On Sat, 01 Jul 2006 14:25:46 GMT, "Dorothy Bradbury"
wrote:

Surely if it relies on glue to hold it together, it can't be
"self-amalgamating" ?

Of course it can - the glue is solvent or plasticiser loaded
to soften the thin PVC so it cold welds into a solid mass.
The self-amalgamating PVC tape ends up gluing itself in
such a mess that you can't unpeal the roll after a few years.

I don't think I have come across that one.

I use the RS version which has a layer of silicone (?) release paper
seperating the layers.


The rubber etc self-amalgamating stuff you cite is far better.

I find if it's installed clean straight from the roll & properly
tensioned at the outset. It does indeed self amalgamate and after a
few years cannot be delaminated. Someone skilled in it's application
can make a reasonably good facsimile of a tapered strain relief
grommet with it, a double ended one housing a repair, even. Repairs to
"Henley Solon" soldering iron leads spring to mind from the dim and
distant past.

DG