[Rhodes22-list] corrosion X

[Brad Haslett]

Ed,

I was able to do a little more research tonight on CorrosionX.  It seems to
be a very popular product in the gun and bicycle business as well as those
who use salt-water fishing tackle.  Here is an excerpt I found from an
article on corrosion control for light aircraft.

I'm definitely going to take the time and spend the dough to "fog" N4451V
while she's opened up.  The CoraShen is next.

Brad

----------------------------

There are two basic types of CPCs that are commonly used on GA aircraft. One
type, which has been used successfully for decades, creates a thin, waxy
film that acts as a sealant to block moisture and other electrolytes from
reaching the underlying metal -- much like paint, but much easier to apply
(and much less permanent). The most widely used products of this type are
LPS-3 and Boeshield T-9.



[image: (134 Kb)]<http://www.avweb.com/newspics/189857_corrosion_diagram.jpg>
Thin-film dielectrics consist of man-made molecules with one end that
adheres to metals and the other end that blocks moisture and electrolytes.
(Click for larger view.)


  The other type of CPC, which first became available in the late 1980s, is
known variously as a thin-film dielectric (TFD) or fluid thin-film coating
(FTFC). Both ACF-50 (made by Lear Chemical Research Corporation in Canada)
and CorrosionX (made by Corrosion Technologies Corporation in Dallas, Texas)
employ this technology. These compounds consist of complex, man-made
molecules with one end that adheres to metals and the other end that blocks
moisture and electrolytes.

Which type of CPC works best? Both types have ardent supporters, and each
has its own advantages and disadvantages. The waxy film formers (LPS-3,
Boeshield T-9) tend to last longer (three or four years between
applications) and don't "weep" for more than a few days. The thin-film
dielectrics (ACF-50 and CorrosionX) tend to penetrate better into lap joints
and rivet holes, and to do a better job of neutralizing active corrosion
cells -- but they need to be reapplied more frequently (generally every two
years) and may "weep" for weeks or months after application (particularly if
applied a bit too generously).

All four products do an excellent job of corrosion prevention. Unless your
aircraft is based in a bone-dry climate or was manufactured in the last 10
years, regular treatment with one of these CPCs should be an indispensable
part of your maintenance program. It's not unusual for airframe corrosion to
go undetected until it gets so bad that it's uneconomical to repair. An
ounce of corrosion prevention is worth a pound (or maybe $20,000) of cure.




On 8/24/07, Tootle <ekroposki at charter.net> wrote:
>
>
> Brad:
>
> Interesting product:  http://www.corrosionx.com/ma_use.html
>
> Last spring there was information about a similar product that the
> military
> used, but I lost that web site.
>
> Do not tell Rummy, he still swears by WD 40, in fact it was after his
> recommendation on WD 40 that the other product was mentioned.  All I
> remember was that it had all the military technical specs cited.
>
> Ed K
> Greenville, SC, USA
> --
> View this message in context:
> http://www.nabble.com/corrosion-X-tf4325081.html#a12317981
> Sent from the Rhodes 22 mailing list archive at Nabble.com.
>
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