Polypropylene strapping is the most economical of all strapping material due to it's light weight and versatility. It is available in a wide variety of sizes and gauges and offers the greatest elongation of any strapping type, along with good initial recovery characteristics. Samuel polypropylene can be heat sealed with a joint efficiency of 70 to 80%. Polypropylene strapping is very flexible and simplifies the job of strapping by its ability to mold to contours of odd-shaped or irregular shaped packages.