Uma okuqukethwe kwe-chromium kungu-3% noma ngaphezulu, kunezinga elingcono lokuqina nokumelana nokugqoka, futhi ungathola ungqimba oluqinile olujulile, olungahlangabezana nezidingo zokugijima okusheshayo nokugijima okukhulu. Ama-roller ensimbi asezingeni eliphakathi kokushesha ayuhlobo lwezinto zokugaya ezihlanganisa izici zensimbi esheshayo kanye nensimbi ejwayelekile yokusebenza. Zisetshenziswa ikakhulukazi enqubweni yokugaya insimbi, ikakhulukazi zisetshenziswa kakhulu ekugayeni okubandayo noma ezimeni zokugaya ezishisayo eziphakathi nendawo kuya phezulu.