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Date: | Wed, 3 Sep 2003 14:19:58 EDT |
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Shelly,
You are not killing a dead horse!
The fact that the posters are framed and behind plexiglas just makes the
effect of volatile organic acids even more serious if they migrate in the air
exchange inside the framing - unless the framing is specially designed and
gasketted there will certainly be air exchange occuring.
Why not eliminate plywood, at least along the non-load bearing sides and use
Coroplast instead?
Give up on "coating" the plywood. The problem there is that of micorscopic
pinholes - they serve to focus even greater concentrations of organic acids in
outgassing. Marvelseal is the way to go.
You could also use coroplast on top of the plywood/marvelseal sandwich as it
will give you a very smooth and archival material to place the framed prints
on.
It would be even better if you gave up on plywood entirely and went with the
adaptive reuse of steel shelving units using coroplast dividers.
Anyway, I'm in town, so feel free to contact me if you want to play with some
ideas.
Cheers!
Dave
David Harvey
Artifacts
2930 South Birch Street
Denver, CO 80222
303-300-5257
[log in to unmask]
I would avoid "coating" and just go to the Marvelseal idea.
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