[time-nuts] Connectors glue lined heatshrink

[Robert Atkinson]

Hi Dave,
Not quite, they do use irradiation crosslinking to make the heatshrink tube, but the hotmelt adhesive is a completly separate layer. They do different combinations of tube and glue for different applications. Really cool are the pre-forms that look like a parallel tube but shrink down into two sises with a smooth transition. The mold the final shape and then streach it (hot) into a parallel tube. They also do multiple entry versions. Raychem are leaders in this. They also do shrink metal parts.

Robert G8RPI.



________________________________
 From: DaveH <info at blackmountainforge.com>
To: nerd at verizon.net; 'Discussion of precise time and frequency measurement' <time-nuts at febo.com> 
Sent: Sunday, 14 April 2013, 3:08
Subject: Re: [time-nuts] Connectors
 

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.
> >
> >
> 
> _______________________________________________
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to 
> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.

_______________________________________________
time-nuts mailing list -- time-nuts at febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.