I was going to suggest removing the silver plate, but as I read
about it there are toxic noxious chemicals involved. I don't
think I would sand the existing as it would expose new silver
surfaces that would need to oxidize again which would probably
ruin your paint idea. I think I would wash the objects in lacquer
thinner to remove any and all oils, etc. Use a can of Benjamin
Moore spray primer, it seems to bite better than some others.
After it is fully cured, rub the object hard with a soft rag to
see if the primer is well adhered. If it is, have at with
Keep the whole world singing . . . .
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