[TowerTalk] why not regalvanize?

[Dubovsky, George]

> -----Original Message-----
> From: towertalk-bounces at contesting.com [mailto:towertalk-
> bounces at contesting.com] On Behalf Of Jim Jarvis
> Sent: Monday, May 01, 2006 12:19 PM
> To: towertalk at contesting.com
> Subject: [TowerTalk] why not regalvanize?
> 
> 
> In addition, most galvanizers won't touch a rusted
> structure.  You can't zinc plate over iron oxide.
> So if you see internal rust, it's probably a lost cause.
> 
> n2ea
> 

Not true at all. The sequential baths at the galvanizer's plant include
an acid dip that takes off all rust and active metals like previous zinc
plating. Of course, if you leave it in long enough, it would also attack
the base steel. This is why galvanizers won't take anything painted -
they don't have anything in the process line that will strip paint. But
rust or mill scale? Gone...

73,

geo - n4ua

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