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unfinished aluminum

Ed Cole wrote:

The G3RUH dish is unfinished spun aluminum...very shiny!
Thus it is prudent to paint it...

Wayne replies:

I suppose I should paint my G3RUH dish one of these days.

I'm curious if anybody knows how much LESS reflective unfinished aluminum
becomes after it develops a coating of aluminum oxide.

Wayne Estes W9AE
Mundelein, IL, USA

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