pcb carbon contacts

[papadopoulos]

I am trying to make a pcb with these black pcb carbon contacts, like the ones that the tv remote control has under the rubber buttons. I have taken the rubber buttons and cop the pattern under them. But the contacts wills top working after a while because of corossion.
Does anyone know anything about this black coating, where can i find it?

Thank you

[kam]

I think is some kind of coating but not like spray or something. Give me some time to check.

[Supernova]

Here you are sir...

http://www.atotech.com/carbon-conductive-ink-paste.html

[papadopoulos]

Here you are sir...

http://www.atotech.com/carbon-conductive-ink-paste.html

Thank you kind sir 

[kam]

Here you are sir...Thank you kind sir...
What a level!!!!!! How gentlemen!!!!!

That's a forum i must say