Kevlar, which the strength can reach 20.92 cN/dtex and the density is 1.667 more than the water, is one of Aromatic Polyamide Fiber. Kevlar is good at resisting the incision. It has good stability of heating, and it couldn't be melted in high temperature, and the temperature which can make it turned it into character glass is 345°C. The stretch is good and is able to bear the organic solvent. Because Kevlar unites the high strength and light weight, and the strength is 5 times than steel wire, and 10times than aluminum. Then Kevlar is deemed to the best fiber in the world. And it is used into racket, bullet-proof vest, life belt shoes and so on.v>
PEFIBER, which is the thinest, firmest, softest, tensile and high abrasion resistance, is one of the best braid fiber in the world.If the kite line is made from this fiber, it will have better tensile breaking strength and better diameter. It will be one kind of advanced kite line.