[Alt-photo] masking edges

Webmaster clay at clayharmon.com
Tue Jun 13 16:36:29 UTC 2017

Best tape I have found that is still available is the 3M post-it tape:

https://www.amazon.com/Post-Labeling-695-Inches-Yards/dp/B000SPHL0O/ref=sr_1_2?ie=UTF8&qid=1497371691&sr=8-2&keywords=3M+post+it+tape <https://www.amazon.com/Post-Labeling-695-Inches-Yards/dp/B000SPHL0O/ref=sr_1_2?ie=UTF8&qid=1497371691&sr=8-2&keywords=3M+post+it+tape>

Seals the edge but removes without tearing the paper, which is a problem I have with the blue painter’s tape.

> On Jun 13, 2017, at 12:25 PM, Bob Cornelis via Alt-photo-process-list <alt-photo-process-list at lists.altphotolist.org> wrote:
> I'm interested in recommendations for the best way to mask edges to get a
> clean, straight line. I'm mainly doing pt/pd and cyanotype.
> I'd prefer to not just extend the edge of the neg with black as sometimes
> it's hard to get perfect clearing, especially with cyanotype. I know that
> various tapes have come and gone over time so wondered if anyone has a good
> source for a tape that doesn't mar papers (Platine and HPR) and doesn't
> "leak" under the edge.
> Haven't tried rubylith but it seems expensive, sort of a pain to use and
> not sure if it would have the same problem with clearing highlights.
> Thanks!
> Bob
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