Jeff,
Look for an outfit that does hot dip galvanizing in your locale and have it
done....might cost you $50-$100 bucks but will be rust free for your
lifetime and much more eye appealing and neater to handle. Don't forget, the
rust will eventually wash down the to the rotor, rotor plate and the tower
legs too! Ugh! The self applied "Cold Galvanizing" has a lifespan somewhat
better than paint, if the surface is chemically clean before applying, but
it still is nowhere near as durable as a hot dip galvanizing job and will
still allow rust to occur on the inside of the mast, causing similiar
staining problems to everything below! The cold galv., when scratched,
allows rust to form whereas the hot dip zinc job, self heals scratches too!
I've "been there" both ways and would not ever put up a mast that isn't hot
dip galvanized again!
73, and good luck....You might check with "Texas Towers" as they carry a
good supply of masts in various lengths and wall thicknesses and they are
all hot dipped....
IIX Equipment Ltd., near Chicago,
http://www5.interaccess.com/iixeqpt/ also sells a hot dipped "ladder mast",
which comes in three telescopic sections and has integral climbing steps.
Check his web site above for additional details! It is reasonably priced and
much more
convenient to work with. I've never heard of one bending and I know of lots
of
guys with multiple big antennaes on it are out there. They've been around
since
the mid to late 70's ! It may be a better solution to your needs and
something you may not have been aware of.
Again....Good luck in your endeavors. -=Rog-K9RB=-
-----Original Message-----
From: Jeffrey R Davis <jrdavis@crnotes.collins.rockwell.com>
To: towertalk@contesting.com <towertalk@contesting.com>
Cc: Richard E Heinrich <reheinri@crnotes.collins.rockwell.com>
To: <towertalk@contesting.com>
Date: Tuesday, May 04, 1999 11:17 AM
Subject: [TowerTalk] Galvanized Masts - Necessary?
>
>
>
>Hi TTians,
>
>I'm facing a decision between two types of steel tubing for use as a mast.
>My calculations indicate
>that either would be sufficiently strong for my application, the issues
>boil down to cost, availability, and maintainability.
>
>Here's the matrix:
>
> Choice 1 Choice 2
>Strength (psi) 87,000 110,000
>Galvanized yes no
>Delivery > 1 month Immediate
>Cost (delivered) $439 $294
>
>
>>From my point of view, Choice 2 is preferable except that it's not
>galvanized. My questions:
>
>1. Is rust protection necessary/desirable for high carbon steel?
>
>2. If so, are there good, low maintenance alternatives to galvanizing that
> can be applied at home?
>
>Thanks in advance,
>
>Jeff - N0DY
>
>
>
>--
>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.htm
>
--
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.htm
|