From: garimo (email@example.com)
Date: 12/24/00-12:50:21 PM Z
I don't know if this method will fit your needs, but I too created a
hydration chamber for chrysotypes, but wanted something much larger
than a plastic tray... I had a unused insulated refrigerator display
case sitting around. It has two sliding doors and stainless steel
shelves for several layers of paper if needed. In the bottom. I put a
tub of water that sits on top of a heating pad and I keep the water
about 80 degrees. I really don't know what the humidity level in the
box is 'cuz I don't have a meter. I know it is consistent so I just
time how long the paper has been in the box for pre-exposure and/or
post-exposure hydration and look for the results.
>The simplest way is to buy a opaque tray (photo or even kitty litter)
>and put some weather-stripping along the top edge. Then use a 1/4"
>thick glass for the cover. You can paint it black if you're humidifying
>coated paper. I use stick on magnetic strips attached to the underside
>of the glass to hold the paper above the water or salt solution. You
>could also put a mesh screen above your water solution, to keep the
>paper above it.
>Use an inch or so of water- put the paper in the box for 20 minutes or
>so before coating. Or, you could use sodium chloride and water
>(saturated solution) for about 80% relative humidity. The advantage to
>using salt is that the paper doesn't become too wet, and can be stored
>indefinitely in the hydration chamber.
>Check out Mike Ware's website for further info.
>Good luck and Happy Holidays!
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