Ok this was wierd. I went to open my jar of #24 today to polish the newly installed brushed chrome sink in my bathroom (they got it dirty when they installed it) and in the maybe month I hadn't used it two separate colonies of mold had started growing in it! One grey, one blue. Apparently metal polish is a good food source for it.
Has anyone else had this happen? I've kept it stored inside with the lid on tight in a good storage climate, I don't get it.

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