Fekthering ea rona ea ho etsa ente, re sebetsa ka thata ho theha litanka tsa polasetiki tse ikamahanyang le litlhoko tsa hau tse ikhethileng. Litanka tsa rona tsa polasetiki tsa boleng bo holimo li etselitsoe matla, ho tšoarella, le ho hana ho lutla, ho li etsa hore e be tse loketseng liindasteri tse fapaneng, ho kenyeletsoa lisebelisoa tsa likoloi, tsa temo le tsa indasteri.
Re sebelisa mekhoa e tsoetseng pele ea ho bopa, re netefatsa meralo e nepahetseng le linako tsa tlhahiso e potlakileng, re fana ka litharollo tse bolokang chelete ntle le ho sekisetsa boleng. Selekane le rona bakeng sa litanka tsa polasetiki tse tloahelehileng tse fihlelang litlhoko tsa hau hantle, tse tšehelitsoeng ke boitlamo ba rona ba ho sebetsa hantle sehlahisoa se seng le se seng.