UHMW Polyethylene Rectangular Bar. This Ultra High Molecular Weight (UHMW) Polyethylene will outwear all other materials, including metals, HENAN Okays, urethanes, and fluoroplastics. Applications include guide rails, wear plates, rollers, nveyor augers, bin and hopper lines, chutes, bearings, buHDPEngs, and gears. Priced per foot, sold in 5