Re: [TowerTalk] non conductive sealant

["Tower (K8RI)" <tower@rogerhalstead.com>]

Julio Peralta wrote:

> I've been using a product called STUFF it's a Dielectric water proofing
> filler. You flood the inner parts of the connector and the threads. When you
> screw the connector on the STUFF will ooze out. Wipe it off and apply tape
> and what ever else you want. It does not harder so can be reused. It works
> by filling all the cracks and crevices with the STUFF so water can't get in.
>
>  
I use DC-4 or DC-5 compound for this.  As it was originally designed to 
seal spark plug connectors on B-17s at high altitude it is outstanding 
for this application.

A word of caution though,  When ever "flooding" a connector with any 
dielectric grease, be careful about getting any on the outside.  Clean 
the surface well or tape may not stick and the liquid tapes may not even 
stay on that surface long enough to cure.

Do not flood both ends of a piece of coax.  It will tend to "breathe" 
with temperature changes and draw in moisture than will not be able to 
get out. Coax cables with large internal voids (such as 9913) are 
particularly susceptible to this.
//
If the outside can be well sealed, I've found it works well to not flood 
the insides with the exception of the upper most connector in the run.

Roger Halstead (K8RI ARRL Life Member)
Worlds Oldest Debonair (N833R S# CD-2)
www.rogerhalstead.com


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