hot top enamel

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hot top enamel

photochemical processes

Learn about this topic in these articles:

photoengraving

In photoengraving: Plate coating and printing
“Hot top” enamels nearly always contain fish glue as well as some egg albumin, to which is added a dichromate sensitizer. Mixtures of glue and albumin are used when it is necessary to control the etch resistance and the ease with which the edges of…
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