caustic soda never gets good anodising off properly. Instead it makes it patchy, reacts with aluminium making it sort of black, and leaves a coating of white oxide you can almost never get rid of.
What end result are you going for?
@DFP started
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caustic soda never gets good anodising off properly. Instead it makes it patchy, reacts with aluminium making it sort of black, and leaves a coating of white oxide you can almost never get rid of.
What end result are you going for?