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Re: Etching Question

Yes,  Zinc will oxidize especially noticable with light colors.  I don't find
that copper oxidizes much at all.

a printmaker

john renjilian wrote:

> >Copper always oxidizes and zinc does not,
> Not being either a printmaker or a metalurgist I need an explanation.  I
> have a proof printing plate for the cover of a 1960 Golden Book, made of
> what I thought was zinc, and I would have described it as oxidized.  Is
> there another term I should be using? or is it another metal?  It was a
> proof for the cover design, intending to be changed in the final design, so
> it wouldn't have had to print many copies.
> John Renjilian

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