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Posted

Well at least it's very, very fine but that doesn't really account for the color. Might be something used in the manufacturing process... perhaps carbon?

Posted

I was thinking that (since it was indicated for flash powders) that it either had some sort of "activating" agent the would somehow make it easier to get through the Al2O3 layer on the grains, or perhaps the oxide was somehow different from normal aluminum oxide.

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