Stretch Film – Cast vs. Blown

Stretch films from both production methods are available in a variety of grades which perform equally well on all types of stretch machinery and through many types of stretch mechanisms. However, there are a few areas where cast and blown films are not totally interchangeable.

Occasionally there is a specific requirement that determines the choice of stretch film. Otherwise the choice is determined by the customers or manufacturers preference. The customer may be happier with the look or feel of a particular type or just be reluctant to change. The supplier may prefer to sell the type that is most readily available. Although both cast and blown films are generally interchangeable, there are some specific difference between them: