Stretch film comes in varying gauges, colors and can be used in numerous applications.
The main variable and starting point for stretch films is blown versus cast.
- Blown stretch film
Blown film is tougher and has less of a chance to puncture than cast. This occurs due to the slower cooling process, which allows the molecules in blown film to spread out as opposed to aligning in long lines like in cast. Blown film also has a higher level of cling (think Reynolds Wrap) than cast, making it stick to itself easier.
- Cast stretch film
Cast stretch wrap has a clear, glossy finish allowing RFID and other scanning technology to be used with it while blown is hazy and dull. Cast stretch film unwinds much quieter than blown. It is also easier to stretch and control the gauge with cast film.
As you can see, both films have their strengths and weaknesses.
So, the most important question is:
Which stretch film best fits your application?
Factors to keep in mind include:
- What type of machine is being used, if not applied by hand?
- What kind of load is being wrapped (even load or puncture points)?
- Where does your skid go after leaving your dock?
- How many variants of load does your facility wrap?
Download information about our Machine Film and Handiwrap.