 Scale removing compounds like Sparex #1
I use a product called Sparex #2 for my non ferrous work (ok, I use the active ingredient from sparex, sodium bisulfate IIRC, that can be had from swimming pool places a lot cheaper). It works great. A few minutes in the stuff when it's warm, and the fire scale wipes off.
I know there is a Sparex #1 for iron and steel, but the MSDS for it doesn't list the active chemical. Seems to be made of something safe. Any ideas, or anyone use something other than vinegar for the same job?
Jeff
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