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Nah, i have no plans on trying it anytime soon. The stuff we use though if formulated to rinse off...heck, it rinses off teeth :) When I do try it, you can be assured that I'll try it out on a test...

That's an interesting idea. I've thought of bringing home some etchant we use in our dental office to etch blades: http://www.henryschein.com/us-en/Search.aspx?searchkeyWord=etchant The base is a...