How does the resistance to fading from air pollutants vary among these materials?
Air pollutants can cause significant fading and degradation of materials over time, but resistance levels vary widely depending on the material type. Metals like aluminum and stainless steel generally exhibit high resistance to fading due to their non-porous surfaces and protective oxide layers. Painted surfaces, however, are more susceptible, with acrylic and epoxy-based paints offering better longevity than latex. Fabrics treated with UV-resistant coatings or made from synthetic fibers like polyester tend to outperform natural fibers such as cotton. Stone materials like granite are highly durable, while marble may show discoloration over time. Understanding these differences helps in selecting the right materials for environments with high pollution levels.
