I believe we get ours froms "Mits"
Just looked it up on their site, looks like they are replacing it with a friendly product...
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The Consumable Products Group introduces a new cleaner, Enviro-Clean, to enhance the performance of your wire EDM machines. Enviro- Clean has the multi-functional cleaning power of an acid with an unprecedented level of protection and safety for users and surfaces comparative to household cleaners. It contains a powerful scale calcium, lime and rust remover suitable for most materials to extend the life of your EDM machines. Enviro-Clean also removes burn marks, oxidized metals and salt stains that occur during processing. Enviro-Clean replaces hydrochloric and phosphoric acids creating a safer work environment. Enviro-Clean also has a special additive allowing longer dwell times decreasing the machines overall clean-up time. It’s non-fuming, 100% rapidly biodegradable and non-ozone depleting.
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Will have to order some.