Polyester (PET) packing straps are widely used to secure cartons, pallets, and heavy loads in logistics, manufacturing, and export packaging. However, the straps alone cannot hold a load effectively without proper sealing. This guide explains everything you need to know about sealing polyester packing straps, from basics to practical applications.
What Are Polyester Strapping Seals?
Polyester strapping seals are metal fasteners used to secure polyester (PET) packing straps after tensioning. They are essential for locking the strap ends together, maintaining proper tension, and preventing slippage during handling, storage, and transport.
Polyester strapping seals are commonly used with manual sealing tools. They come in several types, including open (crimp) seals, serrated seals, and closed seals, each designed for specific load types and applications.
In short, these seals ensure that polyester strapping delivers maximum strength, stability, and safety for medium to heavy loads in logistics, manufacturing, and export packaging.
How to Use Polyester Strap Seals
Step-by-step:
- Wrap the PET strap around the load.
- Overlap the strap ends.
- Slide the seal over the overlapping ends.
- Tension the strap using a tensioning tool.
- Crimp the seal securely using a compatible sealer.
Tip: Ensure the seal matches the strap width to prevent slippage or damage.
How to Choose the Right Seal
- Strap width: Match the seal to the strap size (e.g., 13 mm, 16 mm, 19 mm)
- Load weight: Heavier loads require stronger, thicker seals
- Tool compatibility: Ensure the seal works with your manual tools
- Environment: For outdoor or export shipments, choose corrosion-resistant seals
Selecting the right seal ensures load safety, efficiency, and compliance with packaging standards.
Applications of Polyester Strap Seals
Polyester strap seals are used in a wide range of industries:
- Warehousing & Logistics: Pallets, cartons, bulk shipments
- Manufacturing & Assembly: Metal products, machinery
- Construction: Bricks, timber, building materials
- Export & Shipping: Containers, long-distance transport
In short, proper sealing ensures that polyester strapping maintains its full strength, keeps loads stable, and enhances safety for both operators and products.
