Spectra Shield is a composite material (specifically, an ultra high molecular weight polyethylene (UHMWPE) fiber) used in bulletproof vests and vehicle armour. Composite materials (or composites for short are engineered Materials made from two or more constituent materials with significantly different physical or chemical Ultra high molecular weight polyethylene ( UHMWPE) also known as high-modulus polyethylene ( HMPE) or high-performance polyethylene ( HPPE Polyethylene or polythene ( IUPAC name poly(ethene) is a Thermoplastic commodity heavily used in consumer products (notably the A ballistic vest is an item of protective clothing that absorbs the impact from gun-fired Projectiles and shrapnel fragments from explosion For body armour see Armour, for armoured forces see Armoured warfare, for other uses see Armour (disambiguation. It is manufactured by Honeywell. Honeywell ( is a major American multinational conglomerate company that produces a variety of consumer products engineering services and aerospace systems
Other popular fibers with similar uses are aramid (Kevlar or Twaron) and Dyneema (another UHMWPE). Aramid fibers are a class of heat-resistant and strong Synthetic fibers They are used in aerospace and military applications for ballistic rated body armor Kevlar is the registered Trademark for a light strong para-aramid Synthetic fiber, related to other Aramids such as Nomex and Twaron is the brandname of Teijin Aramid for a para-aramid. History Twaron is a heat-resistant and strong Synthetic fiber developed Ultra high molecular weight polyethylene ( UHMWPE) also known as high-modulus polyethylene ( HMPE) or high-performance polyethylene ( HPPE
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