Imaging with Dry Film and Related Processing Equipment for Chemical Milling Application

There is a tradition of several centuries to the principle of structuring materials such as glass, metal and minerals by wet chemical etching while protecting certain surface parts with resist layers. Such resists would be applied either singly according to the desired image, or solidly, and then mechanically removed for stencil production. In the Renaissance, for instance, iron armour used to be decorated with a vinegar-based etching medium and a resist based on linseed oil.


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