This article explores the different types of PE film—LDPE, LLDPE, and HDPE—their key properties, and their primary industrial applications, including stretch wrapping for pallet stabilization, shrink wrapping for full product protection, and heavy-duty liners for bulk materials. It also provides practical guidance on selecting the right PE film based on load weight, protection needs, and packaging methods.

Jun 17th,2026 2 Puntos de vista

Polyethylene (PE) packing film is a thin plastic film widely used in industrial packaging to protect, secure, and unitize products. Made from polyethylene resin, it is valued for being cost-effective, durable, and resistant to moisture and chemicals.

Main Types of PE Packing Film

Type	Key Properties	Common Uses
LDPE (Low-Density)	Flexible, heat-sealable, good clarity	Shrink wrap, bags, pouches
LLDPE (Linear Low-Density)	High strength, puncture-resistant, excellent stretch	Stretch wrap, heavy-duty sacks
HDPE (High-Density)	Strong, stiff, excellent moisture barrier	Heavy-duty liners, shipping sacks

Why Use PE Film?

Moisture & chemical resistance – Protects goods from water, humidity, and corrosion.
Durability – Offers high tear and puncture resistance (especially LLDPE and HDPE).
Flexibility – Stretches and clings tightly to loads without adhesives.
Cost-effective – Affordable for high-volume industrial use.
Heat-sealable – Enables secure closures for bags and wraps.

Key Industrial Applications

1. Stretch Wrapping (Pallet Securing)

Typically uses LLDPE film.
Applied around pallets and stretched to create a tight hold.
Keeps boxes and products stable during shipping, reducing the need for straps or glue.

2. Shrink Wrapping (Full Protection)

Typically uses LDPE film.
Wrapped loosely and then heated to shrink tightly around the product.
Ideal for multi-packs (bottles, cans), irregularly shaped items, and construction materials.

3. Liners & Sacks

HDPE film is used to produce heavy-duty liners and shipping sacks.
Replaces paper bags for chemicals, fertilizers, and industrial powders – offering waterproof and chemical-resistant protection.

4. Laminates & Protective Covers

Laminated to paperboard for moisture-resistant cartons.
Used as dust and scratch protection for sensitive components during storage or transit.

Choosing the Right Film

Heavy or sharp loads → Choose LLDPE or HDPE for puncture resistance.
Moisture-critical products → Choose HDPE or co-extruded films with better barriers.
Machine wrapping → Use machine-grade films designed for high-speed application.
Hand wrapping → Use films with good stretch and cling for manual use.

Summary

PE packing film is an essential material in industrial packaging, offering a balance of strength, flexibility, and cost. Whether you're securing pallets with stretch wrap, protecting goods with shrink film, or using heavy-duty liners for bulk materials, there is a PE film type designed for your specific needs. Choosing the right one ensures product safety, reduces damage, and optimizes your packaging efficiency.