Rod, I've been using NOALOX for 10 years on several beams and for a
couple years on 6 Yagis, ground wires/rods, tower ground kit
connections, copper/aluminum interfaces, etc etc, without problems.
In fact, NOALOX is provided with their parts kits by HiGain, Andrew and
others.
Both the 1993 and 1994 ARRL Handbook, page 33-5 (both editions),
recommend NOALOX (as well as Penetrox and Dow Corning Molykote 41).
Please provide a reference for your comments that NOALOX is not suitable
for aluminum/aluminum interfaces and causes the results you have stated.
Many of us have been using this product for many years, relying on the
references above, as well as anecdotal evidence provided by others and
have never been told of the problems you mention. I will not change my
practices based upon one Internet email comment. Please provide the
references for you hypothesis.
Bill, N3RR
Rod Fitz-Randolph wrote:
>
> >I recently asked Steve where to find a corrosion inhibitor for assembling
> >my R7000. He said that KLM had some good stuff, but that I could use
> >anything I found as long as it is designed for Aluminum.
> >
> >Turns out, Home Depot carries Ox-Gard and Noalox. Ox-Gard comes in a tiny
> >tube (and was out of stock), but I found a 8 oz jar of Noalox for about
> >$8. That should last me a while.
> >
> >Just thought I'd pass this tip along.
> >
> >
> >
> >Bill Coleman, AA4LR Mail: aa4lr@radio.org
>
> Bill, I would not use Noalox or Ox-Gard. The preferred stuff is Penetrox-A.
> It is petroleum based (to prevent moisture and oxygen from causing corrosion)
> but also has a very heavy concentration of zinc particles suspended in the
> petroleum jelly that, when crunched down on, makes an excellent electrical
> AND rf connection. I have used it for years when assembling antennas,
> clamping
> connectors to tower legs for grounds, etc. I swear by it. Noalox on the
> other hand, if my memory serves me right (and I still have some in the garage)
> is simply a greenish petroleum jelly without the heavy concentration of zinc
> particles. The danger there would be in creating a bad AC/DX/RF connection
> by actually insulating the two metals from each other
>
> Roderick M. Fitz-Randolph, W5HVV
> 79 Highland Hills Cove,
> Jackson, TN 38305
> (901) 661-9278 (Home Phone - after 10 AM & before 9 PM)
> (901) 664-7539 (FAX Number - any time of day)
>
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