Casting ke e 'ngoe ea liindasteri tse sebelisoang haholo bakeng sa li-filters tsa ceramic tsa foam. Mosebetsi oa eona ke ho etsa hore tšepe e qhibilihantsoeng e be e boreleli, e ts'oanang le e hloeke ka mor'a ho feta ka lesoba la mahe a linotši la ceramic ea foam, ka hona ho fokotsa haholo sekhahla sa ho hana ho lahloa ho bakoang ke ho lahlela liphoso tse kang li-inclusions tse se nang tšepe le ho boloka litšenyehelo tsa tlhahiso.

Lisebelisoa tse ntle tse tala le theknoloji e tsoetseng pele ea tlhahiso li netefatsa hore filthara e na le mamello e tsitsitseng ea litekanyo, 'me ka nako e ts'oanang e fihlela litlhoko tsa ho etsa mohlala oa matsoho le mela e sebetsang hantle ea tlhahiso ea mochini, le ho netefatsa hore boleng ba sehlahisoa sa setsi se kopana le maemo a machaba a boleng. Alumina foam ceramic filthara, e loketseng mocheso oa 1250 ℃, e loketseng ho sefa le ho hloekisa tharollo ea aluminium le alloy. E le ho finyella litlhoko tse ntseng li eketseha tsa boleng ba li-castings tsa aluminium, tšebeliso ea li-filters tsa ceramic tsa alumina foam (lipoleiti) e ntse e e-ba bohlokoa le ho feta. Lisefe li boetse li sebelisoa haholo ho lahla lehlabathe le tloaelehileng joalo ka ho lahla hlobo e metsi le ho lahla hlobo e sa feleng joalo ka likarolo tsa aluminium tsa koloi.