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gordner gordner is offline
Lots of snow Porsche away
 
Join Date: May 2011
Location: Calgary Alberta
Posts: 11,839
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Normally when anodizing aluminum, you use alumiprep first, an acid etcher. Even though you are trying for a small local spot, I would suggest first etching it as it will not take much colour without it. I have annodized unetched aluminium before and you can leave it in the bath 5 times as long as etched aluminium and still pick up only about half the colour tone.

And keep in mind alodine is very toxic and is trans-dermal so will absorb through your skin quickly.
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76 911S
86 GMC K1500
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79 XS750 because one is just not enough
Old 01-20-2014, 12:50 PM
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