Also not true. A good galvanizer will sandblast the paint and charge a bit
extra for the process.
73, Keith NM5G
-----Original Message-----
From: towertalk-bounces@contesting.com
[mailto:towertalk-bounces@contesting.com] On Behalf Of Dubovsky, George
Sent: Monday, May 01, 2006 11:35 AM
To: Jim Jarvis; towertalk@contesting.com
Subject: Re: [TowerTalk] why not regalvanize?
> -----Original Message-----
> From: towertalk-bounces@contesting.com [mailto:towertalk-
> bounces@contesting.com] On Behalf Of Jim Jarvis
> Sent: Monday, May 01, 2006 12:19 PM
> To: towertalk@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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