Trouble with ballance pot.

The left channel on my Outlaw RR2150 has become intermittent. Turning the balance control back and forth will get it working for a wile. The most likely problem is a dirty balance pot. My question is, what is out there for cleaning pots, and were to get it.
Radio Shack....Spray cleaner..Electronic cleaner..Works well...........Around $10
Radio shack is what I use but I have heard that Caig is the best stuff. I have fixed really bad volume and balance pots with the Radio Shack contact cleaner and Lube and I do recommend it.
I want to thank all who responded. I was able pick up the Caig-DeoxIT at a local electronics shop. It worked well. Don't know if it is better than the other products, but I am happy with the outcome.