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Back in the saddle again
Join Date: Oct 2001
Location: Central TX west of Houston
Posts: 57,205
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My understanding is that aluminum oxide is HARD, much harder than raw AL. I believe it's considered a protective coating. I'll be curious to see what the experts say on this thread.
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Steve
'08 Boxster RS60 Spyder #0099/1960
- never named a car before, but this is Charlotte.
'88 targa  SOLD 2004 - gone but not forgotten
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