Ukusebenzisa kabusha amakepisi nezitsha kuvula amathuba okungcola, kusukela ku-solvent (uketshezi noma umhwamuko) ohlangana nezinto ze-septa kanye nomkhathi. Lokhu kungase kube nomthelela omubi kumiphumela yakho yokuhlaziya, okubangelwa ukungcoliswa kwesampula, ukusabela kwamakhemikhali, noma ukuhwamuka. Kokubili amaphutha ekhwalithi nenani angase abe umphumela, adinga isikhathi esiningi, ebizayo, futhi ekhungathekisayo nokuxazulula izinkinga nokusebenza kabusha.