Reply by SST

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Posted on Spray Booth

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790 posts in 4217 days

#1 posted 05-17-2007 12:20 AM

It seems that if you use non rigid walls you will not be able to have much air movement because of a “balloon effect”. It also occurred to me as I’m remembering the auto spray booths we had, in addition to the vent van removing air, we had an intake fan to balance the air flow. On a small scale, you might not need both, but if you only used one fan setup and it was to push in the air, you could mount it just outside the booth, and since the air flow was away from the fan, you might not have to shield the motor. (unless, of course, you shut it off and then restart it while the booth is full of fumes/vapors/exploding stuff, some drifts back, and then you blow yourself into the next county.
But, if you leave it run until all the fumes are pushed out, it’s probably ok. A couple of other things to think about, as if there aren’t enough, already: You need to filter the air that comes in, and (this should be a given if you are only pushing air in, and not also sucking it out with another fan) the booth should carry a slight positive pressure. That way, you’re not sucking dust, etc into it through cracks & holes, or when you enter or leave through a door to refill your sprayer.
Wow, once I get to rambling on, there’s no stopping me. To bad I don’t think of things in the right order, it would save writing space. -SST

-- Accuracy is not in your power tool, it's in you

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