Time to put some of my current heatshrink on an old connector and throw
it in the freezer, thanks for the tip!!!
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 6/4/20 12:35 AM, Edward R Cole wrote:
My two cents worth:
Professionally, I used a layer of Scotch-70 self-fusing tape covered by
two layers of Scoth-33+ black electric tape. This was on coax cable
connectors on small vessels that were in salt-water exposure. Removing
5-years afterward, connectors were still bright,dry, and looking like new.
Scotch-70 is expensive (I paid $30 per roll over ten years ago for it).
But when you got guys on board a 26-foot boat in the North Pacific with
very high seas (like 30-foot) you want their Marine Radio to work.
At home, I use heat shrink with two layers of Scotch-33+ fairly
reliably. If things are too close to wrap with tape then a layer of
Scotch-Kote seals heat shrink, thoroughly.
I don't use sticky, messy stuff like Coax Seal. Scotch-70 molds into a
seamless covering and slits easily with a razor knife.
Some large coax connectors are supplied with heat shrink that has a
melted inner "goo" which is very good sealant. I've found removal is
not messy so apparently the "goo" cures in some manner. Pretty sure you
can buy it at commercial electrical suppliers (but probably in 4-foot
chunks which will cost you). I buy my ordinary heat shrink and tywraps
(Thomas & Betts) from a local commercial electrical supply house.
When temperatures dip to -30F the cheap stuff gets brittle and breaks.
That's not when I want to climb a tower.
73, Ed - KL7UW
http://www.kl7uw.com
Dubus-NA Business mail:
[email protected]
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