RE: Liquid Emulsion Questions
- To: alt-photo-process-l@usask.ca
- Subject: RE: Liquid Emulsion Questions
- From: Robert <rc3@flash.net>
- Date: Mon, 25 Sep 2006 18:52:07 -0700
- Comments: "alt-photo-process mailing list"
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I would suggest you use clear acrylic jesso. It will give tooth for your
emulsion to stick to. I print gum on birch plywood. The 1.4 may get a slight
warp after three to four soakings. 1/2 will not warp but is heavy. I frame
my work on wood when it on 1/4 inch wood and that makes it flush again. The
1/2 I do not frame but paint the edges to mach the print.
Best Regards,
Robert
-----Original Message-----
From: Camden Hardy [mailto:camden@hardyphotography.net]
Sent: Sunday, September 24, 2006 10:18 AM
To: alt-photo-process-l@usask.ca
Subject: Re: Liquid Emulsion Questions
Polyurethane varnish also works pretty well with liquid emulsion. As John
mentioned, I would recommend coating the entire board to completely seal
it from the chemistry...that way the wood won't warp.
Camden Hardy
camden[at]hardyphotography[dot]net
http://www.hardyphotography.net
On Sun, September 24, 2006 10:20 am, John Cremati wrote:
> I have coated wood with thick layers of a diazo emulsion in
> the
> past....... What I did was to apply numerous coats of a sandable sanding
> sealer to the wood sealing it totally....... I only needed it done on the
> front but from what I can see in your case, you would have to do the
> entire
> piece......... I imagine lacquer or shellac would work as well.... The
> soak
> time frame may be limited though depending what you use........... If you
> do
> not do this you will get sever warpage beginning almost immediately even
> if
> you just coat the surface......
> Is it possible that you just coat only the front surface using a
> brush on method and then create a dam around the peice to devlelope , fix
> and rinse.....
> Also You could build a recirculating flood system by just drilling
> small holes over a length of PVC, caping it at one end and then run a
> tube
> to a small pump and well in some sort of tray set up.......This would
> minimize your chemicals and you could just tape of the back using visquine
> or cut a piece of plastic plexi and tape that in place......
> You may also want to look into Sandy King' s method of coating paper for
> Carbon Printing .
> John Cremati
>
>