In a message dated 11/6/03 8:32:44 AM Pacific Standard Time,
> I have a serious problem with a Cushcraft C8 antenna. There seems to be a
> dark non-conductive oxide that formes between some of the aluminum
> which resultes in the antenna not working on some of the bands.
> My question is , does anyone know of a protective conductive "grease"
> will prevent this oxidation from forming ?
> And of course, where can I get it ?
Yep, that's aluminum oxide. Any aluminum joint should have an
anti-oxidant on it (also copper joints). Home Depot carries NoAlOx (No Aluminum
There are about a dozen or so of anti-oxidant recipes such as Penetrox,
Ox-Gard, etc. Antenna manufacturers have some of their own like the paste from
M2, Butter It's Not from Butternut, Mosley has some, etc.
There are two components of an anti-oxidant - conductive particles and a
vehicle material. The anti-oxidant is not conductive but the particles pierce
the oxidized layer when it's under compression.
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