Posted by vinnie (68.78.33.26) on February 24, 2009 at 08:22:09:
In Reply to: Anodizing method for conductive aluminum? posted by Steve on February 23, 2009 at 10:29:46:
: I would like to anodize aluminum and have it retain its conductive properties. What methods of anodizing will not affect aluminum conductivity?(low voltage application 4.5v) In addtion I would like to dye the aluminum Black.
: Is the Tin (or other metals) in Type II A-24 electrolytic coloring conductive?
: Thank you in advance
the tin in the two step process is not deposited in the coating, it just changes the shade by tinting the coating. All anodizing is non conductive, it is that characteristic that stops the electrochemical reactions that form oxidation or raw aluminum or rust on steel. There are some black iridites that would keep the aluminum conductive, but I have yet to use any that actually work.