UHMWPE Fabric factory Ultra High Molecular Weight Polyethylene (UHMWPE) is odorless, tasteless and nontoxic. It was first aggregated in the 1950s. The first ultra-high molecular weight polyethylene (UHMWPE) fibers were commercialized in the late 1970s. It has extremely long polyethylene chains, all aligned in the same direction. Its molecular weight is as high as 3.5-7.5 million amu, which is much higher than that of polyester yarn with a molecular weight of about 20,000. When used in fibers, the degree of parallel orientation of the polymer chains can be greater than 95%, and the degree of crystallinity is 39% to 75%.http://www.impact-fibers.com/uhmwpe/uhmwpe-fabric/