Letter 15049

Etching of 3000 series aluminium  

++

I am having trouble etching a 3000 series aluminium. Have tried caustic, Tuckers, Kellars, Barkers, dilute and concentrated HF with water. I only have success in revealing the precipitates and cannot resolve the grain boundaries. Can anybody out there help me out??

Matthew Hogan
Melbourne, Victoria, Australia


+++++++

It's better to anodise it .

Kas
- Manchester


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