Polyethylene (abbreviated PE) is a thermoplastic polymer with variable crystalline structure and is the most common plastic in the world. As of 2017, over 100 million tonnes of PE resins are produced annually, accounting for 34% of the total plastics market. PE resins are typically categorized by their density. Density measures product crystallinity, which influences stiffness and impact performance of articles produced from such PE resins. Typical grades of PE include low-density polyethylene (LDPE), high-density polyethylene (HDPE), and linear low-density polyethylene (LLDPE).
Its primary use is in packaging (plastic bags, plastic films, geomembranes, containers including bottles, etc.) as well as producing plastic pipes.
LDPE: Blown Film Extrusion, Injection Molding, Extrusion Coating
HDPE: Blown Film Extrusion, Fiber or Monofilament, Blow Molding, Injection Molding, Pipe Extrusion, Rotational Molding
LLDPE: Blown Film Extrusion, Injection Molding, Extrusion