Hi everyone. I just cant think of any great ideas to try fix this. Its basically a PCB out of an electronic cashier till, the "0" and "00" pads are worn due to always being pressed like a million times. Any ideas on how to repair this? See pictures attached (K51 and K52) bottom left

Any great ideas would greatly be appreciated :-D

 

Two possible repair substances are available. One is the conductive silver paint and the other is graphite paint. The graphite paint is intended for repair of remote control buttons (the actual buttons not the pads they connect to).

If the copper tracks are still intact then the graphite paint very carefully applied - test your dexterity - to the bare copper may work. I don't know how well it would stick to the copper.

If the copper tracks are damaged then they could be repaired with the silver paint. This one of the intended uses so should work well.