Re: Still having problems with wire
First thing I would do is etch a piece in sodium hydroxide stripper (lye will work). Observe the smut. If it smuts terribly, try sanding an area, and etch again. If it does not smut the second time, there is a coating that is giving you grief.
If the wire does not smut much, it really is 5xxx alloy, and the problem lyes somewhere else.
It makes no sense that you successfully ano one alloy, but not another. All things indicate your wire is not 5xxx, but rather 2xxx or 7xxx.
Have you tried anodizing for 1/2 the time?
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Specializing in anodized graphics in Paintball guns.
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