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Post by topside on Jan 4, 2022 13:09:06 GMT -5
Finally bought one of those little spray booths for painting models - about 16 x 13 inside, + the fan enclosure & vent hose. My deal is using it in the shop where I don't want any overspray getting on things; can't really vent it to the outdoors for a couple reasons. So, I'm thinking about running the exhaust duct from the fan enclosure to something like a big cardboard box, with another filter (replaceable furnace filter) to trap whatever particles are left (primarily enamel & catalyzed urethane clearcoat). So, air pressure would escape but not overspray.
Haven't figured out its location in the shop yet, so I'll experiment with that. (Heated/insulated 30x40 with 4 cars & my car trailer in it, plus benches, shelves, equipment, TV, stereo).
Suggestions/ideas/commentary welcome.
Next thing is a heated dryer of some sort...
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Post by Jcon on Jan 4, 2022 13:40:04 GMT -5
Interesting...
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Post by topside on Jan 5, 2022 22:41:39 GMT -5
Well, I'm gonna go ahead with it, and make it mobile until I decide on where it'll live.
Or maybe just put everything - including air pump - on a small tool cart.
Net thing to figure out is a baking oven of some sort; nothing too hot, and big enough for a car & parts.
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Post by topside on Jan 6, 2022 22:58:58 GMT -5
Well, got that done too.
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Post by tubbs on Jan 7, 2022 7:55:32 GMT -5
watch how much back pressure you put on that fan. the more things you make it push thru or a long run of vent hose will effect that fan. it seems you are more concerned about overspray than fumes. maybe if you run it into a second stage (box with another filter), you should be OK, make that filter fairly thin so air can escape freely. you may want to rig some sort of shower curtain up where you spray too. i notices in my room paint dust on shelving and things that are 10+ feet away and behind my booth, but i have no fan so particles go everywhere.
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Post by topside on Jan 7, 2022 11:03:09 GMT -5
Yup, the 2nd filter is only for trapping enamel & urethane particles. Definitely want the booth to pull air and not dead-head. The "trap" box is double the booth size, too.
I've never noticed much in the way of fumes, but I have noticed overspray dust when painting real car parts in the shop, even with curtains - didn't have enough airflow out of the shop.
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Post by mopar on Jan 7, 2022 12:41:36 GMT -5
My spray booth uses a 12” x 24” furnace filter and I find that the cheaper filters work better allowing more air flow and collects more of the over spray. I have not noticed or had any problems with paint coming out my vent dryer pipe. I’m spraying with my air brush and spray cans.
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Post by tubbs on Jan 7, 2022 13:05:59 GMT -5
someone on facebook has your same problem. here is his solution... pictures to come.
I have a tip for people using some type of paint booth. I was shooting lacquer last night and my wife started to complain about the smell. My paint booth runs out a dryer hose into a lint trap with a little charcoal and rags stuffed in it. This isn’t cutting it. I am in the basement with no way to vent it out. I don’t want to use the dryer vent because it is gas and any fumes could ignite or explode. So this is the solution I came up with for $20 at Lowe’s. May be more but I had some items at home. I bought a 5 gallon bucket with lid and a dryer vent end and clamp. Also a bag of charcoal any type that doesn’t contain any coating for easy lighting. Cut a hole in the lid the size of the dryer vent end that your hose will fit on. Tighter the better. I used silicone around the other end, push tight, then I used duct tape to seal the inside of the vent to the lid. Then attach your dryer hose from your paint booth. Now the bucket itself. Drill some small holes toward the bottom on the side. I used 1/4 inch bit and made about a dozen holes. I filled the bucket with charcoal and put a rag over the holes. Hammer the lid tight. Check for leaks. Also make sure that air is coming out the small holes you drilled. I ran a test with the same paint. I had my wife check and she could not smell anything right up to the paint booth. I could smell it at the paint booth for about 30 seconds to a minute. After it gassed out that smell was gone too. Now I can continue painting in the basement through the winter.
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Post by tubbs on Jan 7, 2022 13:07:35 GMT -5
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Post by tubbs on Jan 7, 2022 13:07:59 GMT -5
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Post by tubbs on Jan 7, 2022 13:08:22 GMT -5
hope this helps. i may do this, if i ever get a fan.
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Post by topside on Jan 7, 2022 15:11:52 GMT -5
Hey, thanks! A bucket was my 1st thought but I was concerned with airflow backing up. Looks like it's no big deal, though. The charcoal is clever.
I'm thinking about where I locate my filter height-wise on 1 side of the box; will likely start in the middle.
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Post by crizila on Feb 4, 2022 9:42:16 GMT -5
<button disabled="" class="c-attachment-insert--linked o-btn--sm">Attachment Deleted</button> <button disabled="" class="c-attachment-insert--linked o-btn--sm">Attachment Deleted</button> Great ideas which I am going to copy for mine. My booth as a down draft and it has 3 layers of filters, for which one is charcoal. I have been venting just into my work room for now and the 3 layers of filtration pretty much removes about 75% of the smell and all of the particulate. Attachments:
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Post by tubbs on Feb 7, 2022 10:02:39 GMT -5
i have to do something about mine. i really need a fan. is there a preferred exit for the fumes? i have seen back exit and bottom exit. obviously more back. for me the best would be the side. maybe i will do what i posted from facebook in an earlier post. probably work the best for me.
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Post by crizila on Feb 25, 2022 10:03:04 GMT -5
Mine is a side exit.
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