Matt Dralle
Site Admin
Joined: 08 Nov 2005
Posts: 25627
Location: Livermore CA USA
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 Posted: Sun Jul 13, 2014 10:29 am Post subject: Rusty RV-8 Steel Parts |
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I sent this email to Van's today. Something to watch out for...
| Quote: | Date: Sun, 13 Jul 2014 11:23:02 -0700
To: support(at)vansaircraft.com
From: Matt Dralle <dralle(at)matronics.com>
Subject: Rusty RV-8 Steel Parts
Dear Van's,
I am stripping all of the steel parts on my RV-8 to have them re-powder coated in a textured black to match the rest of my interior. While stripping, I have noticed a couple of things regarding factory powder coating. Perhaps the most disturbing was the high build up rust under parts in certain areas, primarily the ones made from the 4130 plate (see attached pictures). This will eventually cause the powder to flake off.
The other issue is the distinct lack of surface prep on all steel parts! On every single steel part that I have stripped, there is no surface preparation such as scuffing and/or phosphating. All of my steel parts will be undergoing these steps prior to powder coating for the absolute best possible protection from future rust break through. Additionally, the adhesion of the powder coat is significantly better with these additional surface preparations. The cost differential is minimal, since high-end coaters usually do these steps by default.
Many builders faced with changing the color of their steel parts will simply choose to paint or powder coat over the top of the factory powder coating. This will eventually lead to a less-than-satisfactory result for the reasons outlined above.
FYI.
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Matt Dralle
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Matt Dralle
RV-8 #82880 N998RV "Ruby Vixen"
http://www.mattsrv8.com - Matt's Complete RV-8 Construction Log
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Status: 172+ Hours TTSN - Rebuilding Fuselage After Landing Mishap...
RV-6 #20916 N360EM "The Flyer"
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Status: 180+ Hours Since Purchase - Upgrades Complete; Now In Full Flyer Mode
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Check out the live ATC stream directly from my hangar at the Livermore
Airport. Includes both Tower and Ground transmissions. Archives too!
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Matt Dralle
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