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19th February 2014, 10:40 PM
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#8 |
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Member
Join Date: Mar 2005
Posts: 373
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Etching
Hi David S, You mentioned you preferred using Phosphoric acid to etch. Would you tell us what grade, strength% you use and if diluted the ratio.
My first etching was with some used in wine testing worked great now not available. Thanks, Steve |
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