[TowerTalk] Best Way To Clean Copper Ground Wire for Erico Cadweld Connection?

[WA7NE]

I'm installing a number of ground rods to be connected by 2 awg stranded
copper wire.   I plan to use Erico's OneShot for making the connections.
My 2 awg stranded copper wire is a bit tarnished so I'm inquiring about the
best way to clean it for Cadwelding.

 

Is something like Brasso or Noxon followed by a wire brushing sufficient or
is there a better way?  I know there should be no contaminants left on the
wire.

 

Thank you,

Wayne / WA7NE