"Arfa Daily" wrote in message
...
Sounds a bit like one of those late night cable programs "When Good Snakes
Go Bad" :-)

We have discussed this topic on here a number of times, and one thing that
usually comes up is how you get the stuff off. There's a switcher that I
do which has a pair of small radial electrolytics 'folded over' and glued
down on top of a whole bunch of surface mount components on the small
drive / control sub-board. Some of the components that are under the glue
run quite hot - a zener for instance - and this has a double whammy effect
on the board in that first it turns the glue brown, which then becomes
conductive, and then it also does a nice job of conducting the heat into
the caps, to ultimately **** those as well.

The glue gets right down between the pins of the PWM / driver IC amongst
other places, and is an absolute bitch to remove, without damaging
assorted gnat's-bollock sized support components in the vicinity.

Well, today, quite by accident, I discovered that my favoured flux removal
chemical - Servisol Deflux 160 aerosol - does a nice job of softening the
glue up. Not quite to the point of actually dissolving it, but enough that
it can then be fairly easily picked off with a fine scalpel blade, and
then scrubbed off with an old toothbrush, once you've got the thick of it
off.

Arfa



Thanks, I've a pair of Tannoy powered monitors caked in the stuff.
As luck would have it I've just finished a can of Deflux 160.


These Tannoy still have a lot of the original yellow in it, I was wondering
WTF I was going to do about it because it does not want to shift easily at
all.
They have used it everywhere.



Cheers,

Gareth.