Re: C2" Copper Pipe
newbie310,
You polish them with a buffing wheels and different buffing compounds. Then you clearcoat them to keep them from tarnishing!
If they have scratches in them then you will have to sand them with progressively finer sandpaper and then buff. Start with 320 grit wet and dry paper, and then go finer.
Copper is soft so I'd start with an airway or sewn buff and some tripoli. Then finish with a loose buff and some white compound.
If you don't have a buffing machine you can use an electric drill motor and 4" buffs.
John
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