Self-lubricating red on white double lor HDPE boards for Self-lubricating Two-Color HDPE red/white/red 3/4 3/4″ 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 scr