Ipuleti lensimbi engenasici linendawo ebushelelezi, ipulasitiki ephezulu, ukuqina namandla emishini, futhi imelana nokugqwala ngama-acids, amagesi e-alkaline, izixazululo neminye imidiya.Yinsimbi engagqwali kalula, kodwa engagqwali nhlobo.Ipuleti lensimbi engagqwali lisho ipuleti lensimbi elimelana nokugqwala ngenxa yemithombo yezindaba ebuthaka efana ne-atmosphere, isitimu namanzi, kuyilapho ipuleti lensimbi elimelana ne-asidi lisho ipuleti lensimbi elimelana nokugqwala ngemidiya egqwala ngamakhemikhali njenge-asidi, i-alkali, kanye nosawoti.