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Old 05-10-2013, 09:31 PM   #6
nieuwhzn
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Join Date: Nov 2010
Location: Long Island, NY
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About anything will work to get the yellow layer off, I used Turtle (I usually stay away from Turtle!). As long there is a good final polishing step you're fine. The pitting is a much more difficult problem. These seem to be rather deep microcracks. You would have to remove quite a lot of material to get rid of those.
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