In my spray booth, mine is larger than the one we are talking about here, I originally had the filter and fan assembly on the side, but it caused problems. I had the filter and fan assembly on the right side of the booth, when I sprayed on the left side powder would escape out. I think the fan, or at least, the filter area should be at the back of the booth, so all the extra powder would be pulled into the booth, not across it. Maybe I am wrong on this kinda thing, but check this out first. Go to a Lowes or Home depot and check out and attic exhaust fan, they are cheap and I know they are not intrisically safe, but they will work for what you need. I now run a 14" squirrel cage with a 3/4hp motor, pulling it through 8 20"x25" filters, no powder comes out and it does not affect the powder adhering to the part. Like I said before, buy a fan larger than what you think and just slow it down with a dimmer switch. Don't go so large that the fan will have to turn REAL slow, fan blades are designed to operate at a certain speed.
|