[Coco] Coco keyboard trouble

[Bill Pierce]

My current coco has an Eagle AT interface and the keys on the keyboard are slowly going one by one as the pads are wearing thin. As I can't find an old AT keyboard at the moment, I'm trying to get one of my old Coco 3 keyboards to work again. I opened the coco keyboard and cleaned all the contacts and reassembled. Dead keyboard. Upon further inspection, there seems to be a trace on the ribbon cable coming from the keyboard that is broken. It's the very first trace on the side that has 2 traces then a missing trace.
Is there anything I can use to "paint" over the trace to make the connection? This trace is on the clear plastic ribbon cable coming from the keyboard so it would have to be something with conductivity and not melt the plastic.

Thanx
Music from the Tandy/Radio Shack Color Computer 2 & 3 
https://sites.google.com/site/dabarnstudio/
Bill Pierce
ooogalapasooo at aol.com