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Zinc vs. black oxide, which is heat resistant if at all

Zinc vs. black oxide? Need to know which coating is more heat resistant and less likely to break under heat application of around 600 F to 800 F in an exhaust manifold.

57044 57044-2

Melissa Arrington
parts and engine upfitter - McKinney, Texas, USA
April 14, 2011

Zinc's melting point is a little under 800° F

Trent Kaufman
electroplater - Galva, Illinois
April 19, 2011

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