Has anyone built a spraybooth?

[bigmikevee]

Hello all,

Thinking about trying to make homemade spraybooth, anyone have any tips or ideas to share? Think it should be easy, confident about lighting, power, and enclosure,but want to make sure the fan is safe, don't want to lose my eyebrows...or worse!! Know there a fan that is sealed against the fumes, but do not know what it is called.

Appreciate everyone's help in advance!

Thanks. Mike

[LOBBS]

Dayton squirrel cage blower also known as a shaded-pole or PSC blower. I've ordered a couple through Grainger now, one for the old booth that I'm now selling and a bigger one last week for my new booth. I've got some information with the specs for figuring out which blower is right that was put together by Klaus Raddatz. Klaus is a guru when it comes to homemade booths just shoot me a line and I'll get it to you.

[Guest Gramps-xrds]

I can't understand what the concern about electric motors is. The only way a motor could cause fumes to ignite is if it has brushes or over heats. Finding a motor that uses brushes now days is like finding hens teeth. Everything I've seen for yrs is induction type. They produce no sparks, they use magnetic fields to move the armature. As far as overheating, I haven't seen any in the last 15 yrs that doesn't have a thermal protector that shuts it off of it gets to hot. I've been using an old bathroom exhaust fan for the last 20 to 30 yrs. On rare occasions I have to take it apart and clean the over spray out because it'll start slowing down.

I read the post about the guy blowing up a spray booth and I'd say if it's true, it was something other than the motor or he shorted something out or wired it wrong.

[crazyjim]

I made mine from plywood, a 24" tube light, bathroom exhaust fan ducted outside, 12" x 24" furnace filter. I used Pace drawings as a guide. It's sits on a mobile cart and I wired it so there's seperate switches for the fan, light, compressor, and a spare.

I imagine if you do a search on the forum that you'd be able to get all kinds of tips and pics.

[my80malibu]

Here is a link to the one I built. http://public.fotki.com/Gabriel12/paintbooth/ it appears to work fine, I know others might disagree, There was a story circulating about a Homemade style booth that caused some injuries.

[envious8420]

I made mine out of (believe it or not) cardboard.

I do 1:1 body work as well, I got a hood box (4ftx4ft. 2 sides but it folds around the hood like a book.) stretched it out flat, made some measurements, scored through 1 layer of paper(fold relief). then I built a 2x4 base and wrapped the base with the cardboard and screwed slats around the perimeter on 3 sides. Then i cut the doors so they overlap a few inches. On the top I used a stove hood. the base is the same size. I bought a squirrel cage setup and vented it through a basement window using a dryer vent and duct.

I have a furnace filter in the base to filter air into the booth and a furnace filter up top to filter the paint out of the vents. this also helps in keeping the fan clean. In the top i mounted a 24in fluro and on the sides halfway up I mounted 4 cfl bulbs(2 per side). I use a childproof slide lock the secure the doors from my 3yr old son.

[High octane]

Mike,

Check out www.fishcarver.com for some really good info on building a spray booth.

[Yekoms]

I asked for spray booth info a little while ago. Do an advanced search on my posts and you'll find it. I tried to drop it on this post and screwed it up...

Smokey

[bigmikevee]

Hey all,

Thanks for the replys, I had heard most of the newer fans were pretty safe, been spraying into cardboard in the garage, but want to get out of the humidity and dust. Like CrazyJim's reply, putting on a cart sounds like a good way to go, garage when right weather, in the house when it is needed. Will check out the links you sent, thanks to all, will let you know how it turns out, maybe post a picture ot two later.

Mike

[bigmikevee]

Hey all,

Also curious about filtration, know lots of you use furnace filters, can anyone provide me more info. about the carbon filtration? Use carbon on my aquariums to remove medications, toxins, etc., but not sure how to use in-line on the vent, want to be as kind to environment as I can,

Mike

[LOBBS]

Hey all,

Also curious about filtration, know lots of you use furnace filters, can anyone provide me more info. about the carbon filtration? Use carbon on my aquariums to remove medications, toxins, etc., but not sure how to use in-line on the vent, want to be as kind to environment as I can,

Mike

You can order carbon filters online. There are several places that offer a pleated furnace type filter with an applied carbon coating. You need to piggyback them with a standard furnace filter. The standard furnace filter catches the bulk of the overspray, the carbon filter is behind that to soak up the fumes.

