polypropylene strap

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Metallocene film is a new hybrid stretch wrap that offers up to twice the polypropylene strap tear and puncture resistance of conventionally manufactured films. metallocene resins are cleaner, stronger, and tougher than conventional resins like octene, hexene, and butene. metallocene film is available in rolls that require a hand dispenser. packaging supplies company stocks metallocene strap film that is 16" wide and ranges from 14-19 microns. gauge chart the thickness (and therefore strength) of stretch wrap is polypropylene strap measured in gauge or microns. a larger number means more thickness and more strength. refer to the chart below for comparisons with other common measurements.

packaging supplies company''s boxes are "200 lb burst test" certified. (we do carry some "275lb burst test" certified boxes too.) this means that strap the corrugated walls of the box would require 200 pounds per square inch of force to break through the wall of the box. the burst test has been a standard certification for years. polypropylene strap more recently a new certification test has strap started to be used called the edge crush test (ect). generally, 200lb test boxes are 32 ect. ect is the edgewise-compressive strength, parallel to the flutes of polypropylene a short column of corrugated fibreboard. strap test results are reported as the pounds per inch required causing compression failure. ect relates directly to box compression strength which is important in today''s world of box stacking. for certain items, mailing supplies provide a complete protective package that polypropylene is ready to ship. save time, labor, packaging and shipping costs by using mailing supplies. packaging supplies company offers the following styles of mailing supplies:

strapping terms break (or tensile) strength: the amout of force, strap expressed in pounds, required to break the strap. elongation: polypropylene this strap is the amount of stretch in the strap as force or tension is applied. elongation is generally polypropylene expressed strap and polypropylene and strap in the working range which is 40-60% of the break strength.elongation recovery: this is the strap''s ability to recover to its original state after tensioning.shock resistance: this is the strap''s ability to stretch and return to its original state without breaking when subjected to sudden impact. split resistance: the strap''s ability to withstand lateral tears. cushioning protect contents from vibration, impact or shock. fragile and/or high value products with extended shipping or storage cycle times (weeks) require different polypropylene cushioning products than items that are less fragile, medium weight and have shorter shipping and storage cycles. strap void fill space easily in and around the packaged contents while providing some basic cushioning. surface protection conforms to a desired shape and prevents marring or scratching.