flexible heat shrink tubing

[[email protected]]

Hi!
I seem to recall a kind of tubing that looked like it was made of foam
rubber, and it stayed very flexible after the shrinking.
Has my drinking finally caught up with me?
Anyone have a name or part number?
TIA

 

[Rich Grise]

I seem to recall a kind of tubing that looked like it was made of foam
rubber, and it stayed very flexible after the shrinking. Has my drinking
finally caught up with me? Anyone have a name or part number?

I've seen a form of "wire nut" made of heat-shrink, with a lining of a
relatively low-melt thermoplastic, which would melt (or at least soften)
as you shrunk the tubing and ooze out, then when it set the joint was
water-tight. The ones I saw had one end pre-sealed, so they were used like
wire-nuts, or to cap off dead-end wires.

But that doesn't sound like what you're looking for - I've noticed that as
heat-shrink (at least the types I've used) get very pliable when they
start shrinking - the cross-links are relaxing or something; but you
don't have much working time, because it shrinks so abruptly.

Sorry I couldn't be more helpful. )-;

Good Luck!
Rich

 

[Ross Herbert]

On Sat, 25 Oct 2008 09:15:44 -0700 (PDT), [email protected] wrote:

:Hi!
:I seem to recall a kind of tubing that looked like it was made of foam
:rubber, and it stayed very flexible after the shrinking.
:Has my drinking finally caught up with me?
:Anyone have a name or part number?
:TIA


No heatshrink tubing that I recall was ever made of "foam rubber" or anything
like it. Heatshrink tubing is invariably a cross-linked polyolefin made with
various formulations and modifiers.

If you want the most flexible (after shrinking/cooling) then I would suggest a
thin wall or ultra-thin wall tubing such as the RLT or RUC types shown here.
http://www.radpol.com.pl/english/produkty/term01.html