"leeleduc" <leeleduc@...> writes: > Available at Hardware, Building Supply, and Pool Supply stores > Hydrochloric Acid / Muriatic Acid 31% In our local hardware store, it's in the paint aisle, as it's used to clean concrete before painting.
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Re: [Homebrew_PCBs] Re: Sponge etching with HCl and H2O2?
2011-11-28 by DJ Delorie