Aluminium special etching ?

hi buddies, i recently found some interested aluminium etching photos ,

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which created some special corrosion process. and i would like to using this technic into my projects. do someone know the formula to make such corrosion process??

Thanks for helping


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I would try it with Fe-III-Cl. It can be easily obtained where hobbyists that etch PCBs get their stuff.


Reply to
Nick Müller

Even better for aluminum is sodium hydroxide, aka lye.

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Looks to me, to be alot like plain etched and alodined (Alodine 1200 "the rust effect") aluminum "

Reply to
Franklin Newton

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