Views: 0 Author: Site Editor Publish Time: 2026-10-09 Origin: Site
Aluminum is one of the most demanding materials to package. Ingots weigh 20–25kg each, with stacks exceeding one ton. Coils range from several hundred kilograms to multiple tons. Profiles and sheets have surface finishes that must arrive unmarked. And aluminum products are frequently stored outdoors or shipped by sea, exposing packaging materials to UV, moisture, and temperature extremes.
Steel strapping, long the default for heavy loads, introduces its own problems in aluminum packaging. It rusts, leaving stains that downgrade aluminum surface quality. It has sharp edges that injure workers. It is heavy, making handling more difficult. PP strapping, while lighter and safer, cannot handle the tensile loads that aluminum packaging requires.
PET strap (polyester strap) was developed to address exactly these challenges. It combines tensile strength approaching steel with rust-free performance, low elongation, and excellent weather resistance. At Jushuo Packaging, our production data shows that PET strap has become the preferred strapping material for aluminum packaging operations across global markets.
Aluminum products are heavy. A single aluminum ingot weighs 20–25kg, and a stacked pallet can exceed 1,000kg. Aluminum coils range from several hundred kilograms to several tons depending on thickness and width. Strapping must deliver sufficient break force to secure these loads through handling, transport, and storage.
Aluminum coil and sheet edges are sharp. Strapping that contacts these edges under tension can be cut, leading to load failure. Edge protection is essential, and strapping must resist cutting even when protectors are used.
Aluminum surface quality directly affects resale value. Any contamination—rust stains, scratches, or residue—can downgrade the product. Steel strapping's rust risk makes it unsuitable for surface-critical aluminum products.
Aluminum products are often stored outdoors or shipped by sea. Strapping must resist UV degradation, moisture, and temperature fluctuations from -40°C to +80°C without losing performance.
Aluminum exports must meet international transport standards. Packaging materials must be selected with destination market requirements in mind.
PET strap achieves tensile strength of 450–600 N/mm²—approaching steel's performance while remaining significantly lighter. For a 19mm PET strap, break force reaches 500–900kg, sufficient for aluminum ingot and coil packaging.
PET strap has low elongation (typically 10–18%) and excellent elastic recovery. As aluminum loads settle or shift during transit, PET strap maintains tension, preventing loosening. This property is particularly valuable for long-distance shipments.
PET strap does not rust. It eliminates the risk of rust stains that downgrade aluminum surface quality—a critical advantage over steel strapping.
PET strap has no sharp edges and generates significantly less recoil energy than steel when it breaks. It weighs approximately one-sixth of steel strapping, reducing handling fatigue and injury risk.
PET strap resists UV degradation, moisture absorption (<0.4% by weight), and temperature extremes from -40°C to +80°C. It performs reliably in outdoor storage and ocean transit conditions.
Parameter | Recommendation |
|---|---|
Width | 19mm, 25mm |
Thickness | 0.8–1.0mm |
Break force | 500–900kg |
Key requirement | High tensile strength, cut resistance |
Aluminum ingots are stacked and bundled. Multiple parallel straps distribute load and resist cutting. Edge protection recommended at contact points.
Parameter | Recommendation |
|---|---|
Width | 19mm, 25mm, 32mm |
Thickness | 0.8–1.2mm |
Break force | 700–1,360kg |
Key requirement | High strength, rust-free, edge protection |
Aluminum coils require high tensile strength and edge protection. PET strap's rust-free performance protects surface quality. Multiple straps with corner protectors ensure load security.
Parameter | Recommendation |
|---|---|
Width | 16mm, 19mm |
Thickness | 0.6–0.9mm |
Break force | 400–700kg |
Key requirement | Abrasion resistance, tension retention |
Aluminum profiles require strapping that maintains tension without abrading surface finishes. PET strap's smooth surface and elastic recovery suit this application.
Parameter | Recommendation |
|---|---|
Width | 19mm, 25mm |
Thickness | 0.8–1.0mm |
Break force | 500–900kg |
Key requirement | Surface protection, rust-free, high strength |
Aluminum sheets are surface-critical. PET strap's rust-free composition and smooth surface prevent contamination and scratching.
At Jushuo Packaging, we produce PET strap across the full range of specifications used in aluminum packaging, with documented break force values for each product category.
Aluminum packaging operations require more than selecting the right strap. They require consistent application, correct tension, and reliable load security from the production line through loading and shipment. Jushuo Packaging supports aluminum industry clients through on-site application guidance, strapping pattern recommendations, and full-process quality control.
For aluminum coil packaging, edge protection combined with multiple parallel PET straps ensures load stability during handling and transit. For aluminum ingot bundling, high-tensile PET strap with proper tension settings delivers secure loads without damaging product edges. For profiles and sheets, controlled tension and smooth strap surfaces protect surface finishes throughout the journey.
From PET strap production to on-site application support and finished goods shipment, Jushuo Packaging provides end-to-end assistance for aluminum industry clients. This approach helps customers reduce transit damage and improve delivery reliability.
Aluminum ingots, coils, profiles, and sheets each have different requirements. Define the product category first, then select width, thickness, and break force accordingly.
For heavy aluminum loads, apply a safety factor of at least 1.5× for static loads and 2× for dynamic loads.
For coils and sheets with sharp edges, edge protection is essential. PET strap performs best when used with corner protectors at all contact points.
For outdoor storage or ocean transit, PET strap's UV resistance and temperature tolerance provide reliable performance.
Strap quality consistency directly affects packaging efficiency and transit safety. Suppliers with documented quality assurance and aluminum industry experience provide greater confidence.
Aluminum packaging demands strapping with high tensile strength, low elongation, rust-free performance, safety, and weather resistance. PET strap (polyester strap) delivers all of these properties, replacing steel strapping in aluminum ingot, coil, profile, and sheet packaging applications.
Selection depends on the specific aluminum product category. Ingots and coils require 19–32mm widths with break forces of 500–1,360kg. Profiles and sheets use 16–25mm widths with attention to surface protection. Edge protection is essential for coils and sheets.
Jushuo Packaging offers comprehensive PET strap solutions for aluminum packaging with documented quality assurance and supply chain reliability. Our manufacturing capabilities—4 PET production lines with 20,000 tons annual capacity—ensure consistent performance across all specified dimensions. We support aluminum industry clients through application guidance, strapping pattern optimization, and full-process quality control.
If you need assistance selecting PET strap for your aluminum packaging application or have questions about specifications, please send an email to sales@jushuopackaging.com, and our professional team will provide one-on-one support.
European Committee for Standardization. "EN 13394:2001 – Packaging – Strapping – Specifications for Polyester Strapping." CEN.eu, 2001.
ASTM International. "ASTM D3950 – Standard Specification for Strapping, Flat Steel and Seals." ASTM.org, 2021.
PAC Strapping Products. "High-Performance Polyester Strapping." Plant Engineering, 2024.
Signode Industrial Group. "PET vs PP: Which Strap to Use?" Signode.com, 2025.
