Which Kontakt aerosol Oxide-dissolving contact cleaning....

Which Kontakt aerosol Oxide-dissolving contact cleaning spray should meat my demands, I had in mind "Kontakt 60" by Chemie CRC, but its based on OIL, I need something more like contacts cleaner with fast vaporize spray for Computer hardware , especially for contacts on Hard drives, motherboards, Pci slots ,memory slots, Molex and ATX connectors. Some contacts are based on bras, some on cooper, some are made by metal alloy, few are silver plated and few are gold plated, but just few.

I need some practical advice if its possible. How do you use it.

Here are some of choices:
Kontakt 60
Kontakt IPA
Kontakt Tuner 600
Kontakt WL
Kontakt 390
KONTAKT PCC

Thank you.

I use Kontakt U : http://www.ag.net.pl/oferta_a.html

Could you translate me on this page http://www.ag.net.pl/oferta_a.html#
about Kontakt S, Kontakt PR, Kontakt U - KU.

Kontakt U - KU, I see something about cleaning kalafonię after soldering, could you explain me more about "U-ku", is it too aggressive.

Ok I make out, kontakt PR is like Kontakt Tuner 600- its for radio tuners and potentiometers in Hi-Fi.

kontakt S is like Kontakt 60 or 61 (this one is lubricant), and I don't know is it Lubricant or its fast vaporized -its used for cleaning oxides and corrode.

Kontakt U is similar to S but its primary used after soldiering to remove greasiness from pcb and it can clean some parts of oxides.