Abstract: A method for casting objects having complicated shapes from aluminum, zinc, non-ferrous metals and the like, for use in the industrial arts, comprises the steps of using a completely combustible and gasifiable foam material to constitute a form in which the objects are cast, removing a thin surface layer of the foam from those surface areas where a wall thereof could be damaged by flowing melted metal, where ornamental elements or profiles are to included in the objects prior to casting, or where the rate of flow of melted metal is to be decreased, substituting the removed foam layer by a protective layer of a material with a stronger structure, lower thermal conductivity, lower burning and gasifying rates than those of the material of the foam casting form, reconnecting the separated foam and protective layers by gluing, embedding the casting form into sand, pouring melted metal into a recess defined by the foam form while in the sand and delaying and regulating the burning of the foam during the pouring of