Packing film

When sourcing packing film, you must prioritize material composition (LLDPE is standard for stretch film), thickness (measured in microns or gauge), and tensile strength. For heavy-duty palletizing, a thickness of 20-23 microns is recommended, while lightweight bundling may only require 12-15 microns. Additionally, verify the pre-stretch ratio; high-quality films should offer 250% to 300% stretchability to optimize material usage and reduce costs.

Compliance is critical for cross-border trade. Ensure the supplier provides SGS or Intertek test reports confirming adherence to RoHS (Restriction of Hazardous Substances) and REACH standards, especially if the film will be used for food-contact packaging or exported to the EU. For food-grade applications, the film must be BPA-free and comply with FDA (US) or EC 1935/2004 (EU) regulations.

Cast film offers superior clarity and quiet discharge from the roll, making it ideal for barcode scanning and high-speed automated wrapping. Blown film, while noisier and less transparent, provides higher puncture resistance and superior cling, making it the better choice for irregularly shaped loads or sharp-edged products.

Do not look at the price per roll alone; calculate the price per meter or price per kilogram. Many low-cost suppliers reduce the paper core weight or shorten the length. Request the net weight of the film excluding the core to ensure you are getting the volume you paid for. Utilizing high-performance thin films can also reduce total cost of ownership by decreasing the amount of plastic needed per pallet.

The primary risks include weight discrepancies and material substitution (e.g., using recycled resins instead of 100% virgin materials without disclosure). To mitigate this, use Made-in-China.com's Secured Trading services and insist on a Pre-Shipment Inspection (PSI) to verify the net weight, roll length, and puncture resistance before the final payment is released.

Packing film is sensitive to extreme heat and moisture. Negotiate for heavy-duty palletized packaging with edge protectors and moisture-proof shrouds. For large volumes, FOB (Free On Board) is recommended to maintain control over the freight forwarder, ensuring the container is not placed near the ship's engine room or in direct sunlight, which can cause the film layers to fuse together (blocking).

Focus on Annual Volume Commitments rather than one-off spot buys. Suppliers on Made-in-China.com are more likely to offer a 5-10% discount if you provide a rolling forecast. Additionally, standardizing your specifications (e.g., using a standard 500mm width) allows the manufacturer to utilize mass-production efficiencies, which lowers your unit cost.

Check the HS Code (typically 3920.10) against your country's tariff schedule. Some regions have anti-dumping duties on specific plastic products from certain origins. Always ask the supplier for a Certificate of Origin (CO) or specialized trade agreements (like RCEP or GSP) to benefit from preferential tariff rates.