PET strap (polyester strap) derives its strength from the molecular weight of its raw material, which is measured by intrinsic viscosity (IV). The typical IV range for high-quality PET strap is 0.60 to 0.95 dl/g.

Choosing the right PP strap (polypropylene strap) width is critical for load security, equipment compatibility, and cost efficiency. PP strap is available in standard widths from 5mm to 19mm. Narrower straps (5–9mm) suit light cartons and e-commerce, while wider straps (12–19mm) handle heavy pallets and industrial loads.

PP strapping (polypropylene strapping) typically offers break forces ranging from 45kg to 230kg, depending on width, thickness, and manufacturing grade. This range accommodates applications from light carton sealing to heavy-duty pallet bundling.