Polyethylene is the most produced plastic worldwide. It’s a hugely versatile polymer, fit for a wide range of applications from heavy-duty damp proof membrane for new buildings to light, flexible bags and films. Low density polyethylene (LDPE is one of the two major types of polyethylene, the other being high density polyethylene (HDPE). LDPE is mostly used in plastic bags (grocery bags) and films (bread packaging, sandwich bags, dry cleaning bags) but also has rigid applications like drink containers. Some LDPE plastics can be recycled, but not all recycling facilities accept LDPE, particularly in its flexible applications. For example, only 5.7 % of LDPE is recycled in the US.