Assuming you can still find it (it was recently banned from EU at least,
due to suspects of it being cancerous) you can use DCM (dichloromethane),
usually easily found in paint removers/strippers.

Regards,
Mario


At 18.14 2011.10.03, you wrote:
>Hi, I have a 400W motor controller that is in a metal box and it is=20
>potted.  I'm curious if there are techniques to remove the potting.  The=20
>box is approx 2"x2.5"x1".  The 2"x2.5" dimension is open and the potting=20
>is (up to) 1" deep.
>Background: This is for a 24V 400W DC brushed motor on a ThinkMobility=20
>Funbike.  I've found little documentation on the bike.  The controller=20
>has input lines from pedelec and speed sensor, as well as a cable from=20
>the handlebar mounted "brain".  Wiring everything to the battery results=20
>in no lights on brain and no power to the motor.  I'm looking at generic=20
>controllers on eBay ranging from $32 to $60.  I don't currently have the=20
>tech shop or junkbox to just wire something up.
>
>Joe W
>--=20
>http://www.piclist.com PIC/SX FAQ & list archive
>View/change your membership options at
>http://mailman.mit.edu/mailman/listinfo/piclist

--=20
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist
.