self amalg failure

Five years ago we installed a system that included external wall-
mounted tap-off units. The connectors were protected with self
amalgamating tape. Today, to my great chagrin, I found that the tape
on south-facing walls had disintegrated leaving the connectors
unprotected. I've never seen this before. Anyone else?

Bill

" wrote in message
...
Five years ago we installed a system that included external wall-
mounted tap-off units. The connectors were protected with self
amalgamating tape. Today, to my great chagrin, I found that the tape
on south-facing walls had disintegrated leaving the connectors
unprotected. I've never seen this before. Anyone else?


I have recently removed an antenna that has been on a chimney stack for 25
years and the SAG is in perfect condition as indeed is the silver plated "N"
connector it covers. I can't believe that it can have been more exposed than
yours were. Perhaps the SAG was from a defective batch.

Peter Crosland

On Aug 24, 10:19*pm, "Peter Crosland" wrote:
" wrote in message

...

Five years ago we installed a system that included external wall-
mounted tap-off units. The connectors were protected with self
amalgamating tape. Today, to my great chagrin, I found that the tape
on south-facing walls had disintegrated leaving the connectors
unprotected. I've never seen this before. Anyone else?

I have recently removed an antenna that has been on a chimney stack for 25
years and the SAG is in perfect condition as indeed is the silver plated "N"
connector it covers. I can't believe that it can have been more exposed than
yours were. Perhaps the SAG was from a defective batch.

Peter Crosland

Oh, I'm sure it was. Our background here is that we have many
experiences similar to yours. That's why this came as such a surprise.
I was just wondering if others have have similar unexpected failures.
Bill

On Tue, 24 Aug 2010 12:39:00 -0700 (PDT), wrote:

Five years ago we installed a system that included external wall-
mounted tap-off units. The connectors were protected with self
amalgamating tape. Today, to my great chagrin, I found that the tape
on south-facing walls had disintegrated leaving the connectors
unprotected. I've never seen this before. Anyone else?

Bill

Was it a different brand from usual or a one-off failure?

For this purpose and for a standby for other jobs, I like the look of
Everbuild's SOS Repair Tape

http://www.everbuild.co.uk/products/...-Trade-Tapes/2
--
Peter.
The gods will stay away
whilst religions hold sway

On Aug 25, 9:14*am, PeterC wrote:
On Tue, 24 Aug 2010 12:39:00 -0700 (PDT), wrote:
Five years ago we installed a system that included external wall-
mounted tap-off units. The connectors were protected with self
amalgamating tape. Today, to my great chagrin, I found that the tape
on south-facing walls had disintegrated leaving the connectors
unprotected. I've never seen this before. Anyone else?

Bill

Was it a different brand from usual or a one-off failure?
Annoyingly, I can't remember. Another problem is, we buy it from
several sources.

Bill

wrote:
On Aug 25, 9:14 am, PeterC wrote:
On Tue, 24 Aug 2010 12:39:00 -0700 (PDT), wrote:
Five years ago we installed a system that included external wall-
mounted tap-off units. The connectors were protected with self
amalgamating tape. Today, to my great chagrin, I found that the tape
on south-facing walls had disintegrated leaving the connectors
unprotected. I've never seen this before. Anyone else?
Bill
Was it a different brand from usual or a one-off failure?
Annoyingly, I can't remember. Another problem is, we buy it from
several sources.

Bill
Probably a special offer in the Daily Mail

In article
s.com, writes

I found that the tape
on south-facing walls had disintegrated leaving the connectors
unprotected

Maybe it wasn't UV-safe.

Considered using heatshrink tubing instead? Only thing is, you need to
get heat to the joint somehow.

--
(\__/)
(='.'=)
(")_(")

In message , Mike Tomlinson
writes
In article
s.com, writes

I found that the tape
on south-facing walls had disintegrated leaving the connectors
unprotected

Maybe it wasn't UV-safe.

Considered using heatshrink tubing instead? Only thing is, you need to
get heat to the joint somehow.

Snap-N-Seal F-connectors are pretty well watertight (if they can be used
on that type of cable). Unless the connections are going to get
seriously wet, a good dose of WD40 before and after assembly should
ensure no long-term water ingress or corrosion.

The cable TV industry also sometimes uses short, stubby, soft rubber
sleeves ("F-Port Sealing Boots", maybe 10 - 12mm long) which are first
pushed over the female connector on the body of the tap, then the male
on the cable is screwed on, and the connector forces its way into and
under the rubber. The ones I've seen were grey, and I don't know how UV
resistant they are. I can't remember who supplies them.
--
Ian

"Mike Tomlinson" wrote in message ...


Considered using heatshrink tubing instead? Only thing is, you need to
get heat to the joint somehow.


Is that definitely UV safe?

STeveT


--
(\__/)
(='.'=)
(")_(")

In article ,
Mike Tomlinson wrote:
In article
s.com, writes

I found that the tape
on south-facing walls had disintegrated leaving the connectors
unprotected

Maybe it wasn't UV-safe.

Considered using heatshrink tubing instead? Only thing is, you need to
get heat to the joint somehow.

you could always use a "Cordless Hot Air Gun" aka a "blowlamp".

--
From KT24

Using a RISC OS computer running v5.16