Drop down spray booth w/ exhaust fan for woodshop

jack1 · Oct 25, 2014

Looks a lot like the old auto spray booths I remembe in body shops. Nice work Jerry.

a1Jim · Oct 25, 2014

Seems like it might work out .I can't help but wonder if it gets's all dusty when storied away? I'm also trying to figure out where you exhaust fan vents to ?

jofm3 · Oct 25, 2014

It pulls harder than I expected. Not only keeps the over spray in check, but works well enough to exhaust the fumes/smell also.
It exhausts outside under the garage door. This was the third design of the box & filters. I've coated the filters with blue spray paint while a friend stood outside with printer paper in front of the exhaust port and no blue on the paper. The filters did a good job on that test, but during normal use the clear or paint will be dry by the time it hits the filters.
I also open a window in the shop to allow fresh air to aid in venting and circulation.

a1Jim · Oct 25, 2014

Thanks for the info ,I didn't notice that you booth was up next to you garage door. Do you have to wipe the fabric down to get rid of any dust that accumulates when not in use before you spray ?

Missouriwalnut · Oct 25, 2014

I love the fan unit. I'm going to do that. I usually hang up a tarp from a cable making it more like a curtain and separate my workshop in half then place a fan in the window, but I like your fan idea better.

LesB · Oct 25, 2014

Looks like a great idea. I have one concern your filters takes care of the chance of small particles combusting but when spraying with solvent or hydrocarbon based products there is a chance of them igniting from a spark. How spark proof is the blower motor. I built a small portable spray booth years ago for someone and had to find a spark proof motor for the exhaust fan to make sure there was no fire or explosion hazard.
Also your filtered blower can also serve as a air cleaner for the shop.

luv2learn · Oct 25, 2014

Great setup Jerry. I especially like how you hung the fabric curtains.

timbertailor · Oct 25, 2014

.............................. I have one concern your filters takes care of the chance of small particles combusting but when spraying with solvent or hydrocarbon based products there is a chance of them igniting from a spark. How spark proof is the blower motor? I built a small portable spray booth years ago for someone and had to find a spark proof motor for the exhaust fan to make sure there was no fire or explosion hazard.
Also your filtered blower can also serve as a air cleaner for the shop.

- LesB

You make a very good safety point(s) that many fail to consider.

And it is not just the motor, but the fan blade, cage, and all associated hardware used to keep the blade and guard in place.

Flow must also be considered and filters sized accordingly. Few filters can handle the flow and\or provide adequate filtration.

DocSavage45 · Oct 25, 2014

Great Blog!

Learning and planning. LOL!

Nice shop!

jofm3 · Oct 25, 2014

Les & TimberTailor: I have a good friend in the autobody business and when I spray paints, they are waterborn not solvent based. I have had great luck with the Minwax Polycrylic and a waterborn clear from Varethane. No worries on combustion in my booth with the products I use.

Jim: I have a shop vac mounted on the wall to clean any dust from the pleats before spraying.

OSU55 · Oct 25, 2014

Did the same thing several years ago, works great! The explosion possibilities are why I moved to waterborne finishes several years ago.

489tad · Oct 26, 2014

thank you for posting. It has provided a lot of good information. Well done.

whitebeast88 · Oct 27, 2014

great idea,very handy to be able to store it at the ceiling when not in use.thanks for sharing.

Drop down spray booth w/ exhaust fan for woodshop

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jack1

a1Jim

jofm3

a1Jim

Missouriwalnut

LesB

luv2learn

timbertailor

DocSavage45

jofm3

OSU55

489tad

whitebeast88

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