Ok - I was doing some work on a circuit board (actually, it was a CD drive) and basically it all went badly wrong. I was trying to modify the circuit by soldering pins to the copper on the board, but before I did that I had to scrape away the protective layer on top. Unfortunately, I scraped too hard and damaged the copper badly.
So my question is, Is there any product on the market which could enable you to paint the bleeder back on? Some kind of conductive copper paint? Surely people make mistakes like this all the time?