Influence of the grain size of glass frits on the characteristics of glass enamels

Abstract

Glass enamels, like porcelain decals, consist of a pigment in a glass flux (frit), but must be capable of being fired-on at low temperatures. Susceptibility to chemical attack and a reduction in the mechanical strength of the enamelled body are two disadvantages of enamels. An attempt to improve these properties by altering the fineness to which the glass frit is ground is described in this paper. Several glass frits were used, each ground to three different grades. The effect on colour, lustre, dishwasher durability and mechanical strength was investigated.