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How to improve the yellowing problem of light-colored powder coatings

 Last Update: 2021-09-29
 Source: Internet
 Author: User

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Powder coatings need to be baked at a high temperature to melt the powder, and light-colored powder coatings are prone to yellowing during this process

The powder has been baked in the oven for too long and the oven temperature is too high

Different workpiece substrates, thicknesses and shapes, but the same curing temperature and baking time are used without distinction

Different baking conditions at the customer site can also cause yellowing

In addition, the raw materials used in the powder coating itself are not resistant to high temperatures, such as titanium dioxide, resin, and fillers.

Author: Feng Lang

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