When we work Roman jewelry we use bird seed. The oil in it lubricates it and it's soft enouph not to harm even cystalized silver, it will remove the tarnish and oxidation. I don't know if it would work on the dip though. I guess the trick would be to get a piece that has that dip on it and run it checking every 10 minutes or so. I have read Orv's articles and have tried it using WD40 and even GunBrite. The outcome just wasn't uniform though. The trick would be to find the line between the durability of the dip and the durability of the blue. From my reading the blue should be much more durable than the dip. Would there also be a noticable difference between the russian dip and the vopo gunk?
Abrasion is abrasion, however there are varying degrees of it and it can be controled to an extent. Even a babies cotton diaper is an abrasive. I would never advocate anything but standard cleaning on a collector grade weapon. I consider bronze wool as too abrasive for what is considered collector grade. I am posing this question in the restoration/refinishing section as I consider if it has that black gunk all over it, it's not really collectors grade, is it? I quess the trick would be to find a dipped mismatch, or a piece from one to give try it.
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