Key strengths of LDPE for packaging, film, and insulation applications.

• High flexibility

  Highly branched molecular structure provides excellent softness and bending capability, suitable for flexible packaging.
• Impact resistance

  Maintains toughness at low temperatures and resists cracking under impact.
• Good transparency

  High clarity makes LDPE ideal for films and applications where product visibility is required.
• Chemical resistance

  Resistant to many acids, bases and common solvents, ensuring stable performance in varied environments.
• Excellent electrical insulation

  Commonly used for cable sheathing and insulating layers due to reliable dielectric properties.
• Easy processing

  Supports blow film, extrusion, injection molding and coating with wide processing window.
• Lightweight & cost-effective

  Low density helps reduce material use and production cost for high-volume items.
• Food-contact compatibility

  Selected grades meet FDA/EU food packaging requirements (grade-dependent).

Tip: Combine LDPE with other polymers or apply multi-layer structures to tailor mechanical or barrier properties.

Main limitations to consider when selecting LDPE for a product.

• Low heat resistance

  Softens at relatively low temperatures; not suitable for extended high-temperature exposure.
• Limited rigidity

  Lower stiffness and structural strength compared with HDPE; not ideal for load-bearing parts.
• Environmental stress cracking

  May develop cracks under prolonged mechanical stress or specific chemical exposures.
• Weak barrier properties

  Limited resistance to oxygen and moisture compared with multilayer or specialty barrier films.
• Poor oil & solvent resistance

  Certain oils and organic solvents can cause swelling or performance loss.

Mitigation: Use blends (LLDPE/HDPE), additives, or multi-layer constructions (e.g. EVOH barrier layer) to address specific limitations.