[time-nuts] Shrink tubing

Didier shalimr9 at gmail.com
Sun Apr 14 07:15:21 EDT 2013


Raychem invented that process 50 years ago with polyolefin. Now everybody makes it with all kinds of materials. If it had been invented by Disney, they would have copyrighted it instead of patented it and nobody else would make it :)
Didier


DaveH <info at blackmountainforge.com> wrote:

>Kind of a cool technology -- they bombard the outside of the tube with
>an
>electron beam that cross-links the polymer but leaves the inside
>untouched.
>The outside becomes hard but still shrinks.  The inside just melts into
>a
>goo when heated.
>
>Dave 
>
>> -----Original Message-----
>> From: time-nuts-bounces at febo.com 
>> [mailto:time-nuts-bounces at febo.com] On Behalf Of Peter Gottlieb
>> Sent: Saturday, April 13, 2013 15:24
>> To: time-nuts at febo.com
>> Subject: Re: [time-nuts] Connectors
>> 
>> Think of heat shrink with a layer of hot melt glue on the 
>> inside. Such stuff is 
>> used in most outdoor and especially underground utility 
>> wiring.  Shrink the 
>> tubing and it melts the glue and the contracting tubing 
>> forces the glue into 
>> every crevice making a great waterproof splice.
>> 
>> 
>> On 4/13/2013 5:07 PM, Hal Murray wrote:
>> >> Can someone in the know clarify this?
>> > I'm not in the know.
>> >
>> > Several years ago, I found a short chunk of coax that the 
>> cable TV guys had
>> > left on the ground.  It included a piece of heavy wall 
>> shrink tubing.  There
>> > was a layer of sticky goop between the coax and the shrink tubing.
>> >
>> >
>> 
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-- 
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