Get detailed technical information on Polyethylene (PE). Advantages & disadvantages, properties, features, uses and its applications. A complete updated guide. Polyethylene is a versatile thermoplastic polymer used in a wide variety of applications due to its flexibility, durability, and chemical resistance. Polyethylene is a member of the important family of polyolefin resins. It is the most widely used plastic in the world, being made into products ranging from clear food wrap and shopping bags to detergent bottles and fuel tanks. Learn everything about polyethylene (PE) including its molecular structure, types (HDPE, LDPE), formula, key properties, and industrial applications.