5 FACTS ABOUT PALLET STRETCH FILM TO HELP BUSINESSES SAVE 20% IN COSTS

In the modern supply chain, pallet stretch film is far more than just a layer of plastic wrap. Statistics show that using standard-compliant PE film helps businesses reduce cargo damage risks by up to 30% during transit. However, not all films offer the same efficiency. Join Hoa Phong Pack as we uncover the "truth" behind high-quality stretch films and how virgin LLDPE resin is reshaping industrial packaging standards today.

What is Pallet Stretch Film?

Pallet stretch film (also known as PE stretch wrap) is a thin plastic film manufactured from polyethylene (PE)—a thermoplastic polymer known for its toughness, elasticity, and high elongation. Thanks to the unique molecular structure of polyethylene, PE film possesses self-adhesive properties when stretched, allowing layers to bond together without the need for additional adhesives or glue.

In industrial packaging, stretch film is used to wrap around pallets, creating a stable unit that secures products during warehousing, loading, and transportation. When applied correctly, the PE layer tightly binds boxes, crates, or loose items to the pallet, minimizing shifting or collapsing when moved by forklifts or transport vehicles.

Beyond stabilization, stretch film acts as an outer protective layer, mitigating environmental impacts. This thin yet durable barrier resists dust, moisture, and mechanical friction between packages. Consequently, products remain better protected, especially during long-distance shipping or extended storage.

Today, pallet stretch film is widely utilized across sectors including food and beverage, electronics, construction materials, consumer goods, and logistics. Its popularity stems from its ability to provide fast packaging, cost savings, and enhanced cargo safety throughout the supply chain.

According to Grand View Research, the global polyethylene packaging industry is maintaining steady growth and is projected to exceed $160 billion by 2030. Massive demand from manufacturing, e-commerce, and logistics is the primary driver for PE film products.

How is PE Stretch Film Manufactured?

To produce pallet stretch film with consistent quality, the process must be strictly controlled—from raw materials to extrusion technology. Factors such as temperature, pressure, haul-off speed, and cooling systems directly impact the thickness, tensile strength, and cling properties of the film.

At Hoa Phong Pack Manufacturing Co., Ltd, our PE films are produced from imported polyethylene resin combined with modern extrusion lines to ensure stable quality for diverse industrial needs.

Raw Materials

The primary ingredient is polyethylene (PE) resin. Depending on the application, manufacturers choose between LLDPE, LDPE, or a blend of resins. Additionally, specific technical additives may be included to enhance performance:

• Additives for increased inter-layer cling.

• Tackifiers for better tear resistance.

• UV inhibitors for outdoor storage.

• Clarity or color modifiers.

Research by the European Packaging Association indicates that proper additives can improve the mechanical strength of plastic films by 20–30%.

The Production Process

Most modern facilities utilize Cast Film Extrusion to create uniform thickness. The basic steps include:

1. Heating & Melting: PE resin is fed into an extruder and melted at precise temperatures.

2. Flat Die Extrusion: The molten plastic is forced through a flat slot die to form a thin sheet.

3. Chill Roll Cooling: The film passes over cooling rollers to stabilize its structure.

4. Stretching & Gauge Control: The film is stretched to achieve the target thickness and strength.

5. Winding: The finished film is wound into jumbo rolls before being slit into final sizes.

Types of Polyethylene Used in PE Film Production

Polyethylene is categorized by its molecular structure and density. In the production of industrial pallet wrap, three types are most common:

1. LDPE – Low-Density Polyethylene

LDPE has a highly branched molecular structure, resulting in a lower density. It is soft, flexible, and easy to stretch. While great for light packaging or food wrap, it is often blended with other resins for heavy-duty industrial use to improve tensile strength.

2. HDPE – High-Density Polyethylene

HDPE has a dense molecular structure, offering high rigidity and chemical resistance. It is commonly used for bottles or pipes. However, due to its lack of elasticity, HDPE is not the primary material for pallet stretch film, which requires high elongation.

3. LLDPE – Linear Low-Density Polyethylene

LLDPE is the preferred material for pallet stretch film. Its linear structure provides a perfect balance between flexibility and mechanical strength.

• High tensile strength and puncture resistance.

• Superior elasticity and stretch ratio.

• Excellent cling properties.

A study in the Journal of Applied Polymer Science shows that LLDPE-based films can improve tensile strength by up to 40% compared to traditional polyethylene types in industrial applications.

Why Choose Stretch Film Made from Virgin Resin?

The quality of PE film depends heavily on the source material. Film can be made from virgin resin or recycled plastic. Virgin resin, produced directly from petrochemicals, maintains high purity and molecular stability.

Advantages of Virgin PE Film:

• Superior Stretch & Elasticity: Less likely to snap or tear during high-tension wrapping.

• Consistent Cling: Layers bond firmly to create a secure shield.

• High Clarity: Transparent surfaces allow for easy barcode scanning and inventory identification.

• Odors & Impurity Free: Safer for food-grade or sensitive consumer goods packaging.

Hoa Phong Pack prioritizes high-quality imported virgin resins to ensure every roll meets international standards, helping businesses reduce breakage risks and optimize packaging costs.

Common Sizes and Thicknesses

Choosing the right specifications is key to minimizing material waste and maximizing cost efficiency.

Width

Typically ranges from 300 mm to 500 mm. The 500 mm width is the industry standard, allowing for faster coverage of the pallet surface.

Thickness (Microns)

• 12 – 15 micron: For lightweight goods or simple bundling.

• 17 – 20 micron: The "standard" for most warehouses and factories.

• 23 – 30 micron: For heavy-duty pallets or sharp-edged cargo.

According to the Packaging Technology and Science Journal, selecting the correct thickness can reduce material usage by 10% to 20% while maintaining load stability.

Why Should Your Business Use Pallet Stretch Film?

In logistics, securing a pallet is vital for safety and efficiency. Stretch film has become the go-to solution because:

1. Load Stability: Prevents shifting, falling, or damage during transport.

2. Environmental Protection: Shields against dust, rain, and moisture.

3. Cost Efficiency: It is lightweight, inexpensive compared to strapping or heat shrink, and speeds up the packing process.

With over 18 years of experience, Hoa Phong Pack Manufacturing Co., Ltd invests in premium imported materials and advanced technology to provide stable, high-performance PE film solutions.