Re: [isp-wireless] Towers in salt-water environments - painting with gel coat?

[Gary Garrett <ggarrett@...>]

No it is called Cathodic Protection.  Do a Google search on this term.
Basically you put a DC current into the steel to give it extra electrons 
to give up instead of coming from the metal.

richard.sterne wrote:

> i think the DC system you refered to is called a passive anode
> hope that helps you
>
> richard
>
>  
> > Hi all,
> >
> > We've got several towers that are in salt-water environments (Caribbean
> > coastal and island installations).  Predictably, we've not gotten a long
> > life out of steel pipe towers, even when galvanized pipe and anticorrosive
> > paint is used.
> >
> > We are considering using marine gelcoat epoxy resins, tinted red and
> > white, as an alternative to anticorrosive pain.
> >
> > Has anyone else tried this technique, and if so, what results did you
> > have?  Is the extra expense worthwhile?
> >
> > I've also heard, but have had no luck finding, DC electric systems that
> > turn the tower into a giant anode to resist the oxidation of the metal.
> > Pardon me if I've gotten my electrochemical terms mixed up here.
> >
> > -Andrew
> > Utila, Honduras
> >
> >
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** ISPCON Spring 2005 - Baltimore Convention Center **
    ** The ISP and WISP event - http://www.ispcon.com **
    ** Exhibit Hall Pass FREE until Feb 11 * Sign up today,
                    use customer code ISP-WIR**





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