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Exterior Paint - Alodine first?

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n277dl

Joined: 28 May 2007
Posts: 49
Location: Muscatine IA

Posted: Sun Nov 22, 2009 12:48 pm Post subject: Exterior Paint - Alodine first?

Group,

  I'm getting to the point of painting.  I'm working with a local guy that works with a aircraft maintenance / painting facility.  Things are slow at work (not many investing in paint jobs on jets or Kingair's   ) and he has a body shop at his house that we'll use and I plan to paint before first flight.



Question is around alodine.  On the 7A, I didn't alodine at all but used a self etching primer and sprayed over the top with Imron paint.  I've had no problems with the 7A but this time I'm working with a different individual and he is suggesting etch/alodine before paint.  I have no bias either way and would tend to allow the "expert" to choose his method.



I'm curious if most "professional" shops etch/alodine or simply self etch prime the exterior in prep for paint?  



Thanks for any information on your experiences.



Doug 



Do not archive

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_________________
Doug
"Fools" are always more creative than process people and will always find ways to ruin a perfectly good set of processes.

gengrumpy(at)aol.com
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Posted: Sun Nov 22, 2009 12:56 pm Post subject: Exterior Paint - Alodine first?

I recommend you either use alodine or an etcher called "Prekote".



Prekote is much friendlier to work with.



Self etching primer does not do the job....



grumpy

N184JM



On Nov 22, 2009, at 2:48 PM, n277dl wrote:



 	  Quote: 	
		   



 Group,

  I'm getting to the point of painting.  I'm working with a local guy  

 that works with a aircraft maintenance / painting facility.  Things  

 are slow at work (not many investing in paint jobs on jets or  

 Kingair's   ) and he has a body shop at his house that we'll use  

 and I plan to paint before first flight.



 Question is around alodine.  On the 7A, I didn't alodine at all but  

 used a self etching primer and sprayed over the top with Imron  

 paint.  I've had no problems with the 7A but this time I'm working  

 with a different individual and he is suggesting etch/alodine before  

 paint.  I have no bias either way and would tend to allow the  

 "expert" to choose his method.



 I'm curious if most "professional" shops etch/alodine or simply self  

 etch prime the exterior in prep for paint?



 Thanks for any information on your experiences.



 Doug



 Do not archive



 --------

 Doug

 &quot;Fools&quot; are always more creative than process people and  

 will always find ways to ruin a perfectly good set of processes.





 Read this topic online here:



 http://forums.matronics.com/viewtopic.php?p 74326#274326

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ricksked(at)embarqmail.co
Guest

Posted: Sun Nov 22, 2009 2:34 pm Post subject: Exterior Paint - Alodine first?

I had poor prep results with Prekote, I used SW aluminum etch with a red scotchbrite pad to prep the metal....Prekote requires much more physical labor to work...I know the USAF uses it but they also have  endless supplies if energetic Airmen to scrub the air frame with it 



Rick Sked

N246RS

Sent via BlackBerry by AT&T



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ricksked(at)embarqmail.co
Guest

Posted: Sun Nov 22, 2009 2:42 pm Post subject: Exterior Paint - Alodine first?

Etch and Alodine is the accepted aircraft method....auto body shops use automotive methods except Land Rover...why? Aluminum body..Jet glow-made by SW recommends Alodine under their epoxy primer...so if your painter wants it I'd go with his recommendation....where is he gonna dump it in his garage after he applies it?



Rick Sked

N246RS

Sent via BlackBerry by AT&T



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