I-Polypropylene, uhlobo lwe-polymer ye-opalescent engenabo ubuthi, engenaphunga, engenambitheki ene-crystallization ephezulu, iphuzu lokuncibilika phakathi kuka-164-170℃, ubuningi phakathi kuka-0.90-0.91g/cm3, isisindo sama-molecule singaba ngu-80,000-150,000. I-PP ingenye yepulasitiki elula kunazo zonke izinhlobo okwamanje, ezinzile ikakhulukazi emanzini, kanti izinga lokumuncwa kwamanzi emanzini amahora angama-24 lingu-0.01% kuphela.