In article ,
N_Cook wrote:

But heatshrink leaves a capilliary path.
If there was a way of making sure the conductor stayed reasonably axial then
a few inch length of hotmelt glue around the conductor and then
remelted/compressed in the process of contracting heatshrink sleeving around
that, would probably be ok. After the first few inches bond to normal
sleeving.

That same effect can be achieved with what's called "flooded" or
"dual wall" heatshrink tubing. It consists of two layers, the outer
being the usual sort of heatshrink material and the inner being a
near-equivalent to hot-melt glue.

Put some of this around the conductor or joint, apply heat, the inner
layer melts, the outer layer shrinks and forces the molten goop into a
bond with the conductor, and (frequently) a bit of the excess goop
expresses out of the end to let you know that it's on the job and
working. Allow to cool, and you're good to go.

Flooded heat-shrink is rather more expensive than standard single-wall
but is well worth the cost if you're installing wires which will be
exposed to moisture.

--
Dave Platt AE6EO
Friends of Jade Warrior home page: http://www.radagast.org/jade-warrior
I do _not_ wish to receive unsolicited commercial email, and I will
boycott any company which has the gall to send me such ads!