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					Originally Posted by DaveS
					
				 
				David:     98% of the etches that I do are done with phosphoric acid.  I only use ferric chloride if the metal doesn't respond to the phosphoric.  The few times that I have tried vinegar, it didn't really do much, at least not to my liking anyway............Dave. 
			
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 My point was a 
light etch to add a touch of contrast Dave. Any way that suits you i guess.