Shrink wrap
（重定向自Shrinkwrap）
![Tracing paper box wrapped by Polyolefin (POF) shrink wrap](/Images/godic/202502/10/Gateway-Tracing-Paper4835.jpg")
![A machine designed to continuously wrap up to 35 packets per minute](/Images/godic/202502/10/Schrumpffolie_Laminat_14835.jpg")
![Shrink wrapped OH-58 Kiowa helicopters to be shipped to Iraq.](/Images/godic/202502/10/US_Navy_030808-N-5613J-010_Army_OH-58_Kiowa_Warrior_helicopters_assigned_to_the_82nd_Airborne_Division_from_Fort_Bragg,_N.C.,_are_shrink_wrapped4835.jpg")
![Shrink film wrap being applied on a soft drink packing line](/Images/godic/202502/10/Shrink-wrapping_machine_by_OCME_S.r.L4835.jpg")
Shrink wrap, also shrink film, is a material made up of polymer plastic film. When heat is applied, it shrinks tightly over whatever it is covering. Heat can be applied with a handheld heat gun (electric or gas), or the product and film can pass through a heat tunnel on a conveyor.