Salt spray in coastal environments can severely damage outdoor trash cans, leading to rust, corrosion, and reduced lifespan. To combat this, designers must prioritize corrosion-resistant materials such as marine-grade stainless steel, powder-coated aluminum, or high-density polyethylene (HDPE). These materials withstand harsh conditions while maintaining structural integrity.

Another key factor is protective coatings. Applying anti-corrosion treatments like galvanization or epoxy coatings creates an additional barrier against saltwater exposure. Sealed seams and drainage holes also prevent moisture accumulation, reducing rust risk.

For optimal durability, choose trash cans with reinforced hinges and latches made from non-metallic or coated metals. Additionally, elevated bases or legs minimize direct contact with salt-laden ground moisture.

Regular maintenance, such as rinsing with fresh water, further extends the lifespan of coastal trash cans. By combining robust materials, smart design, and proper upkeep, outdoor trash cans can effectively resist salt spray damage in challenging environments.