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Color

Color coating refers to the application of a decorative and/or protective paint coating to a metal substrate, typically in coil form. This process is usually continuous and highly automated, and provides long-term protection against a range of corrosive conditions.

Before coating, the steel surface is prepared through cleaning and chemical treatment. Finish coaters then apply a precise, uniform coating of the required thickness. This coating is hardened in a flotation oven, and a further protective layer can be applied through heated rolling.

The various stages of the color coating process depend on a smooth surface, but each can introduce blemished or defects. An automated, real-time inspection solution along the coating line can detect defects before they impact on downstream processes.
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