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  #1  
Old 09-12-2021, 07:12 AM
nohoflyer nohoflyer is offline
 
Join Date: Sep 2018
Location: Brooklyn, NY
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Default Corrosion

I went into my shop after a two week absence and found that I had quite a bit of surface corrosion on my aileron skin. The only thing I can imagine it being from would be my body sweat as it was quite hot last time and I was sweating quite a bit. I was surprised that the protective coating on the aluminum would have allowed for this to happen. Does anyone have any thoughts on this (besides the fact that itís gross).
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  #2  
Old 09-12-2021, 07:44 AM
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pfactor pfactor is offline
 
Join Date: Jun 2006
Location: Full Time RV
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Default

Yes sweat .. Do a search here
and net .
Sweat aluminum corrosion.

Sweaty Aluminum handlebars on bikes comes up a lot as well..

Sure u already know...but don't use crud cutter etc cleaning etc sprays .. .

Sorry for your status , glad its somewhat early .. . I had some on hstab after absence and ended up w painted instead of polished tail..
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  #3  
Old 09-12-2021, 07:27 PM
Captain Avgas Captain Avgas is offline
 
Join Date: Oct 2005
Location: Melbourne, Australia
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Default

Quote:
Originally Posted by nohoflyer View Post
I went into my shop after a two week absence and found that I had quite a bit of surface corrosion on my aileron skin. The only thing I can imagine it being from would be my body sweat as it was quite hot last time and I was sweating quite a bit. I was surprised that the protective coating on the aluminum would have allowed for this to happen. Does anyone have any thoughts on this (besides the fact that itís gross).
It's a pretty good example of how little corrosion protection the Alclad (pure aluminium) layer actually provides. But easy to rectify minor corrosion on the exterior which will be prepped and painted later. The interior is a different matter altogether....I trust that is properly primed.
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  #4  
Old 09-13-2021, 06:37 AM
nohoflyer nohoflyer is offline
 
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Quote:
Originally Posted by Captain Avgas View Post
It's a pretty good example of how little corrosion protection the Alclad (pure aluminium) layer actually provides. But easy to rectify minor corrosion on the exterior which will be prepped and painted later. The interior is a different matter altogether....I trust that is properly primed.
Funny you say that because I built it backwards and had to take it apart allowing me to inspect and fix the interior areas I would not have seen otherwise.
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