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  #1  
Old 02-23-2020, 04:08 PM
Stockmanreef Stockmanreef is offline
 
Join Date: Nov 2012
Location: Midland, mi
Posts: 919
Default Powder Coating Engine Baffles

Are many people powder coating the baffles? I have read that you can rivet everything together then powder coat.

Pictures would be nice for those who have powder coated.

thanks
ken
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RV-14a (serial number 140073)
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Working on the baffles and exhaust
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  #2  
Old 02-23-2020, 05:11 PM
Bavafa Bavafa is offline
 
Join Date: Oct 2007
Location: Sacramento, CA
Posts: 3,246
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If you rivet everything together I highly doubt you will be able to install it.

Some of the parts gets riveted once it is installed but there is no reason you can not test fitted, then have it powder coated then install and rivet it together.

Powder coating is a good option as it makes cleaning the bugs a bit easier but if you are doing it for rust prevention, I would not bother.
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  #3  
Old 02-23-2020, 05:45 PM
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Carl Froehlich Carl Froehlich is offline
 
Join Date: Dec 2007
Location: Dogwood Airpark (VA42)
Posts: 2,410
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I agree that some finish other than bare aluminum is required. Bare aluminum looks pretty sad after a couple of years. Using powder coat however seems to be problematic.

I use PPG single stage urethane paint - same paint used for the interior, just a different color. It is amazingly durable.

Carl
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  #4  
Old 02-23-2020, 05:47 PM
ty1295 ty1295 is offline
 
Join Date: Aug 2011
Location: Jeffersonville, IN
Posts: 362
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I powdercoated mine and so far I am very happy with it. It helps I have a fairly nice powdercoating setup to do it though.
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  #5  
Old 02-23-2020, 05:50 PM
mturnerb mturnerb is offline
 
Join Date: Apr 2015
Location: Ponte Vedra, FL
Posts: 1,299
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I painted mine with Rustoleum engine enamel that happens to match my T-bolt engine pretty well, also the red RTV. Holding up well after 1 yr/90 hrs.

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  #6  
Old 02-23-2020, 05:51 PM
sjhurlbut sjhurlbut is offline
 
Join Date: Jan 2005
Posts: 792
Default baffles

I power coat all my baffles - never an issue.

You'll have to screw together side and rear baffles however (a good thing)
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  #7  
Old 02-23-2020, 06:00 PM
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Av8rRob Av8rRob is offline
 
Join Date: May 2005
Location: Rescue, CA. KROB
Posts: 338
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I just installed my powder coated baffles 30 minutes ago. You can rivet together the bigger sections divided up to front/back/left/right. Do not rivet the cb-00011 as mentioned on 47-12. That will need to be done after some trimming and in place.
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  #8  
Old 02-23-2020, 06:34 PM
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N941WR N941WR is offline
 
Join Date: Jan 2005
Location: SC
Posts: 12,900
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On both of my engines, I left the baffles alone.

My thinking was that in the event of a fire, I wanted fewer things painted up front that could produce toxic fumes.

In addition, baffles tend to crack over time and getting the replacement parts powder coated to match the rest of the baffles may not happen and would always drive me crazy!
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  #9  
Old 02-23-2020, 06:35 PM
David Paule David Paule is offline
 
Join Date: Dec 2009
Location: Boulder, CO
Posts: 4,246
Default Powder-Coated baffles -- Not

I powder-coated the baffles on my C180 about 600 hours ago, and have some experience with it. Here's what I've observed:

I used white. It collects dirt that I've been unable to clean (I don't have a power-washer and would be hesitant to use on on my airplane anyway). Right now it's no longer white - it's a dirty shade of gray.

In a couple areas, the paint is delaminating from the baffle.

As a result of these, I will not powder coat the baffles on the RV-3B I'm building. I'll either use an epoxy primer. On other parts, I've had good luck with the Stewart Systems water-based two-part epoxy primer. It's easy to spray and is tough, but I don't know if it'll get dirty like the powder-coated ones did. Or I might polish the parts instead. Haven't decided yet but I'm leaning towards polishing them.

But absolutely - no powder coat.

Dave
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  #10  
Old 02-24-2020, 07:24 AM
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Bob Martin Bob Martin is offline
 
Join Date: Jan 2005
Location: Charlottesville, Virginia
Posts: 1,222
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I had mine anodized! In GOLD.
They have many colors available.
Cost about 100 dollars.
I prefit/trimmed all parts and cleaned them well.
Very happy with results.
No build up. Rivet color kinda matches.
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Louisa, Virginia KLKU N94TB
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