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CO-EXTRUDED POLYESTER (COMPOSITE)
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Production
- polyester fibres are laid alongside one anonther and drawn through a die gap where the fibres are melted with polyester creating strapping
- the strapping is then drawn through a water bin to cool off, is possibly printed and is wound onto a roll
- the diameter and number of the fibres determine the width of the strapping
Disadvantages
- difficult to use, the strapping is fairly stiff and rigid, especially at lower temperatures
- slackens within a few hours (loss of tension, dependent on ambient temperature)
- if tightened hard then the PET layer of the fiber is stripped off in the buckle
- tears very easily in the longitudinal direction along the fibres
- becomes plastic at more than 30 degrees Celsiusor or 86 degrees Fahrenheit
Application
- strapping of pallets with a heavier load
Dimensions
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- 1.0 - 1.5 inch = 25 - 32mm
Fastenings used
- steel buckle (flat seals are not strong enough)
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