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  #1 (permalink)  
Old 01-22-2018, 11:09 AM
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My new home spray booth design - 17 photos

The workshop stall that I use for both body work and paint is 14ft wide by 24ft long with a 10ft ceiling. It has a 9ft wide by 8ft high garage door at one end and a 3ft wide by 6ft high window on the opposite end.

So, my plan was to put two totally enclosed motor 24" drum fans in the window that blow outwards and an intake filter wall on the garage door end using spray booth filters.

These are the fans I bought:
https://www.jdmfg.com/industrial/rec...drive-drum-fan

Bought them here with free shipping:
https://www.equipsupply.com/heating-...pivot-drum-fan

Total flow is 14,400 (7,200 X 2) cfm if the specs they publish are accurate.

I made a frame out of 3/4" plywood to mount the fans to and painted it with gloss oil based paint. I mounted the fans using J bolts and the hook part goes in the lip on the outside of the fan drum.



I cut the excess length off the J bolts and mouned the frame to the window frame on the outside of the workshop:



Inside:


On the inside you can see that there's no interference with the operation of the double hung windows. I can use them to hold the heat in at night, open the window and use one fan or for spraying, remove both windows.

These double hung windows are super easy to remove as long as you know the correct procedure:


Now on to the filter wall build.
I built an intake filter wall out of 1X4 and 1X8 lumber. It's got eight 2ft X 4ft openings for attaching the PAINT BOOTH INTAKE FILTERS I bought.


Attached the wall to the garage door trim with one deck screw on each side and went around the perimeter with duct tape for a seal. I attached the filters to the wood wall using an electric staple gun with 3/8" staples. Worked perfectly.




Garage door still operates while filter wall is in place. When I spray the paint, I will cover the top of the open door with plastic sheet so overspray won't settle on to the outside of the door.


Car painted with SPI single-stage white. Closed door up and put the windows back in for the night:



The fans and filters worked super well. Clears the overspray fog really fast. I've never had so little dust during painting a car. I'm not sure if I have any dust at this point. Won't know for sure until after cut and buff.

Next day: Removed filter wall and moved off to the side in order to move the car into my other workshop stall. Now on to painting the hood, fenders, nose and tailgate.



Here's a photo of the overspray on the fans. I sprayed USC Magic Mask liquid masking onto the fans before spraying the paint on the car. I hope that will allow me to gently brush the fans with soap and water to get the overspray off. We shall see how well that works.


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Last edited by roger1; 01-22-2018 at 11:15 AM.
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Old 01-22-2018, 11:40 AM
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Holy crap, that's pretty impressive!

Brian
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Old 01-22-2018, 04:23 PM
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Holy crap, that's pretty impressive!
Brian
Thanks Brian!

I gave this a lot of thought before doing it. With my last couple of projects, I had a lot of issues with dust. It kind of bums you out. The specs are either dark on a light color paint or light on a dark color and they stand out. Worse with clear if the spec of dust gets there in early coats because you can't sand them out.
Even though I wanted to do ss on this car because it was white, I wont be afraid to do bc/cc again using this system.
For the functionality I got with this, I think the total cost for the fans, filters and parts was well worth it. Also I think it's safe even though the fans don't have any certifications for this kind of thing.

Last edited by roger1; 01-22-2018 at 04:35 PM.
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Old 01-27-2018, 10:59 PM
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What do you use for paper on the floor? Where do you store the "filter wall" when not in use to keep the intake filters clean? I used an exterior door casing and anchored it to the wall and then installed J channel that mount to plywood with 8 16X16 furnace filters on the exhaust side. This keeps the majority of over spray off the fans. I love your set up, but the storage of the filter wall may be an issue for me to copy.
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Old 01-28-2018, 06:34 AM
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Originally Posted by 35prog View Post
What do you use for paper on the floor? Where do you store the "filter wall" when not in use to keep the intake filters clean? I used an exterior door casing and anchored it to the wall and then installed J channel that mount to plywood with 8 16X16 furnace filters on the exhaust side. This keeps the majority of over spray off the fans. I love your set up, but the storage of the filter wall may be an issue for me to copy.
After I finish the paint job on this car I figure it will be at least a few years before I paint again. My plan is to remove the filters and put them back in the box they came shipped in. Then I'll use a marker and number all the piece of wood and metal ties and then snap a photo of it for later reference. I'll then dismantle it, put all the ties in a bag. Storage is will be super easy that way and re-assembly when the time comes should be really easy.

The paper on the floor is from Lowes.
https://www.lowes.com/pd/Blue-Hawk-B...40-ft/50265367

If the spray masking ends up not working that good for the exhaust fans, I will consider designing some sort of exhaust filter frame for my next job. Maybe something like you suggest. l decided to wait to clean my fans until I finish painting the rest of the parts on this car.

I also lightly sprayed the USC Magic Mask on top of it so the paper would hold dust and overspray. That worked really well.
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Old 01-28-2018, 10:01 AM
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Nice set up. I would also highly recommend exhaust filters. I believe if you look closely or feel the surface, you will have overspray on your exterior siding. It might not be noticeable in your case because it would be white on white.
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Old 01-28-2018, 01:57 PM
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What kind of fans are they?
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Old 01-28-2018, 03:25 PM
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Originally Posted by old40ford View Post
What kind of fans are they?

.....................https://www.jdmfg.com/industrial/rec...drive-drum-fan
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Old 01-28-2018, 06:25 PM
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Amazing vintage Texaco set up you have there, very impressive
Your paint set up is better than ive seen many paint in, especially back in the days. Wow what a set up
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Old 01-28-2018, 08:20 PM
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Thanks Rob and Scotty!

Hey Rob,
Here's a build thread on my gas station workshop:

https://www.hotrodders.com/forum/desi...ge-130979.html

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Old 01-29-2018, 03:11 PM
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Now that is a damn cool garage...
and car...
and truck...
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Old 01-29-2018, 03:29 PM
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Now that is a damn cool garage...
and car...
and truck...
Got a build thread for that too!
https://www.trifive.com/forums/showthread.php?t=107699
Start-to-finish cab-off mild restomod.

Here's what it looks like now:


Last edited by roger1; 01-29-2018 at 03:57 PM.
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Old 01-29-2018, 03:40 PM
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That is really a great garage theme, so nicely done. I wish I could find that gas price now.
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