Extreme Wear resistant solutions from CUMI Ceramics. Molten metal handling applications in metallurgy processes require extremely high thermal shock resistance, low thermal conductivity and non-wettability properties. Our CUMITHERM™(for non-ferrous) & CUMITHERM-Z ™( for ferrous) formulations have been designed to suit for high temperature molten metal environments in cast-houses and foundries. These properties are achieved by combining High purity alumina and titania in a precision controlled reaction-sintered process to engineer a microporous microstructure.