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Stretch film, or stretch wrap, is a highly elastic and stretchable plastic film used for packaging and securing products on palettes or bundling items. It is commonly used in the logistics, warehousing, and shipping industries to preserve goods during transit and storage. Stretch film is composed of linear low-density polyethylene (LLDPE) resin, which imparts stretchability.

Stretch film is applied by wrapping it around a pallet or group of items to create a compact, secure enclosure. It adheres to itself when stretched, providing exceptional load containment and stability. The film's elasticity enables it to try and return to its original shape, exerting constant tension on the packaged items and holding them tightly together.