Shrink film is a substance comprised of a variety of polymeric resins which during the extrusion process are heated and mixed to produce a continuous sheet of material commonly wound on rolls. Shrink film is commonly wrapped around a product and when heat is applied to the material, it contracts tightly around the product.
The unscientific answer:
Shrink film is plastic that shrinks around a product when you hit it with heat from a heat gun or shrink tunnel. It can be made from PVC (Reynolon) or Polyolefin (Bollore, Sealed Air).
While the terms are often used interchangeably, heat shrink wrap is not the same as pallet stretch wrap. Unsure of which film is right for you? We've been doing shrink film for more than 20 years and can get you pointed in the right direction.