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  #21  
Old 10-20-2015, 09:55 AM
RKellogg RKellogg is offline
 
Join Date: Oct 2009
Location: Newark, IL
Posts: 287
Arrow well, since you asked...

Quote:
Originally Posted by gordodavis View Post
Hey Roger, do you have any photos of your paint booth you wrote about?

-Gordon
... I found a couple of pix. The PB uses two existing hanger walls. A third wall and ceiling are 6 mil Visqueen on 2x4 stud frame. The end wall is a full-width roll-up visqueen door, with rope and pulleys.

Nominal size of 12' x 20 ' was just barely adequate for the rolling fuselage. Plenty of room for wings, one at a time. The rolling, rotating cantilevered wing racks made that job much easier. Rotating the wing to an orientation that was easy to see and reach reduced a bunch of errors. When I spotted a sag forming I rotated the wing 180 degrees and the sag quickly disappeared back into the surface, almost like magic. I am willing to spend time/money to make rotating paint fixtures, as the final result is so much better, at least for this amateur. The most embarrassing painting errors occurred on parts that could not easily be rotated. Next time the fuselage will rotate, too.

Header/filter box is visible at far end. Drilled 800 holes in floor, laid out in a repeating pattern that was supposed to eliminate more than three holes on any straight line, for strength. Floor is pressure treated 3/4 plywood on 2x4 PT joists, 24" OC. Floor was strong enough for a frame-up Willys Jeep project. Pix of blower, filters in and out, roll-up door, and chimney are on other computer, methinks, else I can take some new ones....

- Roger





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  #22  
Old 10-20-2015, 03:22 PM
ijustwannafly's Avatar
ijustwannafly ijustwannafly is offline
 
Join Date: Oct 2014
Location: Colorado
Posts: 248
Default

Quote:
Originally Posted by Steve Melton View Post
Kyle, the PPG aviation website pictures are not impressive. what's up with that? where's the marketing? especially that lower picture on the left.

Steve

I have just the guy for you to talk to!

I have spent lots of time on the phone with PPG tech support. I just switched from akzo over a primer debacle to PPG super K and needed lots of info from them

They were so great to deal with! Even as a consumer i got direct contact to tech support (unlike akzo who refuses to speak to consumers) and they answer the phone right away. Same person every time and he is like my own personal support line. He can make recommendations on products and procedures.

Ill PM you. I have just the guy for you to talk to!
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  #23  
Old 10-20-2015, 04:33 PM
A2022 A2022 is offline
 
Join Date: Apr 2011
Posts: 2,425
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what about PPG Concept paint, single stage? urethane! Linen white color, like a Chevy truck. the guy here says he has both grey and white primer. which primer color?
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  #24  
Old 10-20-2015, 04:34 PM
A2022 A2022 is offline
 
Join Date: Apr 2011
Posts: 2,425
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that's a nice booth!





[/quote]
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  #25  
Old 10-20-2015, 05:06 PM
Kyle Boatright Kyle Boatright is offline
 
Join Date: Aug 2005
Location: Atlanta, GA
Posts: 5,146
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Quote:
Originally Posted by Steve Melton View Post
what about PPG Concept paint, single stage? urethane! Linen white color, like a Chevy truck. the guy here says he has both grey and white primer. which primer color?
Concept comes in a lot of flavors, so check the specifics of the one you're being offered. PPG has changed formulations over the years, with the arrival of newer VOC guidelines and such.

As far as primer color goes, it is best (IMO) to use a contrasting primer (grey, in this case) so you'll have a good indication as to whether you're getting good coverage with your finish coats. OTOH, if you're sure you can lay down even coats, you'd be able to get away with a little less paint over white primer.
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Marietta, GA
2001 RV-6 N46KB
2019? (actually 2022) RV-10 N46BX
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  #26  
Old 10-20-2015, 07:05 PM
Larry DeCamp Larry DeCamp is offline
 
Join Date: Apr 2010
Location: Clinton, Indiana
Posts: 1,292
Default Blower / fixtures / primer

