skill in the art that polyvalent cations are ions that have more than one positive charge examples of polyvalent cations are calcium ca 2 magnesium mg 2 iron fe 2 and fe 3 and aluminum al 3 the surfactant can be cationic anionic nonionic or combinations thereof the surfactant used in this invention was kimberly clark u00ae professional pink lotion soap this soap is available from the kimberly clark corporation the mixture is then subjected to high shear for about 5 minutes as represented by box number 3 in the flowchart high shear is defined as at least 100 revolutions per minute rpm shearing devices including but not limited to household blenders can be used to shear the mixture the lubricant so formulated as represented by box number 4 in the flowchart is applied to a casting mold in any manner that is familiar to those skilled in the art of casting aluminum alloys it is believed that a major benefit of the lubricant of this invention is realized in uniformly distributing surface oxides at the meniscus during dc casting of aluminum however it is recognized by those skilled in the art that the lubricant of this invention can be used in any thermomechanical processing of aluminum and its alloys these processing steps include but are not limited to casting hot and cold rolling forging and extrusion referring now to fig2 a cross section of a dc casting mold 10 which can be used to cast aluminum alloy ingots according to the instant invention is schematically depicted the dc casting mold.