[time-nuts] Completely OT: Removing electrolytics of leaking capacitors from a pcb

[Marco IK1ODO]

Ulrich,

warm water, soap and brush. If not enough, try mild acids, then rinse 
and dry with isopropilic acid.
Something this is simply not enough, if the corrosion reached the 
inner layers of the PCB there is, IMHO, nothing to do.
Even solder resist becomes brittle and detaches from copper if the 
corrosion comes from beyond. If this is the case I try to get clean 
copper by gentle brushing, to expose the damaged area. Once I found 
eroded tracks under an apparently good resist layer.

Marco IK1ODO