kordkasutusega isekõvenev [valu]vorm, mis leiab kasutust valandite tootmisel madala sulamistemperatuuriga metallisulamitest (peam Al-, Mg-, Zn-sulamid ning mõned Cu-sulamid), an expendable mold made of plaster of Paris instead of sand and used to the casting of lower melting point alloys such as aluminum, magnesium and some copper-base alloys