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Oxalic vs sulfuric Anodizing of Aluminum

Aluminum How-To
"Chromating - Anodizing - Hardcoating"
by Robert Probert

Also available in Spanish

You'll love this book. Finishing.com has sold almost a thousand copies without a single return request :-)

"The Surface
Treatment &
Finishing of
Aluminium and
Its Alloys"
by Wernick, Pinner
& Sheasby
pinner

(note: this book is two volumes)

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I need to know if there is a difference between Oxalic and Sulfuric anodization. I know that the colour will differ and I think there is an issue with pore sizes, but will this affect their function as a wear resistant hard coating where there are no temperature or pH considerations?

John Hayes
medical equipment supplier - Dublin City, County Dublin, Ireland
2003

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