Q: We have insect and proteinaceous residues we are looking to remove from an aluminum drum. We know Tergazyme is the “go-to” for such things but we seem to get aluminum chelate blush. Can you recommend something different?
A: A chelate blush is a white crusty irregular deposit of aluminum edetate, a reaction between the aluminum and the chelating agent in some Alconox Inc. detergents. You are totally correct to try a protean enzymatic detergent.
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