[time-nuts] Connectors

[paul swed]

Rick
It is a very rare time I get to answer you.
The plastic tape holds the rubber end initially, adds another layer of wx,
and in reality is sacrificial to UV over the years. First the liquid rubber
gives up. Then the plastic. Thats a big clue when it gets ratty. Time to
change. Fact is even at that point it will hold for a very long time beyond
that point. Each layer helps to hold things together.

My experience was in the Navy aboard ship. But I have used the method for
many years on the tower for all of the heliax and all other connections.

What I would love to know is what makes the liquid rubber, liquid. It
evaporates off over time (And it seems no matter how hard you try to seal
the container) and that always kills off the can of scotchkote. I will bet
I waste 1/2 a can that way.
Regards
Paul
WB8TSL


On Sat, Apr 13, 2013 at 2:56 PM, Richard (Rick) Karlquist <
richard at karlquist.com> wrote:

>
> OK, so we seem to have:
>
> 1)  Scotch 130 rubber tape
> 2)  Scotch 33 electrical tape
> 3)  Scotchkote
>
> in that order.
>
> So the rubber tape waterproofs
> the connection and the scotch kote
> protects it from UV, so what does
> the electrical tape do?
>
> Or maybe, the electrical tape does
> the waterproofing and the rubber tape
> just keeps goo off the connector.  But
> of course, that can be done with the well
> known technique of winding the connector
> with electrical tape adhesive side out.
>
> Do we know that the rubber tape is not UV
> proof?
>
> Or none of the above.
>
> Can someone in the know clarify this?
>
> Thanks,
>
> Rick
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