Jarrett,
I went back and re-read the section from AC43.13.  It specifically says for protecting the interiors of structural steel and aluminum tubing against corrosion.  Go figure!!  I have visions of my control tubes rotting from the inside out... not good.
Mark S.
LNCE 65%

<snip>
AC43.13,
 Chapter 6, Section 3, CORROSION PROTECTION MEASURES FOR BASIC MATERIALS, paragraph 6.42 states,
"TUBE INTERIORS.  Protect the interiors of structural steel and aluminum tubing against corrosion.  A small amount of water entrapped in a tube can corrode entirely through the tube thickness in a short period.  Coat the tube interior by flushing with hot linseed oil, paralketone, or other approved corrosion inhibitor.  The flushing liquid is usually introduced through small holes drilled in the tubing.  Allow the flushing liquid to drain and plug the holes with a screw or by other means to prevent entry of moisture.  Air and watertight sealing of the tubing will also give adequate protection against corrosion if the tubing is internally dry before being sealed.
<snip>

At 04:05 PM 2/12/2003 -0500, you wrote:

I could be totally out to lunch but, isn't that Linseed oil treatment used
only in like a 4130 Chromoly [sp] tube. I was under the impression it was
used lots by Rag and Tube builders. But then again... I was wrong once
before  ;-)

Jarrett Johnson

235/320 55%


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