Poly film is used on computerized driven cutting machine like Lectra, Investronica, Gerber, Autometrix, Eastman,etc. Poly Sheeting ... more economical, stronger, and less costly than low density (LD) polyethylene sheeting.Benefits of using HD Poly Sheeting:· Using ... - its strength affords the ability to down gaugeLow Density (LD) Poly SheetingLD poly sheeting is available for applications where clarity ...