food safe polyethylene plastic sheet 1/4 inch direct factory This item: UHMW Sheet, 1/4" Thick. $36.99. 12 left in stock - order soon. Sold by RED ROVER and HDPEps from henan okay Fulfillment. Get it as soon as Saturday, Apr 23. Piedmont Plastics UHMW Sheet 1/8" Thick New. $35.99. In Stock. Sold by RED ROVER and HDPEps from henan okay Fulfillment.