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Re: [TowerTalk] sealing goop

To: "'jimlux'" <>
Subject: Re: [TowerTalk] sealing goop
From: "Roger N0VR" <>
Date: Fri, 1 Aug 2008 19:19:37 -0600
List-post: <">>
I Googled this as you suggested and it appears to be a really nice product. 

I noticed that the minimum cable diameters for the different products in the
series match the most common feedline diameters that we use, including
hardline. Very nice!

Thanks for the tip Jim.

-----Original Message-----
From: jimlux [] 
Sent: Friday, August 01, 2008 7:01 PM
To: Roger N0VR
Subject: Re: [TowerTalk] sealing goop

I'm pretty sure it's been described here before. The ones I've seen are 
made by 3M, but I can't recall what it's called specifically.

I just looked on their website and there's
3MT Wraparound Heat Shrink Cable Repair HDCW sleeve

But, I also found something that looks even niftier (and needs no tools, 

It's the 3M Silicone Rubber Cold Shrink Connector Insulators 8440 
Series.  It seems to be a sort of prestreched tube with a core. You 
slide it over what you want to seal, and pull the core out (which peels 
away like a grease pencil wrapper) and the tubing shrinks down over the 

google for the name of the stuff, and you can find the datasheet on 3M's 


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