[Alt-photo] paper for cyanotype (again)

Clay Harmon clay at clayharmon.com
Wed Dec 13 21:47:42 UTC 2017

I found you needed to acidify it to get a rich print. One issue I had was that it was a pretty thirsty paper and can be difficult to clear. I had to use a weak phosphoric acid bath for the first clearing step to get complete clearing. The texture is a little rougher than some of the papers like Platine or HPR. However, if you have access to an etching press and some spare time, you can take the damp paper about midway in the drying step after acidification and run it through the press between two sheets of lexan. That will calendar the paper and smooth it out considerably.

> On Dec 13, 2017, at 4:29 PM, Don Bryant via Alt-photo-process-list <alt-photo-process-list at lists.altphotolist.org> wrote:
> Chris,
> I purchased about 20 11x14-ish TR deckle edge sheets quite a few years ago
> for palladium prints. Clay Harmon recommended acitification ala oxalic acid
> and my results were very good. I had such a small sample of the paper that
> I took Clay's advice and I had no idea if the paper was buffered or not. So
> based on my results from days of yore I would guess the paper did not have
> an acidic pH. Others may disagree.
> Don
> On Dec 13, 2017 3:47 PM, "Christina Z. Anderson via Alt-photo-process-list"
> <alt-photo-process-list at lists.altphotolist.org> wrote:
>> Dear All,
>> I talked with Twinrocker’s owner today about their papers, and he told me
>> that none of them have added buffers. They use hard water to make the
>> papers but they don’t add calcium carbonate or anything otherwise.
>> I ordered a paper sampler so we’ll see….
>> Anyone have experience with these papers? I only have a couple sheets here
>> that are quite thick and bumpy and small.
>> Chris
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