Technical question five, why is the same color number for powder coating and spray painting, but the effect will have obvious color difference?

When faced with such a problem as a customer's response, client previously commissioned us to produce a vacuum cup with bright spraying paint, the color is similar to purplish red (aubergine purple).

With the segmentation of client's market, the other party need to make the same product with powder coating in the same color number, but after the color comes out, it is found that there is a clear color difference with the effect of bright spraying paint. What caused this?

There are obvious chromatic aberrations due to the following reasons:

1. Physical phenomena.

Bright Spray painting, the surface of the spraying is smooth, and light refraction is regular. After powder coating, there will be obvious particles on the surface and irregular light reflection. This will cause obvious color difference even if the two colors are the same.

2. The processing technology is different.

The baking temperature of the spraying product is usually maintained at 130℃-160℃, and the baking temperature of the powder coating product is 110℃-120℃. If the temperature is too high, the surface of the plastic powder will be carbonized, and the color effect will be inconsistent after baking at different temperatures.

How to eliminate chromatic aberration?

If you want to eliminate chromatic aberration, you can only make continuous attempts.

Regardless of adjusting the color value of the powder coating or adjusting the spraying thickness of powder coating and the duration of the baking temperature, etc., only continuous attempts can reduce the color difference caused by these two processes.

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