[crazyjim]

Photobucket is back and here's pics of my spraybooth.

The cart came from Harbor Freight or Northern Tool (don't remember which), compressor, light fixture, exhaust fan from Lowe's. I wired so there's an extension cord to plug in and that provides power to the 4 switched receptacles (light, fan, compressor, spare). It's modeled after the large, expensive Pace unit but not as expensive. I cut a hole in the shop wall and mounted a dryer vent and attached the 4" hose. On the booth side I used a PVC fitting to attache the hose to and notched the PVC to latch onto bolts on the fan housing.

[cruz]

I went to Home Depot and bought an 8 inch diameter inductor fan for about $30.00, these are used to push heat to the furthest rooms away from the main heat source in big houses.

Hosted on Fotki

I made a 3ft by 2ft box with some wood panels I had laying around, opened a hole on the top and installed the flexible ducts to the outside of the house. It has been working for me for the last 5 years without any kind of issues.

Hosted on Fotki

Hosted on Fotki

Hosted on Fotki

Hosted on Fotki

[AzTom]

Money spent on a fan that has the motor out of the exhaust is well worth it. Any electrical device has a chance of failure and you do not want that to happen while paint fumes are passing by. This includes light bulbs. A hot incandescent bulb can explode if paint spray comes in contact with it.

I have replaced many bath and kitchen fans that have burnt from normal use. Read this and think about paint/thinner passing over the motor.

http://www.electrical-forensics.com/Motors/BathroomFans/BathroomFans.html

From reading these forums I know several people have used unsafe fans for years but the question you want to ask is, How lucky are you!

AzTom

[bigmikevee]

Thanks foe the replies everyone, am really enjoying my return to the hobby and being able to tap into such kind, informed and clever people. You guys ( and gals ) are awesome!!

Crazy, the mobile cart is really neat...have model will travel!

Mike

[crazyjim]

Thanks Mike. The only problem with the cart is that the drawers are too shallow to stand 2 ox bottles of HOK paint in so I had to build a seperate sheving unit to hold them. Still works for me though.

[KENNEDYJR]

My question is to those that run the ducting outside the house. Is there any issue of over spray on the window casing or siding? I was planning on using an enclosed charcoal trap on mine because of this. Am I wrong in this thinking?

[crazyjim]

Mine is vented through the wall of my shop - a steel building. I run a 6' piece of 4" flexible ducting from the fan to the wall. There has been no overspray, drips, dust, whatever on the siding. I do have one of those flapper things to keep birds and such outside the shop.

[KENNEDYJR]

Mine is vented through the wall of my shop - a steel building. I run a 6' piece of 4" flexible ducting from the fan to the wall. There has been no over spray, drips, dust, whatever on the siding. I do have one of those flapper things to keep birds and such outside the shop.

Thanks. I hadn't through of one of those flapper doors on the outside.

[Steve Keck]

My question is to those that run the ducting outside the house. Is there any issue of over spray on the window casing or siding? I was planning on using an enclosed charcoal trap on mine because of this. Am I wrong in this thinking?

Rory,

My setup has about four feet of ducting between the booth and where it exits through through the window about three inches above the sill. There has been no build up over three years that an old paint brush won't brush away.

Steve

[Aaronw]

I built my own last year, the fan is a 485 cfm shaded pole blower from Grainger and cost about $150, my total for the booth was just over $200.

Yes, lots of people use cheap bathroom or stove top fans successfully, under the right conditions you can also safely throw matches in a pan of gasoline.

All of the commercial booths I have seen use a squirrel cage blower, there is probably a reason for that. Admittedly it isn't a huge risk and many will never have a problem using one of these cheap fans, but I wasn't willing to take the risk just to save $50-100.

My question is to those that run the ducting outside the house. Is there any issue of over spray on the window casing or siding? I was planning on using an enclosed charcoal trap on mine because of this. Am I wrong in this thinking?

Most use a furnace filter which should catch any over spray, so only fumes should be exiting the ducting.

[mind-9]

Hi guys and girls'

i use an old small air heat oven as my spray boot because i can heat it up just like a real spray boot

[crazyjim]

Aaron,

Can 4" duct work be attached easily to that motor? Don't you need to vent outdoors?

[van]

Would a exaused fan off a hot water heater work? I did a spraybooth the fan is last to do i will use the hot water fan if it will work.

[Blake Rogers]

great ideas just wondering about using sheet metal?