Polyolefin Shrink Film, is a material made from polymer plastic film. When heat is applied, it shrinks tightly over whatever it covers. Heat can be applied with a hand held heat gun (electric or gas) or the product and film can pass through a heat tunnel on a conveyor.
Polyolefin Shrink Film is commonly used as an overwrap on many types of packaging, including cartons, boxes, beverage cans and pallet loads. A variety of products may be enclosed in shrink wrap to stabilize the products, unitize them, keep them clean or add tamper resistance. It can be the primary covering for some foods such as cheese, meats, vegetables and plants. Heat-shrink tubing is used to seal electric wiring. They are commonly used within industrial applications using a heavier weight Polyolefin shrink film. The principles remain the same with a heat shrinking process using a hand held heat gun.