Patrick,
Sounds like a good product. But interface conductivity is an important
factor for our purposes which may not be a primary consideration in a
marine product designed mainly for non-electrical applications. What's
your experience with TefGel in this regard?
73,
John K9WT
On 8/17/2025 11:18 AM, W7TMT - Patrick wrote:
A product that is the mainstay in the marine world for preventing dissimilar
corrosion and binding is TefGel. On sailboats the masts are mostly aluminum and
all the hardware attached is stainless steel and affixed with stainless
fasteners. The aluminum to SS corrosion issue is well known. Here in the
saltwater environment the parts live 24/7 in a saltwater fog.
I just removed the base of a winch that I last installed 12 years ago. Its
location is such that in heavy weather it has on many occasions been washed
with saltwater coming over the bow. It came apart effortlessly with no more
torque required than if it had been stored in a garage for that time. I also
saw this compound used in the aerospace/defense industry where I worked for 35
years. In addition to applications that are certain to see saltwater exposure,
I use it on all SS bolt/nuts to prevent galling.
Might be worth a look to see if it meets your needs. It is a mainstay for
dissimilar metal protection in the marine world. Not cheap but amazing
effective.
https://ultratef-gel.com/
73
Patrick, W7TMT
-----Original Message-----
From: TowerTalk <towertalk-bounces@contesting.com> On Behalf Of Steve Harrison
Sent: Saturday, August 16, 2025 07:34
To: towertalk@contesting.com
Subject: [TowerTalk] Aluminum Boom Lubricant: Yes or Nope?
What is the collective Wisdom concerning the use of an aluminum-to-aluminum
lubricant (such as Penetrox) between boom pieces, one of which is swaged? I am
reassembling several older monobanders but using OWA dimensions here in the
desert (no salt water corrosion). We have nearly-continuous mild-to-heavy
winds, 10 - 15 to 45 - 60 mph, nearly year round, so the boom pieces must be
solidly bolted together; yet, I'd like the option of being able to take them
apart again at some time in the future.
TNX,
Steve K0XP
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