Ultra-high molecular weight polyethylene (UHMW-PE) is a new kind of engineering thermoplastics with more than 3 million viscosity-average molecular weight.

For Polyethylene molecular weight classification the following guidelines can be used:

        • HDPE (High Density Polyethylene): 100,000 – 400,000 MW

        • HMWHDPE (High Molecular Weight High Density Polyethylene) 500,000 – 1,999,999

        • VHMWHDPE (Very High Molecular Weight High Density Polyethylene) 2,000,000 – 3,100,000

        • UHMWPE (Ultra High Molecular Weight Polyethylene) > 3,100,000 + MW