I-PP-R, i-MT05-200Y (RP348P) yi-polypropylene random copolymer ebonakala ngokutyibilika okugqwesileyo, esetyenziswa kakhulu ekubumbeni inaliti. I-RP348P ineempawu eziphezulu ezifana nokucaca okuphezulu, ukukhanya okuphezulu, ukumelana nobushushu, ukuqina okuhle, kunye nokumelana nokutsalwa. Ukusebenza kwebhayoloji kunye neekhemikhali kwemveliso kuhambelana ne-YY/T0242-2007 "Izinto ezikhethekileyo zePolypropylene zeZixhobo zokuNyuselwa kwezonyango, ukuTshiswa kweNkomfa, kunye neZixhobo zokuNyuselwa kweNkomfa."