One thing you might try is wheat paste glue—I believe it is commonly used and is archival. Wheat glue in powdered form also used in chine cole printing as mentioned by Jack Fulton in a recent post—the dry powder can be sprinkled onto the dampened papers before running through the press.
On May 11, 2008, at 5:46:32 PM, "graeme.lyall" <graeme.lyall@virgin.net> wrote:
I would also be interested in any ideas on this. Would PVA be safe? It has
good archival properties and there is a reversible form which delaminates in
water if the need should arise. I don't know about any effects it may have
on the image, though.
----- Original Message -----
From: "Gregg Kemp" <gregg@roanokesound.com>
To: <alt-photo-process-l@usask.ca>
Sent: Sunday, May 11, 2008 11:25 PM
Subject: archival adhesive for cyanotype?
> Does anyone know of an adhesive that is safe to use (archival) with
> cyanotype on any specific paper combination? The adhesive would be
> applied to the back of the print, in just a small area near the center of
> the paper, to "float" it off the surface of a matte.
>
> In other words, is there a combination of paper and adhesive that is not
> likely to damage the cyanotype? Or perhaps a paper of a very heavy
> weight? Or a way to treat the back of a paper before applying an
> adhesive? Would an acrylic medium be safe, if it worked?
>
> Gregg
>
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