We stock blown and cast pallet wrap – hand wrapping and machine wrap.
Stretch film comes in varying thicknesses, colors and can be used in numerous applications but mainly for wrapping pallets. The main variable and starting point for stretch films is blown versus cast.
- Blown stretch wrap, is created by blowing heated resin out vertically into a bubble. The bubble is then transformed into rolls while it is cooled by the surrounding air.
- Cast stretch wrap is created by feeding a sheet of heated resin along with a rolling path with chilled rollers. The cooling solidifies the film, and it is made into large rolls.
- 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 than cast, making it stick to itself easier.
- 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.
- Blown film is recommended for wrapping loads with sharper edges, machinery, parts, bricks etc.
- Cast film is recommended for wrapping lighter loads.
PAKWRAP 500 x 375m 20mu is the most common wrap we sell – 98% of the time this is the one.