Iyunithi yokuqala iyafana neyesibini.Ukuba ukongeza amanzi ke iyunithi ingasetyenziselwa ukususa umgubo wokushicilela.Iyunithi yesibini luyilo lwe-roller ezintathu, i-roller yayo yerabha ithatha izinto ezithile ukuze ikwazi ukugqoka imveliso ngesiphumo esihle.Kwaye ifanelana neoli esekelwe kumanzi / ioli kunye ne-blister varnish, njl njl. Iyunithi inokulungelelaniswa ngokufanelekileyo kwicala elinye.