ENAMEL COMPOSITIONS

摘要

ENAMEL COMPOSITIONS A fluorine-free frit composition containing a high content of boron oxide and a relatively low amount of titanium oxide is provided. In a preferred embodiment, the composition contains a small amount of cobalt oxide. The composition is suitable for the preparation of frits which may be applied by either the dry and wet methods of application to obtain enamel cover coats. In particular, the frit is suitable for use in the electrostatic method of frit application on steel substrates. The composition of the invention is particularly suitable in "two coat-one fire" applications. The enamel produced from the frit of the invention is characterized by its virtual freedom from pitting, relatively high acid resistance and exceptional color stability.