[TowerTalk] Aluminum longevity?

[Bob Shauger]

I would assume that aluminum corrosion only becomes a real issue in a salt 
air environment location.

Bob W7KD

----- Original Message ----- 
From: "KT2Q" <dxdx at optonline.net>
To: "TowerTalk" <towertalk at contesting.com>
Sent: Sunday, September 11, 2005 11:13 PM
Subject: [TowerTalk] Aluminum longevity?


> All:
>
> Before I go to the trouble of coating the exterior of my new M2 Yagi, is
> aluminum corrosion a real problem with the alloys used today?
>
> Shouldn't the natural oxydation protect the surface of the antenna and 
> stop
> corrosion? What about the inside of the elements and boom? If surface
> corrosion is a real problem, what's the sense of protecting the outside if
> the inside is left bare?
>
> I have a F12 antenna that's been up for 6 years. The aluminum is certainly
> dull, but I don't see any corrosion. The clamps are rusted to hell, but 
> the
> rest is in fine shape.
>
> So, what's the average life expectancy of aluminum before corrosion takes
> it's toll and the antenna needs replacing?
>
> 73, Tony KT2Q
>
>
>
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