Production of Coatable Systems

For wet coating, enamel frits are converted into aqueous suspensions (slips) by grinding together with  

In wet coating processes, which are still more widely used, aqueous suspensions, so-called slips, are used (see Section 5.4.3.4.1). Slips are produced by grinding granules or flakes in lined ball mills. The frits are ground together with grinding aids, the mill admixtures. Mill admixtures are (with respect to the frit weight)  

The milling time depends upon the frit type, the degree of filling of the mill and the degree of grinding required. Grinding times of ca. 4 hours are generally aimed for. 

The amount of water is adjusted so as to give a slip density between 1.6 and 1.8 g/mL, deionized water being generally used. 

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