Thanks, Ken.

A couple of years ago I did a 55 image show of snow
crystals - all images 12 x 12 in 18x20 frames. I had
everything printed a month in advance, and laid the
prints (premium semigloss paper) on sheets of brown
frame backing paper, figuring it would work well to
soak up the extra solvents etc. I left them pressed
against the paper for a week or so, and then let them
air dry for a few weeks.

After framing everything behind glass, the show was up
for about 4 months. I took it down, put it in storage.
Six months later I pulled it out to display in a new
venue. I pulled the prints from the frames and
re-cleaned the glass. 

Almost every print had out gassing residue on the
inside of the glass. I was surprised because they had
certainly 'cured' for a long time. I washed up the
glass and re-exhibited them. They have flipped from
one venue to another for over a year since - in a
couple of weeks I'm taking them down from the medical
center where they have hung for the last 9 months (it
started as a 3 month commitment, but kept getting
extended.) I'll be interested to see how much gas
residue (if any) is on them.

My own experience is that a lot of it depends on the
cleaner used. I did up a batch of framed prints for
another show  using Windex no drip formula, and it
displayed terrible out gassing - I assume that the
thick no-drip formula leaves a residue that interacts
with the print solvents. Other cleaners have worked
better.

To top it off I have some older prints that were
framed in a frame shop, using tempered glass. I broke
the glass on one hanging them to decorate a local
Chamber of Commerce event. The funny thing is that I
hadn't even heard of the out gassing problem at when
that print was framed, and took no effort to cure it.
That glass had no out gas residue on it at all - maybe
it was super cleaned.

My own take, from working with a lot of framed prints
and recycling frames and re-framing, is that the
plastic papers - semigloss and pearl - will out gass
for a few years no matter what you do.  I think that
how the glass is cleaned is the most important part of
the process. Pressing paper against the print or
extended air drying may minimized the problem, but
they will actively out gas for years. 

Just my personal experience - but I have framed and
re-framed a fair number of prints. Prints in direct
sunlight or high humidity are particularly prone to
the problem.

OTOH - matte finish papers seem to exhibit virtually
no problem with this, provided they are given a little
time to dry.

- MCC

--- Kenneth Waller <[EMAIL PROTECTED]> wrote:

> Epson link on Framing tips - addresses out-gassing.
> 
>
http://www.epson.com/cmc_upload/0/000/020/443/Gas%20Ghost%20P3.15692.pdf
> 
> Kenneth Waller
> http://tinyurl.com/272u2f
> 
> 
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--------------------------
Mark Cassino Photography
Kalamamazoo, MI
www.markcassino.com

Photo Books:
www.lulu.com/cassino
--------------------------


      
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