KPeacock Posted November 13, 2008 Share Posted November 13, 2008 I found it impossible to find ferric chloride at electronics stores i nthe area and after two days of searching i ws only able to locate ferric chloride in a 55gal drum, or in a 4oz container. I just purchased the 4oz container and found out that it is 4oz of ferric chloride crystals. i was expecting liquid, but I"m sure it will work out the same. Do any of you know the final concentration of mixture that you use? I spent a bit of time searching the forum for the answer and only came up with quantative numbers like a 3:1 mix with water when using PCB etchant from radio shack. Any quesses as to a final ratio? do you think it even matters? My guess is that a stronger mixture will etch faster, btu I"m guessing there is a point of diminishing returns. If I can't figure out the answer here, I'll try to find some computer geeks and see if they know what the concentration is for the PCB etchant. So far, everyone I have talked to has looked at me like I have three eyes. Thanks, Kris Have you ever thought about the life of steel? It's interesting to think that you can control the fate of a piece of metal. Link to comment Share on other sites More sharing options...
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