OT : old US Telephone hybrid ('Network' block)

[Tony Duell]

> 
> On 29 Mar 2011 at 21:36, Tony Duell wrote:
> 
> > Has anyone ever repaired such a Network block and knows how to shift
> > this stuff?
> 
> No, but it sounds like plain old pitch.  It's still used (I get brass 

I forgot to mention the obvious physicl property -- the colour. It's 
almost transparent (slightly milky/translucent). Pitch is surely opaque 
black.

Also, it does not disolve in any common solvents (so far I've tried 
propan-2-ol, metylated spirits, petrol, white spirt and a couple of 
different paint thinners). 

It is very sticky at room temperature. it's not really hard. 

-tony