1, ka mor'a tšebeliso ea limela tsa tšepe li tlameha ho behoa holim'a sethalafo se inehetseng, se bolokiloeng fekthering e nang le moea o motlakase, e omeletseng, e hloekileng, ka letsoho.

2, bokaholimo bo lokela ho lula bo sireletsa mafome, bo sa lumelloe ho acid, alkali, letsoai, likhase tsa lik'hemik'hale le polokelo ea mongobo.

3, e thibetsoe sebakeng sa polokelo ea mocheso o phahameng.

4, kamehla hloekisa likarolo tse potolohang, lubricant tse tloaelehileng, ho thibela likhohlano tse omileng, ts'ebetso ea jamming.