Are polyethylene outdoor sculptures prone to discoloration from air pollution?
Polyethylene outdoor sculptures are popular for their durability and versatility, but many wonder if they are prone to discoloration due to air pollution. While polyethylene is resistant to moisture and rot, prolonged exposure to pollutants like sulfur dioxide, nitrogen oxides, and particulate matter can cause surface discoloration over time. Additionally, UV radiation accelerates this process by breaking down the polymer chains. To mitigate discoloration, consider applying UV-resistant coatings and regular cleaning to remove pollutant buildup. High-density polyethylene (HDPE) is more resistant than low-density variants, making it a better choice for polluted environments. Proper maintenance can significantly extend the vibrancy and lifespan of polyethylene sculptures.
