hi there my name is matt im from south texas, im currently in the process of moving into a new house and it has a 2 car garage. im new to autobody and i have a small mazda b2300 truck that i am wanting to paint. I have talked to a few locals about painting it but is out of my price range and the moment. So i decided to use the 2 car garage we have an turn it into a temp paint booth. It has 2 single car doors with one side entrance door leading outside to a side street. Im not worried about putting up anything special on the inside( like covering up walls or what not). I have a few ideas on fan and ventilation. i wanted to post a few pictures up and see what yall think? I thought to use the bottom of the garage door, or maybe both for inlet air, build a a/c filter panel across the bottom and use the entry door on the side for the fans. 3 fans attached to a frame with pre-filters on them blowing outside? would this work? should one garage door be enought or should i do both. sorry for the lengthy post. I will be using a harbor freight 29 gallon compressor and a budget gun of some sort. These are not my pictures, Just an idea
2 car garage paint booth
- Thread starter isenegger
- Start date
RenewAP
Promoted Users
Not ideal, but it will certainly will work. 1 fan on high will be enough to do the job, it will just be cloudy for a while after each clear coat. The main thing is to blow off all shelves and garage door tracks, as well as anything else that can collect dust. Do this long before you are going to even do primer. Have the fan going while doing this to get it out of the painting area.
MJM
Promoted Users
He will have plenty of time when spraying clear for the fog cloud to dissipate using a 29 gallon compressor. I don't think it will keep up spraying continuous.
RosharonRooster
Promoted Users
Spend about a week browsing this forum....
I thought about that as well. I guess I’ll figure out a way to block off the top of the door. Should I use the bottom of the door, or doors as the intake side with the fans on the entry door or the other way around so that there is not a fan sucking out the fumes risking an explosion? Could i just use one door open or use both? Thanks
'68 Coronet R/T
Oldtimer
A few things to consider:
1. How close are your neighbors? If close you run the risk of being reported when they smell the fumes.
2. What is the area like where you live? Dry & dusty, lots of trees, insects, etc.
3. How much to you have to spend? A good air compressor, filtration system, regulator, air hose, high flow fittings, spray guns, etc. all cost big money.
Personally, I started out like you are. Built a dividing wall and covered it with plastic sheeting. It was then that I opted for a positive pressure booth.
1. How close are your neighbors? If close you run the risk of being reported when they smell the fumes.
2. What is the area like where you live? Dry & dusty, lots of trees, insects, etc.
3. How much to you have to spend? A good air compressor, filtration system, regulator, air hose, high flow fittings, spray guns, etc. all cost big money.
Personally, I started out like you are. Built a dividing wall and covered it with plastic sheeting. It was then that I opted for a positive pressure booth.
1. It’s a typical neighborhood. It’s a corner lot, side entrance door faces a side street
2. It’s not super dry or lots of trees
3. I have a Harbor freight 29gal 2hp compressor that will do 7.3 cfm @ 40 it claims, was gonna plumb in a tranny cooler as an after cooler before tank, 3m regulator, flexzilla green hose, I need to buy guns, probably a HF purple for primer and some sort LPLV gun for bc/cc. Just trying to make the truck decent for a 16yr old kid. Here is the truck
'68 Coronet R/T
Oldtimer
You can see in this picture the plastic wall separating my 2 car garage.
I built an end wall with a large plywood box behind the filters to use as a plenum.
With the windows open in the main garage, I would draw air from there, through the filters to catch and dust and debris, and then out the garage door.
Opening the door just enough to keep a positive pressure in the booth.
Later on I framed the left wall in, added angled ceiling corners, doubled the filter bank size and the number of fans, plus added more lighting.
I also started out with a 2hp compressor but quickly sold it and bought a 6hp 2 stage 80 gallon unit. Very glad I did.
Knowing that manufactures often over rate their compressor output, I highly doubt the ratings on that Horrible Freight compressor.
Trying to spray with a minimal sized compressor is asking for trouble with atomization and spraying consistency. Plus it will be running constantly trying to keep up, which generates more heat and that produces moisture.
My Iwata LPH 1.4 requires 9 CFM to atomize correctly. Tekna Copper takes 11-13 CFM, DeVilbiss guns generally run in the 9-10 CFM range.
Can you get by with it, probably but only if you spray one panel at a time and wait for the compressor to catch up between passes.
I built an end wall with a large plywood box behind the filters to use as a plenum.
With the windows open in the main garage, I would draw air from there, through the filters to catch and dust and debris, and then out the garage door.
Opening the door just enough to keep a positive pressure in the booth.
Later on I framed the left wall in, added angled ceiling corners, doubled the filter bank size and the number of fans, plus added more lighting.
I also started out with a 2hp compressor but quickly sold it and bought a 6hp 2 stage 80 gallon unit. Very glad I did.
Knowing that manufactures often over rate their compressor output, I highly doubt the ratings on that Horrible Freight compressor.
Trying to spray with a minimal sized compressor is asking for trouble with atomization and spraying consistency. Plus it will be running constantly trying to keep up, which generates more heat and that produces moisture.
My Iwata LPH 1.4 requires 9 CFM to atomize correctly. Tekna Copper takes 11-13 CFM, DeVilbiss guns generally run in the 9-10 CFM range.
Can you get by with it, probably but only if you spray one panel at a time and wait for the compressor to catch up between passes.
MJM
Promoted Users
I've see lights used in those angled ceiling corners. Is there another reason for having those angled ceiling corners?
'68 Coronet R/T
Oldtimer
The angle of the lights does help reduce shadows on the sides of the vehicle. I believe the angled edge helps reduce turbulence as well.
One of the issues I was having a slight amount of roll back, where the overspray for the most part was leaving the booth but a small amount would travel up and over the main stream of air and work it's way back to the front of the booth.
This is one of the reasons I doubled the size of the filter bank. My thinking was to move a "wall" of air from the front to the back, rather than a centered stream of air.
One of the issues I was having a slight amount of roll back, where the overspray for the most part was leaving the booth but a small amount would travel up and over the main stream of air and work it's way back to the front of the booth.
This is one of the reasons I doubled the size of the filter bank. My thinking was to move a "wall" of air from the front to the back, rather than a centered stream of air.
I guess I was just thinking if this is the only thing, then maybe do all the prep work and de-trimming and take it a place like maaco and have it painted.
JimKueneman
Mopar Nut
I call those bugs natures Pearl and it adds value to the car.
tomsteve
Member
only 1 hair?!?!?! they are awesome dogs but just thinking about petting one and i have husky hair appear.
'68 Coronet R/T
Oldtimer
Dog hair? I can't imagine a job without it. Two German Shepherds and a Border Collie live here.
Kawickrice
Promoted Users
Beautiful dog you have there.