Polypropylene strap (oriented or tensilized) is an
economical material designed for light to medium duty unitizing, palletizing
and bundling. It is available in various widths, thicknesses, and polymer
variations (e.g., copolymers). Some polypropylene is embossed or printed.
Stretch wrap or stretch film is a highly stretchable plastic film that is
wrapped around items. The elastic recovery keeps the items tightly bound. In
contrast, shrink wrap is applied loosely around an item and shrinks tightly
with heat.
