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Protecting tower/concrete interface?

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Subject: Protecting tower/concrete interface?
From: (Frank Donovan)
Date: Thu, 5 Sep 1996 07:39:02 -0400 (EDT)
Hi Kirk!

I had the same problem and significant rust had developed before I
discovered it!

Here's what I did:

 - Firstly, you must (MUST!) remove ALL rust at the tower/concrete
interface.  I used a star drill to dig into the concrete until nice shiny
galvanized tower was visible all around all three legs.  Then I (actually
KF3P) sandblasted the legs until nice shiny steel showed thru every place
where rust was previously present.

 - Next, I used cold galvanize paint to coat the bare shiny steel, then a
second coat the next day.

 - Next, I applied a Rustoleum primer intended for galvanized steel  (I
understand they have changed the name, but the paint and primer were
then known as Galva-Grip).  I then applied the finish coat of
Galva-Grip paint (not primer).  I also allowed the primer and paint to
coat the nearby concrete foundation so that it created a seal around the

 - Lastly, I used "GE Silicone II" Concrete seal to thoroughly seal the
concrete/steel interface from the weather.  It adheres very well to
concrete and steel.  

Like you, I considered using a layer of concrete, but
rejected that approach for the same reasons u did!

Be sure you re-grade the area around the tower base so mud can never 
collect on the tower foundation again!  And inspect the foundation

Good luck!

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