Prolonged exposure to UV radiation the pigments can lose intensity or alter tone. This is most pronounced for unstable synthetic pigments that are more vulnerable under intense light conditions. Even when the paint has been reactivated after drying, the inherent pigment chemistry remains susceptible to degradation. The the rehydration method, which typically involves adding water, does not renew UV resistance, so any color that has already begun to fade will further bleach under UV exposure even after being revived.

Many painters believe that because the paint regains its visual intensity, it has regained its original durability. But this is a misconception. The rehydration merely restores the blendability of the paint, not its photostability. The rate of degradation depends on the quality of the pigment and the level and exposure time of UV exposure. Artist grade acrylics with excellent permanence ratings will hold up better than entry-level acrylics, which often contain less pigment.

To preserve hue integrity, it is important to maintain reactivated paint in a temperature-controlled environment and to avoid leaving finished artwork direct sunlight or strong artificial lighting. Using UV-filtering acrylic sheets can help retain vibrancy over time. Also labeling revived paint tubes with the manufacturing date and https://agro-archive.ru/novosti/52493-chto-takoe-falc-tipy-i-rekomendacii-po-vyboru.html pigment code can help artists identify vulnerable pigments in future projects.

In essence, while reviving acrylic paint is a cost-effective method to extend the life of your materials, it does not undo the degradation caused by UV light. The primary safeguard against hue deterioration is proactive protection through careful storage and protective finishing techniques.