I use a product called Rusticide. I purchased it at a large paint store in
Clearwater, FL. Apply with brush or rag, rinse with soapy water and then
clear water. Some scubbing may be required if the stuff is etched into the
galvanizing. Use an old tooth brush.
The material is basically phosphoric acid. There is another similar product
sold to boaters for removal of rust stains on the deck. It is a somewhat
dilute formulation compared to Rusticide. Product name I used was "Phoz".
Be aware that the application will change the appearance of the galvanized
surface somewhat, usually making it appear a little lighter. No significant
amount of material is removed. Rather, a new surface compound appears to be
formed. I defer to the chemists on that subject.
Phosphoric acid is used in various forms by auto manufacturers and other
steel fabricators as a primer and rust inhibitor.
INK N4OO
At 08:05 AM 5/18/98 EDT, you wrote:
>Well, here goes my first submission to Towertalk. Thanks in advance. Here is
>the question:
>
>When I was in WV, I had a great mast but unfortunately it wasn't galvanized.
>Some rust ran from the mast onto my tower and caused some unsightly stains on
>a couple of the sections. The sections themselves are not rusting, just
>stained. Does anyone know a way to get this off without damaging the
>galvanizing on the sections?
>
>Someone told me to use some steel wool and another friend said absolutely not
>as it might damage the galvanizing. This stuff is obviously on the surface
>and doesn't appear to have invaded the finish, just stained it.
>
>This MUST have come up somewhere in the past. I would appreciate any
>suggestions.
>
>73, Steve, N4JQQ/C6AFP, now in Memphis!
>
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