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Titanium anodic coating on anodizing racks

Does the purple-blue anodic coating on Titanium inhibit conductivity? Do I need to remove this from racks used for Hard Anodising in 15%sulfuric acid? If so, is there an effective method available to achieve this?

I am very new to anodising and would greatly appreciate any help.

Gene Cole
anodising - Wanganui, New Zealand
2005

The thin oxide coating which forms on titanium racks does no harm and does not need to be removed.

Jeffrey Holmes, CEF
Spartanburg, South Carolina
2005

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