Rana PFA pall giraanta waa shay baakad tayo sare leh oo hufan oo loogu talagalay in loo isticmaalo hababka kiimikada ee kala duwan. Waxa laga sameeyay walxo PFA (perfluoroalkoxy), giraantan pall-ka ahi aad bay ugu adkaysanaysaa daxalka, kulaylka, iyo kiimikooyinka, taas oo ka dhigaysa mid ku habboon in loo isticmaalo deegaannada warshadaha adag.