There are three ways of protecting a metal surface from corrosion using protective paints.
Corrosion: the action or effect of corroding, loss of metal.
Corrosion requires oxygen, water and metal.
There are three types of protective paints:
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Type
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Cause and effect
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Paint Examples
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Cathodic
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Anode (steel) exchanges with another metal. Steel become cathode. Anode: corroding metal. Cathode: protected metal.
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inorganic zinc and organic zinc
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Barrier
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Prevents passage of oxygen and water. Effect: no steel contact with oxygen and water equals no corrosion. |
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epoxy mastic, polyurethane, chlorinated rubber, vinyl, and phenolic |
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Inhibitive
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Restrains corrosion activity using anti-corrosive pigments. Effect: action rate is slower equals less corrosion. |
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alkyd, water-based |
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To learn more about how IPA can assist you and your company with your industrial paint and abrasives needs, please contact us. You won't find a more responsive company ready to serve you with the best customer service in the industry.
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