AbstractThe effect of soluble salts in porcelain enamel mill liquors was investigated, particularly relating to the enamel film strength and tearing tendency. The mechanism of tearing is discussed from the standpoint of the properties of the enamel slip and of dried enamel film. The related data are presented, and the application of the results of recent extensive studies of clay, water, and electrolyte systems to enamel slips is given.SummaryThe results of this investigation may be summarized in a flow sheet in which the various properties and conditions governing these properties are related to the characteristics studied. Figure 9 lists each variable in the sequence considered logical in this study.