Classification of Enamels

There are different classifications for enamel, according to application or chemical composition. These are partly overlapping. In this section an introduction is given based on two classifications  

In principle, enamels can be applied as a single layer or in multiple (two) layers The layers can be stoved separately or together. The classic processes operate with ground coat and cover coat enamels and one stoving per layer. 

Typical ground coat enamel compositions are given in Table 5.4-1. 

Enamels can be applied in single or multiple layers. In multilayer application  

Cobalt and nickel oxides are necessary for a good adhesion between steel and enamel. These adhesion-promoting oxides are indispensable, particularly in the case of non-pickled objects which have only been degreased. 

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