The PPI is the practice performance index.
This index gives a value to the film applied to your load, based on test in your warehouse.
Forget about dart drop tests, tear resistance, ASTM and other scientific laboratory tests.
Hand wrap is done by hand. So test the performance in practice!
The PPI is a value of the efficiency of stretch film applied to your pallet. The PPI informs you how much film you need to apply 10 kgs of force to load on your products.
OK. But what does it tell me?
Simple. Just multiply the PPI value of your current film and the film applied by the Wrapplicator® (in your warehouse on your products) with the price per kg (or lbs.) of the net film.
Your current price for net film is € 1,85. The PPI for this film is 86,7. The value is 160,4
Same pallet wrapped with the Wrapplicator® and high performance film give a PPI of 33,8.
Net price for the high performance film is € 4 per kg ( first thought: that’s expensive!).
The value now is 135,2.
The “expensive” film is 15% more efficient and cost effective, so you will save 15% on the cost of wrapping your pallets !