Today's Message Index:
----------------------
1. 11:28 AM - Rusty RV-8 Steel Parts (Matt Dralle)
2. 01:27 PM - Re: Rusty RV-8 Steel Parts (vanremog@aol.com)
3. 04:02 PM - Re: Rusty RV-8 Steel Parts (HCRV6@comcast.net)
Message 1
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| Subject: | Rusty RV-8 Steel Parts |
I sent this email to Van's today. Something to watch out for...
>Date: Sun, 13 Jul 2014 11:23:02 -0700
>To: support@vansaircraft.com
>From: Matt Dralle <dralle@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.
>
>-
>Matt Dralle
-
Matt Dralle
RV-8 #82880 N998RV "Ruby Vixen"
http://www.mattsrv8.com - Matt's Complete RV-8 Construction Log
http://www.mattsrv8.com/Mishap - Landing Mishap Rebuild Log
http://www.youtube.com/MattsRV8 - Matt's RV-8 HDTV YouTube Channel
Status: 172+ Hours TTSN - Rebuilding Fuselage After Landing Mishap...
RV-6 #20916 N360EM "The Flyer"
http://www.mattsrv6.com - Matt's RV-6 Revitalization Log
Status: 180+ Hours Since Purchase - Upgrades Complete; Now In Full Flyer Mode
Matt's Livermore Airport Live ATC Stream!
Check out the live ATC stream directly from my hangar at the Livermore
Airport. Includes both Tower and Ground transmissions. Archives too!
For entertainment purposes only. http://klvk.matronics.com
Message 2
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| Subject: | Re: Rusty RV-8 Steel Parts |
Go back and look at the archives. I warned about this very issue when Van'
s first began this "new" process and no one was interested. The only prope
r way to protect steel parts from corrosion by painting (not plating) is b
y blasting the surface rust free, applying a well bonded (clean with tooth)
, tight (epoxy) sacrificial (chromate) layer and, if you like, a well bonde
d (within the required time to crosslink) a good top coat. This has been we
ll established. Powder coating is decorative, not protective.
-GV
-----Original Message-----
From: Matt Dralle <dralle@matronics.com>
Sent: Sun, Jul 13, 2014 11:31 am
Subject: RV-List: Rusty RV-8 Steel Parts
I sent this email to Van's today. Something to watch out for...
>Date: Sun, 13 Jul 2014 11:23:02 -0700
>To: support@vansaircraft.com
>From: Matt Dralle <dralle@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 co
ated
in a textured black to match the rest of my interior. While stripping, I h
ave
noticed a couple of things regarding factory powder coating. Perhaps the m
ost
disturbing was the high build up rust under parts in certain areas, primari
ly
the ones made from the 4130 plate (see attached pictures). This will event
ually
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 preparati
on
such as scuffing and/or phosphating. All of my steel parts will be undergo
ing
these steps prior to powder coating for the absolute best possible protecti
on
from future rust break through. Additionally, the adhesion of the powder c
oat
is significantly better with these additional surface preparations. The co
st
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 simp
ly
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 out
lined
above.
>
>FYI.
>
>-
>Matt Dralle
-
Matt Dralle
RV-8 #82880 N998RV "Ruby Vixen"
http://www.mattsrv8.com - Matt's Complete RV-8 Construction Log
http://www.mattsrv8.com/Mishap - Landing Mishap Rebuild Log
http://www.youtube.com/MattsRV8 - Matt's RV-8 HDTV YouTube Channel
Status: 172+ Hours TTSN - Rebuilding Fuselage After Landing Mishap...
RV-6 #20916 N360EM "The Flyer"
http://www.mattsrv6.com - Matt's RV-6 Revitalization Log
Status: 180+ Hours Since Purchase - Upgrades Complete; Now In Full Flyer Mo
de
Matt's Livermore Airport Live ATC Stream!
Check out the live ATC stream directly from my hangar at the Livermore
Airport. Includes both Tower and Ground transmissions. Archives too!
For entertainment purposes only. http://klvk.matronics.com
Message 3
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| Subject: | Re: Rusty RV-8 Steel Parts |
I had the same problem back in 2002 and 2003 with the canopy frame for my RV-6,
which at that time was the only powder coated part I received. after that I ordered
the engine mount bare and painted it myself. Sound like not much has changed
with Van's powder coating supplier.
Harry Crosby
----- Original Message -----
From: "Dralle, Matt" <dralle@matronics.com>
Sent: Sunday, July 13, 2014 11:27:09 AM
Subject: RV-List: Rusty RV-8 Steel Parts
I sent this email to Van's today. Something to watch out for...
>Date: Sun, 13 Jul 2014 11:23:02 -0700
>To: support@vansaircraft.com
>From: Matt Dralle <dralle@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.
>
>-
>Matt Dralle
-
Matt Dralle
RV-8 #82880 N998RV "Ruby Vixen"
http://www.mattsrv8.com - Matt's Complete RV-8 Construction Log
http://www.mattsrv8.com/Mishap - Landing Mishap Rebuild Log
http://www.youtube.com/MattsRV8 - Matt's RV-8 HDTV YouTube Channel
Status: 172+ Hours TTSN - Rebuilding Fuselage After Landing Mishap...
RV-6 #20916 N360EM "The Flyer"
http://www.mattsrv6.com - Matt's RV-6 Revitalization Log
Status: 180+ Hours Since Purchase - Upgrades Complete; Now In Full Flyer Mode
Matt's Livermore Airport Live ATC Stream!
Check out the live ATC stream directly from my hangar at the Livermore
Airport. Includes both Tower and Ground transmissions. Archives too!
For entertainment purposes only. http://klvk.matronics.com
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