[TowerTalk] Galvanizing 4130?

[Scott Bullock]

Mike, I just put up a 24' piece of this, it was also black and covered with
oil when it was picked up. I had spoken to a galvanizing shop about this,
they had no problem doing it, they pickle it then dip it. Unfortunately it
was cost prohibitive for me as funds were running low, so I cleaned it with
soap and water first to take the heavy oil off, then cleaned it about 5
times with acetone, sanded it with rough grit sandpaper, then with 150
grit, cleaned it 2 more times with acetone, then brushed on a good coat of
cold galvanizing. It stuck very well, as hard as a rock by the time it was
put up last weekend. May eventually rust, but by then, I'll be a
millionaire and have 10 towers. :)

73,
Scott
KA1CLX





At 09:50 PM 10/23/97 +0100, you wrote:
>Hi all!  I have a "normalized" 4130 2"O.D. mast that I think I want to
>galvanize.  It has a black colored outside surface condition as supplied
>from the metal dealer.  I am wondering if there are any tricks or
>unusual circumstances that might be involved in galvanizing this alloy.
>The local galvanizer is used to mild steels like A36 and is doing some
>research on the feasibility of doing 4130.
>
>Can any "towertalkians" shed any light on this??
>
>Thanks in advance,
>
>Mike - W8MM - EM79sd
>
>
>--
>FAQ on WWW:               http://www.contesting.com/towertalkfaq.html
>Submissions:              towertalk@contesting.com
>Administrative requests:  towertalk-REQUEST@contesting.com
>Problems:                 owner-towertalk@contesting.com
>Search:                   http://www.contesting.com/km9p/search
>
>

--
FAQ on WWW:               http://www.contesting.com/towertalkfaq.html
Submissions:              towertalk@contesting.com
Administrative requests:  towertalk-REQUEST@contesting.com
Problems:                 owner-towertalk@contesting.com
Search:                   http://www.contesting.com/km9p/search