Njengenxalenye ebalulekileyo yezixhobo zokukhanyisa zangaphandle, izibonda zokukhanya zesitrato ze-aluminium ziyimfuneko ukuze zibe nokumelana nomoya omhle. Kwinkqubo yokusetyenziswa, ukuba udibana nemozulu embi, efana nemimoya ephazamisayo, imvula enkulu kunye nezinye imozulu embi kakhulu, kungekhona nje umphumo wokukhanyisa ochaphazelekayo, kodwa kunye nochungechunge lwemiba yokhuseleko lubangelwa, oluya kubangela ingozi enkulu kubomi babantu kwaye impahla. Ngoko ke, ukuphucula ukuxhathisa umoya kwiipali zokukhanya kwe-aluminium i-alloy kubaluleke kakhulu ukuqinisekisa ukhuseleko lobomi babantu kunye neepropati.