Chromate-free ceramic coating compositions
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United States of America Patent
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Jul 19, 2016
Grant Date -
Jul 2, 2015
app pub date -
Mar 13, 2015
filing date -
Nov 9, 2012
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Abstract
A novel chromate-free multi-layer coating system composed of a lithium-doped potassium silicate binder based basecoat composition that is sealed with an aluminum phosphate-based top coat composition is described. The multi-layer coating system exhibits superior corrosion and heat oxidation resistance which can replace traditional chromate-containing coating systems.
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