What is the difference between HDPE and LDPE Plastic Sheets?

Although both materials are polyethylene, they do have different properties.  LDPE is softer, more flexible and melts at a lower temperature than HDPE.  LDPE is used in sandwich bags and other types of packaging.  HDPE is harder, has a higher chemical resistance and can withstand higher temperatures.  Grafix stocks HDPE , not LDPE, although LDPE can be purchased on a custom order basis.  Production minimums will apply.  Talk with your sales rep to discuss your options.