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Finishing
Publications & Online Resources - Troubleshooting |
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Chromate (hexavalent) conversion coatings
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Defect |
Typical cause |
Analysis to confirm cause |
Remedy |
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Colour too weak |
Subscribers only | ||
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Uneven coating |
Subscribers only | ||
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Dull/drab coating of blue or iridescent films. (usually associated with a coating that is too thick) |
Subscribers only | ||
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Adhesion poor |
Subscribers only | ||
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Corrosion resistance poor - drying too hot (coating is the correct colour) |
Subscribers only | ||
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Damaged film |
Subscribers only | ||
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