Hey George:
As a former Radio Shack employee, I can tell you why there are 2 different cans of contact clear. The reason is: One has a oil in it for lubing and the other doesn't. Get this, my final days working at Radio Shack, there was 4 different kinds! That reason is because we were phasing out the old ones that had CFC's. WE had to do our part in saving the Ozone!
Why didn't I think of that idea?
Besides radio connectors, LED's, and wire. I will have to get some of that cleaner!
Thanks, George.
Andy
As a former Radio Shack employee, I can tell you why there are 2 different cans of contact clear. The reason is: One has a oil in it for lubing and the other doesn't. Get this, my final days working at Radio Shack, there was 4 different kinds! That reason is because we were phasing out the old ones that had CFC's. WE had to do our part in saving the Ozone!
Why didn't I think of that idea?

Thanks, George.
Andy