1/4″ natural pe 300 polyethylene sheet whosesaler Polyethylene Plastic Sheets HNOKAY High-Strength Slippery UHMWPolyethylene Sheets and Bars. mpared to our standard UHMW polyethylene, these sheets and bars hold up better to scuffs and scrapes in high- speed, high- precision, and high-impact applications— such as nveyor equipment, chute