The color difference of coil coatings is affected by many factors, mainly including the following aspects:
Substrate surface state: Whether the substrate surface is smooth and clean, whether there are stains, defects, oxidation, etc., will affect the color and color difference of the coating.
Coating thickness: The thickness of the coating will have an impact on the saturation, transparency and depth of the color.
Coating quality: The hue, color paste concentration, drying speed and gloss of the coating will all have an impact on the color and color difference of the coating.
Coating process: The temperature, humidity, spraying pressure, Spray Gun distance, coating speed and spraying method of the coating process will all affect the color and color difference of the coating.
Light source and observation angle: Different light sources and observation angles will affect the color and color difference of the coating, so it is necessary to select an appropriate light source and observation angle according to the specific situation during the color difference test.
Measuring instrument: The measurement conditions and algorithms of different color difference instruments will also affect the color difference value, so it is necessary to select the appropriate color difference instrument and measurement method according to specific requirements.
