Karve copper

[HereticHermit]

......toothpaste and Brasso works just as good too.

 

[Morpheus]

Ketchup does a wonderful job on brass… No need to polish…

Whatever works for you bud, but 'Brasso' is cheap enough to not have to find alternatives.

Cape Cod used on my mech collection below.

 

[Holyzeus]

Renaissance Wax forms a protective barrier, so it’s preventative

 

[Morpheus]

Renaissance Wax forms a protective barrier, so it’s preventative

Will give it a try mate.

 

[HereticHermit]

Agreed. Renaissance wax is professional grade stuff and last many months. As it is a preventive; can also be used when desired level of patina is reached, renaissance wax application will stop any further patina development. Next application is many months far.