[alt-photo] Re: Gum Bichomate used as a resist for metal printing

[Keith Gerling]

Erie, what I'm actually looking to do is create the artwork out of the metal
itself.  The work that I referred to earlier was on steel, and the images
were very rough and had several different colors of rust.  I seem to recall
that different salts were used for different colors.

On Sat, Feb 5, 2011 at 11:14 AM, erie patsellis
<erie at shelbyvilledesign.com>wrote:

> Polymerized, with dichromate, then etched in a copper sulfate/sodium
> chloride mordant works quite well with both zinc and aluminum. As to
> removing the gum, I don't bother, just ink it up and run it through the
> press, works fine and gives you just a hint of plate tone, which I prefer in
> my style of printmaking work.
>
> erie
>
>
> On 2/5/2011 10:24 AM, Michael Koch-Schulte wrote:
>
>> I think that wouldn't work -- in traditional intaglio at least -- as the
>> gum would dissolve into the ferric chloride bath, both being soluble in
>> water. Maybe air oxidation would work on steel but that could take quite a
>> while. Maybe using a pinch of nitric acid in solution with something oily
>> though. I've used gum arabic with nitric acid to mask/etch litho stones
>> which is a water-oil process.
>>
>> ~m
>>
>> On 2/5/2011 6:12 AM, Keith Gerling wrote:
>>
>>> Some years ago I remember seeing some links to some metal work.  I
>>> believe
>>> the artist used gum to create a resist and then allowed corrosion to
>>> create
>>> the image on steel.  Does anyone have these links bookmarked?
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