Powdercoating Booth Plans

[Joe]

See how much I appreciated all of your help on my chrome rim question? I'm back for some more good advice.

I'd like to put together a powdercoating booth. My main concern is not so much the booth itself, but the ventilation. I read somewhere that you have to watch what you put in the booth as the spark from the connectors in the fan itself can ignite the powdercoat. And I'm not interested in blowing up my garage this week :D

Does anyone have any suggestions on building this and then venting it?

Thanks again!

[SCOOTTER]

I think that there is a certain type of fan you can use that the fan itself is sealed so that the dust does not get in the actual motor, I forget what they are called at the moment though. Hopefully someone else can be of better assistance. lol :D

[2003z]

i just have an area of my garage that is 8' x 8' that is sealed off with shower curtains and I keep a sheet on the ground/ when it fills up with a bit of dust, I shake it off outside, and its fairly effective.

[Ultra Al]

To answer your question about the fire proof fans. Copus manufactures a pneumatic fan for industrial painting. We use them on my jobs which require painting in containment with negative air (dams, bridges etc:). They would be cost prohibitive for hobby use unless you can find a used one some where, unlikely, or possibly an electrical fan could be converted to pnuematic, now theres a challange for all you creative craftsman out there, how would you do it? Food for thouhgt... Al

[Capepowder]

Hey Joe:
You could use a shop vac for a vent system, you could install a paper filter element from a hot air heating system before the vac inlet. This would trap the powder from going into the vac & causing a flash.
Good Luck
Bob
www.capecodpowdercoating.com

[comet1050]

Joe
I think you are looking for a motor that is tfc totaly inclosed fan cooled not a brush type motor the address I put in under ovens showes how to build a both ,they isolated the blower outside of the both area

[Joe]

Thank you all for your great ideas, I really appreciate it. Now I have some sort of direction to move in, instead of aimlessly slapping something together and hoping it works :D

[Dr. jinG]

Sorry, just saw this thread.

If you make the area enclosed, and have a fairly small exhaust outlet, you could pressurize the area to push dust-free air in, and push the powder out. This would put your motor up-stream of the dust, and eliminate flash-fire concerns.

[malehon]

For a power coating booth use a non sparking fan. Best deal is a dust collector blower. They handle lots of air and many have aluminum (non-sparking) impellers.

[SCOOTTER]

I believe that they are called explosion proof fans for this type of aplication.

[OscarTG]

Yes there are, attic whole-house fans almost always use explosion proof motors and are about the lowest cost that I've found.
Dayton makes a bunch of explosion proof motors and they can be found along with a wide selection of fan blades through Grainger.com.

[gudgean]

i built my oven and vent system with 85%recycled materials
http://photobucket.com/albums/y6/gudgean/KRAZY%20KARLS%20KOATING%20AND%20KUSTOMIZING/

[Aeroman]

And the paints I use are much more flammable than the powder we use:












I used a kitchen fume hood with the centrifugal fan...

[Dr. jinG]

Nice work! I haven't built it yet, but my plan is cheaper: Two bathroom exhaust fans, HVAC intake filter, and a lot of thin plywood. :D

[OscarTG]

I used to use 24" box fans with HEPA style furnace filters taped on, worked pretty good.

[Aeroman]

I used to use 24" box fans with HEPA style furnace filters taped on, worked pretty good.


Do you have any images of yoru booth?

[SCOOTTER]

Yes, anyone that can take pictures of there booths and display them on here would be greatly appreciated!!

[OscarTG]

Hmm, I'll have to see if the box fan is still around, but here are some pictures of a Camero subframe I did recently, which shows the oven and rack I made.

[KevinC]

Okay, so I started my booth today. I've gotten it about 50% complete. Still have to add the back wall, the exhaust hood, and then paint it. Here are a couple of pics.
FRAME:

INNER WALLS INSTALLED:

ALUMINUM RAILS TO SIT RACK ON:


And if you are wondering about the markings on the plywood....that was last year's Hurricane plywood for the windows.... :D

Kevin