Polyethylene (PE) is a lightweight, durable thermoplastic with variable crystalline structure. PE is one of the most widely produced plastics in the world (tens of millions of tons are produced worldwide each year). It is used in applications ranging for films, tubes, plastic parts, laminates, etc. in several markets (packaging, automotive, electrical, etc.).

Polyethylene is made from the polymerization of ethylene (or ethene) monomer. Polyethylene chemical formula is (C2H4)n.