I used a furnace blower for 10x7x16 booth. It was a lot of velocity. R Kellogg has some elegant analysis. Kyle is correct o primer coor, white over gray can be sensitive to coating weight consistency,ask me how I know. Last, spend the time fixture little parts, don't hang them on wire. They fly and flutter and make things stressful. Fixture as many things as possible to spray down hand not verticals.
Fuse rotisory is a must. I used 3" pvc pipe in wing holes behind the spar for good balance and set them on simple wood stands to rotate. Very simple and makes wings an easy 45 degree application. If you overdo it just rotate to level the paint. Pics by email if desired.
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RV3B sold
RV-4 fastback in process w/ Superior roller 360/AFP/G3X/CPI/Catto3b
Clinton, IN
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  #27  
Old 10-20-2015, 07:55 PM
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Champ Champ is offline
 
Join Date: Apr 2012
Location: Kingsville, Ontario, Canada
Posts: 398
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I'm currently setting up a booth in my garage (21x12x9h, studs & 6 mil, 2 2'x2' inlet filters, pull thru furnace fan in the booth, interior florescent lights, using PPG polyurethane on my RV-8. I have used a furnace fan in previous paint booths and have had good ventilation & no appreciable fumes in the booth. Since this paint job will probably be more "intense" than previous jobs I'm a little concerned about the fan motor not being explosion proof. What do you think? Are 1/3 hp explosion proof motors available - used, cheap? Hope I'm not hijacking this thread since it seems to be covering various pb issues.
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Bellanca Champ 7ACA since 1986, restored 1990.
RV-8 IO375, MTV-9-B/183-50a, PMags, OW Award Oshkosh 2017
2022 Donation In
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  #28  
Old 10-20-2015, 08:32 PM
Larry DeCamp Larry DeCamp is offline
 
Join Date: Apr 2010
Location: Clinton, Indiana
Posts: 1,292
Default Explosion potential

Dennis,
I have painted 3 airplanes with solvent based paint. Fans ranged from Walmart plastic fan to furnace blower. The issue is Lower Explosin limit of suspended solvent. There s no practical way to know what your solvent density is. But, no explosions!
This last plane as Stewart water based. No concern.
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RV3B sold
RV-4 fastback in process w/ Superior roller 360/AFP/G3X/CPI/Catto3b
Clinton, IN
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  #29  
Old 10-20-2015, 09:25 PM
A2022 A2022 is offline
 
Join Date: Apr 2011
Posts: 2,425
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Quote:
Originally Posted by Kyle Boatright View Post
Concept comes in a lot of flavors, so check the specifics of the one you're being offered. PPG has changed formulations over the years, with the arrival of newer VOC guidelines and such.

As far as primer color goes, it is best (IMO) to use a contrasting primer (grey, in this case) so you'll have a good indication as to whether you're getting good coverage with your finish coats. OTOH, if you're sure you can lay down even coats, you'd be able to get away with a little less paint over white primer.
There are so many variables to paint selection. I probably don't have the experience to pick the right paint the first time around. As far as the grey vs. white primer, lighting will be a concern so maybe it's better to go with the grey. And there is a guy on the internet blasting Concept white saying it turned to chalk within a couple years. bummer.

Last edited by A2022 : 10-20-2015 at 09:29 PM.
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  #30  
Old 10-20-2015, 10:28 PM
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Sam Buchanan Sam Buchanan is offline
been here awhile
 
Join Date: Dec 2004
Location: North Alabama
Posts: 4,684
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Quote:
Originally Posted by Steve Melton View Post
There are so many variables to paint selection. I probably don't have the experience to pick the right paint the first time around. As far as the grey vs. white primer, lighting will be a concern so maybe it's better to go with the grey. And there is a guy on the internet blasting Concept white saying it turned to chalk within a couple years. bummer.
You have to watch out for those guys on the internet....

Sixteen years on PPG Concept single stage white, black, and red (some of the hardest colors to paint) and the plane is still glossy.



My experience painting with Concept in my backyard shop

And...over a dozen years of white Concept on the '85 S-10, and it still shines very nicely:



And the '74 Beetle painted in my shop with Concept single stage eight years ago (still shines like new):



Unless Concept has gone totally to pot lately, the "guy on the internet" is blowing smoke.
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RV-6

Last edited by Sam Buchanan : 10-20-2015 at 10:42 PM.
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