Tarnish-resist treatment

Dear Orchidians:

I see from the Archives that my 29 May post did not print the list
of available treatments properly…The six products aRe:

  1. Turtle Wax Metallic Car Wax (blue container)

  2. Turtle Wax Original Hard Shell Shine Car Wax (green container)

  3. Simoniz Liquid Diamond Polymer Sealant (“active silicones and
    polymer sealants”)

  4. “The Treatment” Carnauba Paste Wax Can 8. oz (USA)
    www.thetreatment.com containing carnauba wax, conditioners, durable
    silicones

  5. Antik Wax—Beeswax and carnauba wax—Locally packaged but from
    Poliboy(Germany)—Marketed for furniture (wood)

  6. There are also some Turtle Wax liquids.

Which, if any, are likely to prevent the copper alloys from
tarnishing and—more important—prevent fingerprints? Are the
silicones/polymers important (as this is missing in the German
product which otherwise sounds good)?

Thanks for any advice!
Janet in Jerusalem