From: Christina Z. Anderson (zphoto@montana.net)
Date: 07/14/03-07:44:24 AM Z
Hi Bob,
Can't believe no one has answered this yet, so I'll make a comment, but
not an answer exactly. I have found that (the following is sooo
scientific--the "smell" test) the Golden UV varnish smells like the same
type product as Future--it is an acrylic polymer blah blah (jar is packed,
can you tell?), just less watered down. It does the same effect of turning
the image immediately lavender when painting it on the cyano, but does
revert to the more normal blue after a while. Because it is an art type
product, they may have addressed the archival issue (you know what they say
about "assume"). I figure the company that makes Future doesn't care
whether your linoleum remains archival. The Golden also has a nice gloss to
it, but it doesn't smell quite as nice as springtime-fresh Future.
Chris
----- Original Message -----
From: "Bob Kiss" <bobkiss@caribsurf.com>
To: "ALT PHO PROC." <alt-photo-process-l@usask.ca>
Sent: Saturday, July 12, 2003 5:55 AM
Subject: pH and FUTURE
> DEAR LIST,
> I recently received my pH pens from Light Impressions and went a
little
> wild putting little lines on samples of papers, test strips, finished
> prints, and mounting materials.
> I made a curious discovery. When the list was talking about acrylics
> and sprays to put on Cyanos and Pt/Pd prints to yield an apparent increase
> in Dmax, I tested this idea by painting FUTURE length ways on some sensi
> strips of Pt/Pd coated on Cranes Platinotype and Lenox. By doing it
length
> ways, half of each step was unpainted and half painted with the FUTURE.
> TWO OBSERVATIONS:
> 1) There was an "apparent" increase in density in the shadows but not very
> discernable with a reflection densitometer. There was also a noticeable
> increase in density in the highlights which may not be so desirable.
> 2) My pH pen indicated that the side unpainted with FUTURE was quite
> neutral (it remained a lovely blue color) but the side painted with FUTURE
> started blue and quickly changed into a yellow/orange color indicating a
> definite acidity.
> I only mention this for those who are concerned about the acidity of
> their finished prints and the effect it may have on longevity. It might
> actually help Cyanos which will fade in a buffered environment but I am
not
> sure how good this is for other prints and papers which may be adversely
> affected over time by acidity. I now turn this over to those on this
list
> more versed in these matters. Waddaya tink?
> CHEERS!
> BOB
>
> Please check out my website:
> www.bobkiss.com
>
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