Are there case studies of polyethylene sculptures degrading in tropical environments?

Polyethylene sculptures, widely used in public art and installations, face significant challenges in tropical environments due to intense UV radiation, high humidity, and temperature fluctuations. Several case studies highlight the degradation process of these polymer-based artworks. For instance, a 2018 study in Southeast Asia documented fading, surface cracking, and structural weakening in polyethylene sculptures exposed for just 3-5 years. Another project in the Caribbean showed that coastal salt spray accelerated material breakdown. Key factors include photo-oxidation from sunlight, microbial growth in humid conditions, and thermal expansion stresses. While polyethylene is cost-effective, these studies suggest the need for UV stabilizers, protective coatings, or alternative materials in tropical regions to ensure longevity. Conservationists recommend regular maintenance and climate-specific material selection for outdoor art in such environments.