Anybody used conductive paint?

[pirate]

After my recent, first foray into LED strips, I now find myself needing to repair a pcb where a copper contact has come adrift from what appears to be a carbon "pad".
I found this:

Bare Conductive Electric Paint Soldering Glue 10ml Pen

Bare Conductive Electric Paint 10ml Pen - Electric Paint is an electrically conductive paint that makes it possible to draw a circuit, cold solder a component or turn any surface into a sensor

www.pcb-soldering.co.uk

Any advice greatly appreciated!

 

[Moley]

I haven't used that make but I have used the 'Electrolube' version. It's dearer but pretty good stuff. Don't know if it could be used to attach a copper contact to a carbon track though. Maybe glue the copper to the pad then bridge with the paint?
I seem to remember that similar stuff used to be used 'back in the day' for repairing heated rear windows.

 

[pirate]

Thanks @Moley
I'll look for the Electrolube version too. The product I linked to said not for use with high-power items like heated rear screens. The problem is that the copper contact and the carbon track are the same size, so it would be tricky to glue the copper onto the track and then bridge the two. I guess I'll get the paint and give it a try...nothing ventured etc...

 

[pirate]

Looking at the conductivity figures, I think it may be too high a resistance...

 

[GBDamo]

My brother, geek, has used silver epoxy glue in the past. Can't recommend a product but worth researching.

 

[pirate]

Quick update on this:
I got the tube of goo and applied a very small dot to the broken terminal...15 minutes later I tested it and had conductivity. I had tested a line of it painted onto cardbpard and the resistance was high-ish, but anyway the tiny copper plate stuck well to the carbon ribbon and sudenly my gadget works again! So, instead of landfill, my £250 GPS thingy works again!
I can see a lot of uses for it in the future, even if only as a repair paste for LED strips (something I only tried for the first time a bit before Christmas as you may know from an earlier thread)
Anyway...my experience suggests it's a good tool for your toolbag...