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Strapping Terms Break (or tensile) Strength: The amout of force, expressed in pounds, required to break the strap. Elongation: This is the amount of stretch in the strap as force or tension is applied. Elongation is generally expressed 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 cushioning products than items that are less fragile, medium weight and have shorter shipping and storage cycles. 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. If you were simply getting an estimate of freight charges, you may continue browsing, or move on to a different site and the order will be abandoned. packinglisttape and packinglisttape Questions: If you have any questions about our products, delivery, or web ordering email us at support@Packaging Supplies Company.com or Packaging Supplies Company was started by people who have spent a lot of years doing just what you''re doing…packing products and shipping boxes. We understand how much time, money and effort goes into attracting and retaining your customers - you certainly don''t want your shipment to arrive damaged! Our experience in your shoes has taught us how important it is to have the right packing supplies delivered when you need them at competitive prices.The Right Stuff We offer thousands of products (including more than 400 different box sizes) so you can find exactly what you need. And we only offer items that we have used in our own warehouses…we know these products will perform for you because they have performed for us. Polyester is the most rigid of all strapping materials. It elongates significantly less than polypropylene and retains tension over a longer period. Polyester is nick resistant and can be sealed with seals, heat or friction welds. Because polyester offers the greatest strength and highest retained tension of all plastic strapping, it is frequently used on heavy duty loads that need high initial tension along with high retained tension during handling and storage. Common applications are empty cans and bottles, lumber and heavy, rigid palletizing. Polyester has a smooth, shiny finish and is easy to dispose of and recycle.Polypropylene strapping is the most commonly used and least expensive of all strapping materials. It is light and easy to apply and recycle. Characteristics include high elongation and elongation recovery, but low retained tension. Polypropylene is an excellent choice for light duty palletizing, unitizing, carton closing and bundling. Because packinglisttape of its embossing (or waffle) pattern, strap thickness is not a useful measurement. A standard 1/2" machine grade strap can be embossed to a thickness of anywhere between .014 and .030, depending upon how deep the embossing pattern is. An overly embossed strap will be thicker, but will have a lower break strength. Carton Reinforcement: A 3:1 ratio of strap to carton weight is recommended. For a 100 lb package this could be done with (1) 300lb tensile strap or (2) 150lb straps. Unitizing and Bundling: A 5:1 ration of strap to carton weight is recommended. Palletized Cases: Required Tensile Strength = (Pallet Weight x 1.5) / # of Straps
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