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  #1  
Old 09-20-2021, 09:16 AM
Sully73 Sully73 is offline
 
Join Date: Jul 2020
Location: Lincoln, NE
Posts: 34
Default Painting my RV-4

I am getting ready for paint on my disassembled RV-4. I am really excited.
After some research, I have decided to use "Prekote" for the aluminum prep then an epoxy primer from PPG (CRE-121) then 2-3 coats of Single Stage Urethane paint from PPG (AUE360).
I will paint either a white or red base and later add vinyl decals for numbers and some decorations.

Question, how much primer and paint should I buy?

Any advice on my plan?

Thanks in advance.
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  #2  
Old 09-20-2021, 09:53 AM
94kb 94kb is offline
 
Join Date: Jan 2005
Location: Waco, Texas
Posts: 146
Default

I used 1 gal of 1:1 epoxy, 1 gal of white, 1 gal of yellow and 2 qts of blue. I painted the RV4 in 2006 and the paint has held up well and the decals are ok but the paint can be polished and the decals will fade some. If it is not a difficult scheme I would recommend paint and no decals.

Ken
https://photos.app.goo.gl/KbWWsFHXENZLHCDCA
https://photos.app.goo.gl/acQZZ4EMGXWgXdan7
first photo 2006 second photo 2020
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RV-4 N63KB low wing
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  #3  
Old 09-20-2021, 10:16 AM
Sully73 Sully73 is offline
 
Join Date: Jul 2020
Location: Lincoln, NE
Posts: 34
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Wow, That is a beautiful RV-4 Good job and thanks for the good advice.
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  #4  
Old 09-20-2021, 11:55 AM
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acam37 acam37 is offline
 
Join Date: Aug 2012
Location: Lufkin Tx
Posts: 758
Default

After acid etch you should alodine before priming.
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  #5  
Old 09-20-2021, 12:57 PM
wirejock's Avatar
wirejock wirejock is offline
 
Join Date: Oct 2005
Location: Estes Park, CO
Posts: 4,665
Default Alodine

Quote:
Originally Posted by acam37 View Post
After acid etch you should alodine before priming.
I agree but stress proper PPE and collection of chems. I Alodined mine. It wasn't a pleasant process. I plan to vinyl wrap and wanted it protected under the vinyl.
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Donated 01/01/2021, plus a little extra.
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I cannot be, nor will I be, held responsible if you try to do the same things I do and it does not work and/or causes you loss, injury, or even death in the process.
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  #6  
Old 09-20-2021, 01:04 PM
Carl Froehlich's Avatar
Carl Froehlich Carl Froehlich is offline
 
Join Date: Dec 2007
Location: Dogwood Airpark (VA42)
Posts: 3,178
Default

Quote:
Originally Posted by acam37 View Post
After acid etch you should alodine before priming.
I suggest not doing this. A good epoxy primer and urethane top coat provides for a very durable finish.

Why alodine if there is nothing to gain?

Carl
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  #7  
Old 09-20-2021, 02:17 PM
snoop9erdog snoop9erdog is offline
 
Join Date: Oct 2005
Posts: 280
Default

Quote:
Originally Posted by Sully73 View Post
I am getting ready for paint on my disassembled RV-4. I am really excited.
After some research, I have decided to use "Prekote" for the aluminum prep then an epoxy primer from PPG (CRE-121) then 2-3 coats of Single Stage Urethane paint from PPG (AUE360).
I will paint either a white or red base and later add vinyl decals for numbers and some decorations.

Question, how much primer and paint should I buy?

Any advice on my plan?

Thanks in advance.

Where are you buying the PPG paint and Primer?
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St. Johns, AZ (SJN)
N646A RV9
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  #8  
Old 09-20-2021, 07:57 PM
AzAero AzAero is offline
 
Join Date: Dec 2018
Location: Queen Creek, AZ
Posts: 22
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No need to Alodine as Prekote is an alternative to the "Etch and Alodine" pretreatment process. If I recall it requires a thorough scotch brite scrub, rinse and prime as soon as thoroughly dry and even a final solvent wipe is discouraged.
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  #9  
Old 09-20-2021, 09:01 PM
rmarshall234 rmarshall234 is offline
 
Join Date: Jun 2008
Location: San Diego, CA
Posts: 268
Default

Quote:
Originally Posted by AzAero View Post
No need to Alodine as Prekote is an alternative to the "Etch and Alodine" pretreatment process. If I recall it requires a thorough scotch brite scrub, rinse and prime as soon as thoroughly dry and even a final solvent wipe is discouraged.
There you go...from a painting professional.


I've used Prekote with very good success as well. I think it was manufactured for Boeing and is the go-to-alternative to the previous harsh on your health and harsh on the environment processes.
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  #10  
Old 09-21-2021, 07:42 AM
David Paule David Paule is offline
 
Join Date: Dec 2009
Location: Boulder, CO
Posts: 4,994
Default

"Precoat," that's a new one to me. What is it, how is it used, and who supplies it?

Sorry for the thread creep....

Thanks,
Dave
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