I didn't want to bore the group with all the details but the first thing is
the surface prepare work. I ran a wire wheel down the entire length, a
double coat of primer and a double coat of paint. Since we had close to a
gal of each left over we cap the one end and poured both in turn down the
center. It dried real quick and it now 15 years later and both it and the
switchgear building that this paint was used on still look like the day it
was painted. On my big Rohn SSMW I was missing 3 internal bracket and I made
them primed them with good old Rustoleum Professional Primer and that was 5
years ago and it didn't get painted and it looks good. My Grandfather 50
years ago hammered into my head paint will not stick to anything unless you
take time to prepare the surface. It was true then and it still true. The
top A-frame reducer and the steel ladder's that I built and was welded was
hot-dipped Gav. At a cost of $1000.00. It look good too, but if I did it
today I would paint them with Inron which is a whole lot cheaper.
As far as which is better is a $$$ decision. No doubt in my mine Zinc is
always the way to go. You have to fine a buddy with a long boat trailer and
haul to the plant and pick it up. Cost off the top ,of my head and this is
an outdated guess anywhere between .20-.30 per lbs to dip. Have fun and the
best of good luck however you go. 73 Gene K2QWD
-----Original Message-----
From: towertalk-bounces@contesting.com
[mailto:towertalk-bounces@contesting.com] On Behalf Of EZ Rhino
Sent: Friday, January 13, 2012 10:42 PM
To: TowerTalk construction topics.
Subject: Re: [TowerTalk] 1026 DOM mast material
There is plenty of paint on the market that can hold up fine to the weather;
the concern I have is scratching the paint off in spots during installation,
and particularly around the clamps for your antenna(s). You'll always have
some rust around those areas, and eventually it will turn into serious rust,
just depends what kind of climate you're in. I suppose it could be touched
up after install, but you'll never be as good as dipping it in the zinc
bath. Hey Gene, did you paint the inside as well? Cap the top?
Chris
KF7P
On Jan 13, 2012, at 18:57 , Eugene Jensen wrote:
I painted a stick of it 15.00 years ago or so with a 2 part epoxy paint that
we used to paint HV outdoor switchgear with. It still hasn't rusted after
all these years and I used for the driveshaft on my current tower. DuPont
makes a paint called Imron that I understand to be in the same family.
Haul it over to a Auto Body shop and they be glad to spray it as they mix 2
part paint all the time. Good luck Gene K2QWD
-----Original Message-----
From: towertalk-bounces@contesting.com
[mailto:towertalk-bounces@contesting.com] On Behalf Of Steve Lane
Sent: Friday, January 13, 2012 6:25 PM
To: towertalk@contesting.com
Subject: [TowerTalk] 1026 DOM mast material
I am looking for 20'-23' or so of 2" diameter .250" wall mast. I found a
local supplier that can sell me it at 14.20 per foot which works out to 284
dollars. That's a delivered price. The only thing is, it is not galvanized.
What are the thoughts on this? Will this material rust fast enough that it
may fall apart in 5-10 years? I know it won't be shiny...
Steve
K9SL
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