Shrink wrap systems are commonly used by various industries to protect their products from moisture, dirt, and damage during storage or transport. Shrink wrap is also a quick and simple way to keep items neatly organized. Plastic film, made of PVC, Polyolefin or polyethylene wraps around the objects.When the film is heated, it shrinks, conforming to the shape of the object and sealing it from outside elements. Shrink wrap systems may be handheld, or automatic machines with a high throughput that.