Park chairs are designed to withstand harsh outdoor conditions, and preventing joint corrosion is a key factor in their durability. Manufacturers use several strategies to ensure longevity. First, high-quality materials like stainless steel, aluminum, or powder-coated metals resist rust naturally. Second, protective coatings such as galvanization or epoxy layers create barriers against moisture and oxidation. Additionally, smart design minimizes water pooling at joints, reducing exposure to corrosive elements. Some chairs feature plastic or rubber gaskets to separate metal parts, preventing galvanic corrosion. Regular maintenance, like cleaning and applying protective sprays, further extends their lifespan. By combining these methods, park chairs remain functional and safe for years, even in challenging environments.