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Old 2012-04-24, 9:51am
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Holly Holly is offline
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Join Date: Jul 01, 2005
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Some of my blacks do it more than others, even within the same brand. It's the metal oxides coming to the surface.
Since I work on a Hothead I'm always in a bit of a reduction flame.
I would try to go back and forth between a reduction and oxy flame and see if you can determine if it's flame chemistry.
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