Load instability during transport is a major cause of product damage, safety incidents, and logistics losses. Traditional single-layer cling films can struggle when faced with heavy, sharp-edged, or irregular loads, especially under vibration, humidity, or long-distance freight conditions.
Multi-layer PE cling wrap—typically produced via co-extrusion technology—has become the industry’s preferred solution for improving pallet integrity, elastic recovery, puncture resistance, and overall load security.
Key Performance Advantages
1 Higher Stretch Ratio with Controlled Force
Multi-layer films achieve elongation rates of 250–400%, allowing tighter wrapping with less film usage while maintaining strong holding force.
2 Improved Puncture and Edge-Tear Resistance
Reinforced internal layers significantly reduce failures caused by:
- Pallet corners
- Strapping bands
- Metal or hard-shell containers
- Equipment vibration during transit
3 Better Vibration Dampening and Shock Response
Alternating stretch and elastic layers absorb and redistribute dynamic energy, reducing micro-shifts inside the pallet stack—a frequent precursor to load collapse.
4 Moisture and Dust Barrier Protection
Multi-layer PE cling wrap forms a denser shield against humidity, dust, and water mist, which helps preserve not only the goods but also the structural stability of the packaging interfaces.
Best Practices for Deployment
To maximize load security with multi-layer PE cling wrap, consider:
1. Set optimal stretch tension
- Aim for high elongation without exceeding the load’s compression tolerance.
2. Use 50% overlap wrapping
- Ensures even force distribution and prevents vertical shifting.
3. Apply corner edge protection for extreme loads
- Especially for metal pallets or industrial containers.
4. Pair with top-sheet covers when outdoors
- Protects from rainfall thermal shock and moisture pooling.
5. Select film thickness based on cargo mass
- Light loads: 12–15 μm
- Standard freight: 17–20 μm
- Heavy or sharp loads: 23–30 μm
6. Consider machine wrapping for uniform force
- Hand wrapping is suitable for small batches; pallet wrapping machines provide repeatable containment force at scale.
Sustainability Benefits
Multi-layer PE cling wrap also contributes to circular economy goals:
- Thinner films with higher stretch = less plastic per pallet
- Fewer wrap failures = less cargo waste and fewer rewrap operations
- Co-extrusion allows use of recycled PE in core layers without sacrificing outer cling performance
- Reduced fuel loss caused by unstable loads and secondary packaging waste
This makes it an important material not only for safety, but also for lowering total logistics emissions and reducing packaging replacement cycles—a theme aligned with your interest in sustainable composite materials and efficient industrial packaging systems.