Park chairs are exposed to harsh weather conditions, making caulk deterioration a common issue. To combat this, manufacturers use high-quality, flexible sealants designed to withstand temperature fluctuations and moisture. Regular maintenance, such as cleaning and reapplying sealant, also plays a crucial role. Additionally, some chairs feature protective coatings or UV-resistant materials to further shield the caulk. Proper installation and drainage design help prevent water pooling, reducing stress on the sealant. These combined strategies ensure park chairs remain durable and functional for years.