Thanks for the reply
I thought it should work ok, just wasn't sure.
I polished a couple items with it when I first posted the question and so far they are doing fine, although they are indoor items not subjected to weathering like auto emblems would be.
Also has not really been that long, kinda short term results so far for me.
Got busy with other things had to put plating on a back burner with the pewter casting for awhile. Though I am about to get back into it
Chromo