I think "scratching" the anodizing is being blown out of proportion. The layer of oxidation from anodizing is very hard and I doubt brass barbs would harm it. Something that has been bugging me though was the mention of corrosion activity being concentrated if there is a small exposed/unanodized area. I did some reading on anodizing a while back, I was thinking of setting up a home brew outfit. Everything I read mentioned hanging the piece to be anodized by a wire/electrode into the solution. They also always mentioned that the place where the wire/electrode made contact with the piece would not be anodized. This called for a bit of planning ahead, and they usually suggested having the area in a spot that would be hidden when the piece was in normal use. Lately with all the talk about aluminum tops and corrosion, I've been wondering where this spot is on them. I would assume it would be in one of the mounting holes or some other dry spot. But I've kinda been suprised the subject has never came up. Well I feel better getting that off of my mind 8)
peace.
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