Organic coatings:
The most widely used corrosion control is to paint
the articles to be protected with paints or lacquers. The function of the
organic coatings is two-fold.
(i) The organic coating acts as a
barrier between the metal and the corrosion environment.
(ii) The pigments (red lead, zinc
chromate etc) or dry oils (linseed oil, wood oil etc) present in the paint
often exert an inhibitive action on the corrosion process.
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