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Photoetching Source?


#1

Does anyone know of a reliable photoetching company? I would
appreciate any suggestions. I want to etch 12 gauge copper, if
that makes any difference as far as recommendations go.

Thanks in advance!

Kim


#2

If you would consider tackling the etching project yourself,
etching on copper is really pretty easy and straightforward (and
relatively non-toxic). The photoetching can be accomplished with
something called PNP Blue Paper, although technically it would
probably be called “transfer etching” rather than “photoetching”.
A high contrast photographic image is xeroxed onto the film, then
the image is transferred to the metal with a clothes iron. The
xerox toner acts as a resist for the etchant. If you’d like more
I can walk you through the process via email. Feel
free to contact me.

Rene Roberts
@sunhotmoon


#3

Someone wrote an article on this…does anyone remember where?
Where does one buy the transfer paper? I’m less worried about
the transfer than the acid. Elaine


#4

I believe the article you are referring to was in a 1997 issue
of METALSMITH,either spring or fall issue, written by Cathy
Woods…For further info contact me at @DrDule. Good Luck.
J.Z.D.


#5

Elaine- have you tried etching with Ferric Chloride yet? You can
get it at radio shack. See instructions in “Complete Metalsmith”.
It works pretty well. I still wear rubber gloves, and take lots of
care with it. Anne


#6

PNP transfer paper may be ordered from Technics Inc. in
Flemington, NJ. The phone number is 908-788-8249. The price is
20 sheets for $30 or 40 sheets for $50. This stuff works
extremely well. I have etched very detailed lettering and
designs into copper with complete success. The paper comes with
complete instructions. The article to which you refer was in the
Summer 1997 issue (I believe, though it could’ve been Spring) of
Metalsmith. The artist used the paper to etch designs for
champleve enameling. If you etch on copper, you can use feric
chloride which is not an acid. It is available at your local
Radio Shack.
–Vicki


#7
Someone wrote an article on this...does anyone remember where? 
Where does one buy the transfer paper?  I'm less worried about
the transfer than the acid. Elaine 

G’day Elaine; I can’t remember if the original request was for
etching copper or silver. In the case of copper etching, there
is no need for acid: a solution of FERRIC CHLORIDE won’t eat your
clothes but will eat copper nicely without fuss. You could get it
from places which sell radio components, as it is used for
etching circuit boards. But ferric chloride won’t etch silver.
You do need strong nitric acid for that, or it can be done
electrolytically in a sodium cyanide bath. Don’t like cyanides
either? Sorry, but I don’t know of anything else which dissolves
silver easily. Cheers,

       / \
     /  /
   /  /                                
 /  /__| \      @John_Burgess2
(______ )       

At sunny Nelson NZ in late winter/early spring with lambs, daffs, tree
blossoms, Cold starry nights, cold sunny days


#8

Someone wrote an article on this…does anyone remember where?
Where does one buy the transfer paper? I’m less worried about
the transfer than the acid. Elaine

Hi Elaine,

I wrote an article on photoetching using overhead transparency
sheet as the carrier for the toner resist. It was in the
Lapidary Journal, split between the June and July issues, 1998.

Overhead transparency sheet is easy to locate at any stationary
or office supply store. It’s inexpensive and a good way to learn
this particular process if you have no previous experience. Once
you’re comfortable, then switch to the PnP. This acetate
transfers the toner at a much lower temperature, about 275
degrees F. It has a lot of advantages over the transparency
sheets. The resist holds up better, allowing a deeper etching.
Much finer detail is possible without pitting, and it’s much
easier to transfer to the metal. It is more expensive. This is
a source for the PnP acetate:

Techniks Inc.
P.O. Box 463
Ringoes, NJ   08551
http://chelsea.ios.com/~techniks
20 sheets/$30

I would like any feedback from you on your progress with this
method of etching. Good luck!

Katherine Palochak