Plastic strapping encompasses three major types of strapping, including polyester strapping, polypropylene strapping, and nylon strapping. Read more on the advantages of each and the advantages they individually have to offer to your specific packaging application.
Below are a few key points to reference in regard to polypropylene, polyester and nylon strap.
Polypropylene strapping, polyester strapping, and nylon strapping clarified
Polypropylene Strapping - least initial tightness after joint is created and highest relaxation over time.
- Lowest tensile strength and abrasion resistance of the three types of plastic strapping.
- Polypropylene strapping is ideal for lightweight loads
- Lowest cost strap
Polyester Strapping - Much stronger than polypropylene strapping.
- Polyester strapping does not elongate, but its initial tightness on the load is retained over time.
- Polyester Straps can become loose, like steel strap, if a load shrinks or shifts in transit.
- More likely for this strap to break vs. polypropylene or nylon strapping (both of which will elongate and snap back).
- Polyester strapping falls intermediate in price between polypropylene strapping and nylon banding.
Nylon Strap - often referred to as a superior nonmetallic strap.
Back in the 1960s, DuPont developed a process that brought nylon strapping into the forefront of packaging operations. Oriented nylon strapping imparts a break strength three to four times that of an un-oriented nylon strap, which makes it strong enough to tightly secure pallet loads during shipments.
- Nylon strap elongates approximately 7% and retains this extra tension over time when applied to a pallet load.
- If a load shrinks or shifts during transit, the nylon strapping material recovers and shrinks back to maintain a tight grip on the load.
- Momentary additional elongation will occur and prevent strap breakage if the load is dropped.
- Nylon strapping exhibits the best impact strength and abrasion resistance of any other strap product.
- Nylon strap can be heat sealed, friction welded, or joined with scored metal or grit seals. The center of the strap is embossed allowing for superior grip in the friction weld process, while the smooth edges weld at a slower rate, improving the overall joint strength.
- Nylon strapping is priced such that many users regard the incremental additional price as an insurance premium against loose and/or broken straps, especially with shipments of higher value goods. It is one of the most cost effective of all strapping materials.
Nylon Strapping Applications:
Nylon strapping can be used in varyingapplications; just a few packaging applications are listed below:
- Unitizing - unitizing is generally used when bringing together boxes or products with the same shape. Most commonly unitizing refers back to a basic "A load."
- Bundling - Bundling is used when pulling together smaller products, thus making the loads easier to handle.
- Palletizing - When products are placed on a pallet and secured, this is called palletizing. Palletizing does not require uniformity.
- Skidding - skidding is similar to palletizing only it is used with products which are much heavier - such as steel, paper, and aluminum rolls, for example.
- Closure - many times boxes or totes, for example, are secured and closed with nylon strap so as to not damage the outside packaging.
- Securement - Securement occurs when the nylon strap is used to ensure that the product stays in a desired placement - such as large coils being kept from unwinding.
- Reinforcement - Nylon strapping can be used to further increase the security of a product in a vessel.
- Baling - Baling is used to keep loose products together by wrapping the nylon around the circumference of the product - such as cotton, synthetic fibers, etc.
- Car loading - Many products previously secured on rail cars by steel strapping are now being secured by nylon strapping. Examples of such products include paper rolls, lumber, large pipes, machinery and other similar products.
Industries using nylon strapping:
- Lumber and Wood Products
- Paper Industry
- Printing, Publishing or Allied Industries
- Plastics Pipe
- Aluminum Extruded Products
- Metal Doors, Frames, Molding, and Trim Manufacturing
- Commercial Equipment
- Furniture Industries
- and more!