The hot-dip galvanizing process starts with a degreasing tank, rinse, then acid
dip to remove rust, mill scale, old galvanizing - and aluminum rivets! Next,
another rinse, and then the molten zinc tank.
The acid process can handle light to moderate rust, but heavy rust should be
mechanically removed first (sand-blasting, scraping, brushing). Paint is a
no-no.
73,
geo - n4ua
-----Original Message-----
From: towertalk-bounces@contesting.com
[mailto:towertalk-bounces@contesting.com] On Behalf Of Dave Harmon
Sent: Sunday, July 26, 2009 11:12 AM
To: n9lah@comcast.net; 'Robert West'; towertalk@contesting.com
Subject: Re: [TowerTalk] Hot Dip Galvanizing
That might not be just a story.....
A local friend of mine had a tower re-galvanized and the rivets corroded.
In investigating this he discovered that the rivets are aluminum.
Not really believing him I checked my rivets with a magnet.....uhhh, guess
what?
Regards
Dave Harmon
K6XYZ[at]sbcglobal[dot]net
Sperry, Ok.
-----Original Message-----
From: towertalk-bounces@contesting.com
[mailto:towertalk-bounces@contesting.com] On Behalf Of n9lah@comcast.net
Sent: Saturday, July 25, 2009 11:43 PM
To: Robert West
Cc: towertalk@contesting.com
Subject: Re: [TowerTalk] Hot Dip Galvanizing
What type of freestanding tower is it? I seem to remember a story about a
ham who sent an HBX tower to the galvanizer and when it hit the tank the
rivets all melted. Maybe just a good story, but something to think about.
Phil
N9LAH
----- Original Message -----
From: "Robert West" <robert.west@just-micro.com>
To: towertalk@contesting.com
Sent: Saturday, July 25, 2009 9:05:03 AM GMT -06:00 US/Canada Central
Subject: [TowerTalk] Hot Dip Galvanizing
I'm cleaning up an old 65' freestanding tower and would like to get the
thing galvanized. I live in central Ohio and have looked up a few places
that advertise the service but haven't called any of them yet. What price
range should I be looking at and how clean does this have to be before they
can process it? Anyone have one to recommend in Ohio that they have used?
I was putting off calling until I had some sort of idea of what was a good
price and what was a rip-off.
Thanks!
Bob-
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