Sam Goldwasser wrote in
:

Lostgallifreyan writes:

Sam Goldwasser wrote in
:

This type is usually dark gray and soft - about the consistency of a
pencil eraser, maybe a bit tougher. It can be removed laboriously with
knives, picks, and elbow grease. But the question is whether there is
some easier way to do this that would leave the underlying components
undamaged. This stuff is used in a variety of places including PCBs and
laser tube assemblies. Both of these are of interest to me. Modest
heat has no effect including immersing in boiling water - it's not
hot-melt glue.


I think you need a tin of grey rubbery stuff remover.

HeHeHe... Do you charge BIG BUCKs for that advice, huh?

Oh yeah, I should, given what anything seems to cost the moment I need it...

Here's some for free though. Try snagging a bit and burning it, melting it,
putting it in chemicals, and comparing to some knowns. If it's silicone
you're SOL but a lot of other stuff might be attacked while the rest of the
parts sit looking as if they enjoy it because a lot of PCB washes are strong
stuff and most parts are designed to resist a lot. If you find something that
can edge its way between the stuff and the parts, you might be able to peel
it off. And if it's based on actual rubber try ozone to perish it fast so it
will crumble away.


And, it probably rots internal organs.....


And what did you think the grey goop was made of? Thpthpthp (That being
my best Hannibal Lecter impersonation, feeble though it may be).