High-Density Polyethylene (HDPE)

A robust thermoplastic polymer known for its high strength-to-density ratio and excellent chemical resistance

HDPE Structure

Key Properties

Physical Properties

  • Density: 0.941-0.965 g/cm³
  • Melting Point: 130-135°C
  • Tensile Strength: 20-40 MPa
  • Elongation at Break: 100-400%

Chemical Properties

  • Chemical Resistance: Excellent
  • Water Absorption: Very Low
  • Solvent Resistance: Good
  • Oxidation Resistance: Moderate

HDPE Variants

Film Grade HDPE

Processing Methods: Film extrusion,Injection.
Properties: High tensile strength, good moisture barrier, lightweight.
Applications: Carry bags, industrial liners, food packaging films.

Recycled HDPE

Processing Methods: Extrusion blow molding, injection blow molding.
Properties: High stiffness, stress crack resistance, durability.
Applications: Bottles , jerry cans, drums up to 200L.

HDPE Copolymer

Processing Methods: Injection molding,Extrusion.
Properties: High rigidity,High Stiffness excellent processability.
Applications: Caps & closures, crates, pallets, household products, toys

Pipe Grade HDPE

Processing Methods: Extrusion.
Properties: Excellent ESCR , UV & weather resistance.
Applications: Water supply pipes, gas distribution, sewage pipes, industrial piping.

HDPE Variants Synopsis

Grade / TypeProcessing MethodsKey PropertiesTypical Applications
Film Grade HDPEFilm extrusion, InjectionHigh tensile strength, good moisture barrier, lightweightCarry bags, industrial liners, food packaging films
Recycled HDPEExtrusion blow molding, injection blow moldingHigh stiffness, stress crack resistance, durabilityBottles, jerry cans, drums up to 200L
HDPE CopolymerInjection molding, ExtrusionHigh rigidity, excellent processabilityCaps & closures, crates, pallets, household products, toys
Pipe Grade HDPEExtrusionExcellent ESCR (Environmental Stress Crack Resistance), UV & weather resistanceWater supply pipes, gas distribution, sewage pipes, industrial piping
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