Will copper mica powder pigment fade when exposed to sunlight for a long time?

Copper mica powder pigments exposed to sunlight for a long time may fade. Although copper mica powder pigments have certain light resistance, prolonged exposure to ultraviolet and other sunlight can cause oxidation and damage to pigment molecules, resulting in color changes and fading.
The following are some factors that cause the fading of copper mica powder pigments:
UV radiation: Prolonged exposure to sunlight can cause copper mica powder pigments to be affected by UV radiation, which can cause oxidation reactions of pigment molecules, leading to color changes and fading.
Oxidation: The presence of oxygen and moisture can also promote the oxidation reaction of copper mica powder pigments, accelerating color fading. Especially in humid or rainy climate conditions, fading may be more pronounced.
Environmental factors: In addition to ultraviolet radiation and oxidation, other environmental factors such as pollutants, chemicals, or humidity may also affect the stability and color performance of copper mica powder pigments.

To slow down the fading rate of copper mica powder pigments, the following measures can be taken:
Choose high-quality copper mica powder pigments with good weather resistance and UV resistance;
Use coatings or packaging materials with good protective properties to reduce the exposure time of pigments to the environment;
Regular maintenance and upkeep to maintain the integrity and surface cleanliness of the coating.
Although copper mica powder pigments may fade under sunlight, their color persistence and stability can be extended through appropriate material selection and maintenance.