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When I first started i built a rack that would stack 5 screens flat spaced about a couple inches apart No Matter how many i had coated 1 or 5 they dried in about 2 hours with a cheap box fan set on low blowing air over them..
except in the winter when it got cold in back..... I now have a forced air heated drying cabnet but still use the simple wood rack when im only coating one or two screens...because its cheaper on the light bill then the heated box... Total investment ...half a sheet of plywood and a couple 2 by 2's...
 

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Dehumidifier. 10 minutes or less in a drying cabinet depending on how many screens.. Search for the post here. Someone else has done it and put up plans. I'm building mine tonight.
We just finished building our drying rack (5' tall, 40pt dehumidifier sitting at the bottom, 9 racks above) this week, and just so you guys know, it's not a plug and play thing. A lot of the pros on here are really helpful in explaining some of the over-sites some of us forget. Building the drying rack is a great idea for some people, but it needs to be vented. Also, the QTY of wet screens and the thickness of the coating will play a HUGE part in this.

I think if you're looking for specific answers, the best we can tell you is that when people say they get 5-10 mins on the low end and 2 hours on the high end in a drying rack, it's all relevant to these other factors. We thought we'd be done in 30-60 minutes, but found that with 3-4 coated screens, we're waiting appx 2 hours. That's w/ the dehumidifier running and the door left open in light-safe.

And... we're still coating too thick, even with a nice scoop coater on an upward angle, it just takes a few times to get it down it seems.
 

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I made a drying rack out of the crate my screen printer came in. The top has hinges and turned into a door. I used pvc pipe for my frame "runners" and put one of those electric oil heaters in the base. It's got a fart fan (bathroom fan) installed in the top that I just flip on. Takes about 15min. to dry a screen.
 
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