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Want dull black anodize on alum.

How can you obtain a dull black finish on Alum?

Paul Walsh
QA Machine Shop - Topsfield, Massachusetts
2007

2007

It's easier to make it dull than to make it reflective, Paul :-)

This is a bit oversimplified, but if your anodizing shop etches the aluminum it will come out matte.

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
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