Machine Grade & Hand Grade Polypropylene (PP) Strapping

Polypropylene strapping offers several advantages over other strapping materials. PP strapping performs reliably at a lower cost, making it the preferred choice for cost-conscious packaging operations. Machine grade polypropylene strapping and hand-grade PP strapping are both lightweight with no sharp edges, and their rust-proof composition makes them ideal for applications exposed to moisture or humidity.

What is polypropylene (PP) strapping, and what is it used for?

Polypropylene (PP) strapping — often just called "poly strapping" — is a lightweight, flexible plastic strap used to bundle, secure, and unitize light- to medium-duty loads such as corrugated boxes, cartons, and general palletized goods. It's the most widely used strapping material in commercial packaging thanks to its low cost, ease of use, and good elongation properties. Landen's polypropylene strapping line — including the Landen 380, Landen 511, Landen TX, and Landen HS-5 — is engineered to run reliably across a wide range of packaging and bundling applications, from manual hand-tool use to high-speed automated strapping machines.

What's the difference between hand-grade and machine-grade PP strapping?

Hand-grade PP strapping, like Landen's HG-12, is designed for manual strapping using hand tools and tensioners, and is best suited to medium- to heavy-duty applications where a machine isn't required. Machine-grade PP strapping — such as the Landen 380, 511, TX, and HS-5 lines — is formulated with tighter tolerances for optimal breaking strength, elasticity, and tensile strength so it runs consistently through high-speed automatic and semi-automatic strapping machines. Using the wrong grade in the wrong equipment can cause jams, inconsistent seals, or downtime, so it's important to match your strap grade to your tools before ordering.

How does polypropylene strapping compare to polyester (PET) strapping?

Polypropylene strapping is best suited for lighter, compressible, or shorter-term loads where high retained tension isn't critical — it's more economical and easier to handle than polyester. Polyester (PET) strapping, by contrast, offers a higher break strength and retains tension over longer periods, making it the better choice for heavier, non-compressible loads like lumber or bricks, or loads that will be in transit or storage longer. If your application calls for higher tensile strength than PP can provide, Landen also offers a full line of polyester strapping as a direct upgrade path.

What width and thickness of PP strapping do I need for my application?

The right width and thickness depends on your load weight, packaging line speed, and whether you're using a hand tool or a strapping machine. Landen offers machine-grade PP strapping in multiple sizes — including the 3/8" Landen 380 for light- to medium-duty, high-speed lines, the 1/2" Landen 511 for medium- to heavy-duty high-speed machine applications, the 5mm Landen HS-5 for high-production lines, and the heavy-duty 1/2" Landen TX for applications requiring maximum tensile strength. Landen's team can help match the correct width and thickness to your specific strapping machine and load requirements.

Can I get polypropylene strapping customized, and where can I buy machine-compatible PP strap?

Yes — Landen's PP strapping is available in multiple thicknesses and custom colors to fit your specific packaging and branding requirements. Because Landen supplies both the strapping machines and the strapping material, you can source machine-compatible, correctly matched PP strap directly from a single supplier rather than risking compatibility issues from mismatched third-party strap. This also means ongoing support and consistent supply for whichever Landen strapping machine your line is running.