LDPE film is an abbreviation for low density polyethylene film. The variety of Low Density Polyethylene (LDPE) film resins have evolved to match the myriad applications for specific large markets for LDPE films. What works for one application will not work for others. A few examples of resins which work only for specific LDPE plastic film applications are - dry cleaner bags, bread bags, paper towel overwrap and shipping sacks.