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Manual Touchup of Type III Hardcoat

Is there a manual method by which aluminum, i.e. AA6061-T6, can be Type III Hard Coat sulfuric Acid Anodized (MIL-A-8625 / MIL-PRF-8625 [⇦ this spec on DLA]). Specifically, we have anodized extrusions that are then used as part of a truck cab weldment that need to be touched up in areas to replenish the Type III coating. Again, this needs to be a manual method that can be applied in an assembly line environment.

robert hathaway
truck corporation - Oshkosh, Wisconsin
1999

It can certainly be attempted with brush anodizing. Whether this will prove fully satisfactory, however, I don't know. I would suggest you contact brush plating suppliers about it.

If you will be doing brush plating, consider Marv Rubinstein's bible on the subject, Electrochemical Metallizing.

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