made from a high strength and high performance fiber who's properties are not yet entirely understood despite the fact that it has been used in bullet proof clothing for many years. A more or less exact description is difficult but you should try to see it is that the molecules form into sheets that then stack themselves around the center of a fiber like spokes. Stacking together several layers of Kevlar in a woven pattern creates the bullet proof material.

The weaving would then "catch" the bullet by allowing the fibers to break apart layer by layer and absorb the velocity, slowing the bullet to a stop as it also dulled and flattened from striking the material. However, this was mostly effective when bullets were slower and had less total velocity, making them easier to stop. Now, our troops and law enforcement officials face much more technically advanced weaponry with bullets flying at higher speeds and constructed from harder metals.

Due to these improvements in weaponry we are back to the point of the bulky, heavy and less flexible bullet proof material because the only solution to this advanced weaponry penetrating completely the vests is by adding more and more layers of Kevlar to the fabric.

Spectra is a completely new and different technology. Spectra is about 40% lighter than Kevlar which makes it a lot more comfortable. Spectra is not been woven which only helps reducing even more the weight and bulk as there is no need for several layers.

About the Author

If you want to know more about Kevlar and Spectra make sure to visit our websites : Navajas | Linternas | Relojes Militares and Ropa Urbana | Ropa de Calle | Ropa Extreme

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