The masterbatch e etsoa ka ho hlomathiseletsoa organic antimicrobial agent(polyguanidine salt) ka har'a lipolasetiki ka methati e mengata ea polymerization le phetoho.Lifilimi tse thibelang likokoana-hloko, liboto le lihlahisoa tse ling tsa polasetiki li ka etsoa ka ho eketsa masterbatch ka hare.Ha ho bapisoa le li-plastiki tsa inorganic antimicrobial (silevera, koporo, zinki oxide), sehlahisoa sena se na le lebelo le potlakileng la antimicrobial le phello e ntle ea ho thibela li-fungus le kokoana-hloko.