Lifaha tse phaphametseng ke libolo tse molora tse ka phaphamalang holim'a metsi.Li na le bosoeu bo boputsoa, ​​​​li tšesaane ebile ha li na letho, 'me boima ba tsona bo bobebe.Boima bo bongata ke 720kg/m3 (boima), 418.8kg/m3 (leseli), le boholo ba karoloana bo ka bang 0.1 mm, bokaholimo bo koetsoe ebile bo boreleli, conductivity ea mocheso e nyane, mme refractoriness ke ≥1610℃.Sebopeho sa lik'hemik'hale tsa lifaha tse phaphametseng haholo-holo ke silicon dioxide le aluminium oxide.E na le litšobotsi tse ngata tse kang likaroloana tse ntle, tse se nang letho, boima bo bobebe, matla a phahameng, ho hanyetsa ho roala, ho hanyetsa mocheso o phahameng, ho kenya mocheso, ho kenya letsoho le ho thibela mollo.E sebelisoa haholo ho E 'ngoe ea lisebelisoa tse tala bakeng sa indasteri ea refractory.