What are the challenges of maintaining the original hue of pine figurative sculptures under UV exposure?

Maintaining the original hue of pine figurative sculptures under UV exposure presents several challenges. Pine wood, while aesthetically pleasing, is particularly susceptible to discoloration when exposed to ultraviolet light. The primary issue is photodegradation, where UV rays break down lignin—a key component of wood—causing the surface to turn yellowish or grayish over time. Additionally, pine's natural resins and tannins can react unpredictably to sunlight, leading to uneven fading. Humidity and temperature fluctuations further exacerbate the problem, accelerating the deterioration process. Artists and conservators often use UV-resistant coatings or display sculptures in controlled environments to mitigate these effects, but achieving long-term color stability remains a significant hurdle. Understanding these challenges is crucial for preserving the beauty and integrity of wooden art pieces.