I understand that powder coating aluminum parts can severly reduce their 
strength (depending on the alloy and temperature used) due to the heating 
process.  I don't have any references at hand but I would study this before 
coating strength critical aluminum parts.

Jon

-----Original Message-----
From: "Randy Smith" <[email protected]>
Sent: Thursday, January 20, 2011 4:45pm
To: "KRnet" <[email protected]>
Subject: RE: KR> powdercoating parts

I had my engine mount and retractable gear legs on my 47 Bellanca Cruiseair 
powder coated when I restored the plane in 2000. I was told that cracks would 
not show by some but the APIA I used said it was alright. A year ago I had oil 
on the floor below my gear. I pulled the gear and with no trouble found the 
gear cracked at the top. Cleaned it off welded it and had the gear powder 
coated again.

--- On Wed, 1/19/11, Mark <[email protected]> wrote:

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