The density of PP is between 0.895 and 0.92 g/cm³, therefore the Polypropylene is commodity plastic with low density.
With lower density, molding parts with the lower weights and more molding parts of the certain mass of plastic can produced.
The young’s modulus of the Polypropylene is between 1300 to 1800 n/mm2.
Polypropylene is normally tough and flexible and it is reasonably economical.
Polypropylene has good resistance to fatigue.
In 2015, the global market of Polypropylene was about 60 million Tons and ongoing by years.