silver immersion

I cast pewter key chains and would like to use pewter black on it and have a nice siver shine on it . how do use silver immersion and pewter black together. and do you sell silver immersion?
 I tumble the pewter with microbrite balls but the pewter comes out dull and not a shine like your charms.

[Polly]

Hi Craig,

At this point in time, we only sell Griffith Silver-Black, and Liver of Sulphur.
We used to sell silver immersion..
I looked in an old catalog, and all we say about the silver immersion is "Interesting effect -- gives pewter look to brass and copper alloys.  Instructions included.  Use after the black antiquing solution."
But since we no longer stock it, I'm afraid I can't go look at the package and see what it says.  In 2000, it was $26 per 6oz bottle, so I can see why you would prefer to find out how it works before buying a bottle, just to read the instructions!
--Polly