[TowerTalk] Al-to-Al

[Tim Duffy]

I have had conversations with W3LPL and others (mechanical engineers) about
that comment - and we all agree that we have never had a problem with SS-30.
The AL to AL joints are clean even after 20 plus years - perfect. I think
SS-30 might be a problem with dissimilar metals or highly corrosive
environments.

I can also tell you that major cell phone carriers (one of which I worked at
in the past) - are all using SS-30 for their site builds. They stopped using
Penetrox long ago.

If SS-30 wasn't the best - I wouldn't have used it on the 50 plus antennas
here at K3LR.

73
Tim K3LR

-----Original Message-----
From: TowerTalk [mailto:towertalk-bounces at contesting.com] On Behalf Of
john at kk9a.com
Sent: Tuesday, February 13, 2018 9:17 PM
To: towertalk at contesting.com
Subject: Re: [TowerTalk] Al-to-Al

Great tip, Tim. I have seen dry Penetrox on old antennas but I assume that
it does not affect the joint's conductivity. Jet Lube SS-30 has excellent
Amazon reviews. I wonder how the following note on the manufacture's website
relates to aluminum tubing antennas, especially those in corrosive
environments: "Not intended for use with aluminum where galvanic corrosion
could be a significant issue".

John KK9A


To:	"'Bob K6UJ'" <k6uj at pacbell.net>, "'Kim Elmore'"
<cw_de_n5op at sbcglobal.net>,	<towertalk at contesting.com>
Subject:	Re: [TowerTalk] Al-to-Al
From:	"Tim Duffy" <k3lr at k3lr.com>
Reply-to:	k3lr at k3lr.com
Date:	Tue, 13 Feb 2018 19:56:45 -0500

I used Penetrox for years - noticed that after 10 years or more that the
Penetrox would dry out and turn to a crusty dust. I mentioned that to W3LPL.
Frank said try Jet Lube SS-30 - which is what he uses at his mega station
for all of his antennas.

I have been sold on Jet Lube SS-30 ever since. After 25 years here at K3LR -
the Jet Lube SS-30 comes apart and is clean and offers a great low loss
connection. I use it everywhere hardware and connections are involved (even
in the shack) - as does W3LPL. Do not worry that this is copper based paste
- it works SUPER for Al to Al.

https://www.dxengineering.com/parts/jtl-12555

73
Tim K3LR



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