[sdiy] de-potting

[Graham Atkins]

On 19 Sep 2010, at 20:15, Colin Fraser wrote:

>
>> I've Googled up some info about a chemical called 'Attack',
>> which tends to work good on epoxy. Any of you guys ever used
>> this before?
>
> Nope, but I have used Nitromors All Purpose Paint and Varnish Remover.
> You can get it in the UK at B&Q, or any decent hardware store.
> It is mostly dichloromethane, with a bit of methanol, in a gel base  
> so it
> doesn't run all over the place.
> The tricky bit of de-potting epoxy encrusted circuitry is that many
> component packages (or value labels) will also be eaten by the  
> chemical
> removing the resin, as well as the epoxy holding the fibreglass in  
> the PCB
> together.
> Proceed with caution.

The words "Sledgehammer" and "Nut" come to mind !.

Graham