Living near the ocean is wonderful, but the salty air is brutal on metal. If you manage public spaces or even your own coastal property, you've likely seen trash cans rusting prematurely. Here’s a practical guide to keeping those metal parts intact.
First, material choice is everything. For permanent installations, opt for marine-grade stainless steel (like 316 grade). It contains molybdenum, which significantly boosts resistance to saltwater corrosion. While more expensive upfront, it lasts decades with minimal care. For budget-conscious projects, hot-dip galvanized steel is a strong alternative, where a zinc coating sacrificially protects the underlying metal.
Next, apply an additional protective barrier. Even on stainless steel, a specialized marine-grade clear coat or wax can provide an extra layer of defense. For existing bins or hinges, regularly applying a corrosion inhibitor spray or grease creates a water-displacing film. Pay special attention to joints, bolts, and hinges—these are corrosion hotspots.
Consistent maintenance is non-negotiable. Rinse metal components with fresh water regularly to remove salt buildup. Inspect bins frequently for scratches or chips in the coating and touch them up immediately to prevent the corrosion process from starting. Consider installing bins in slightly sheltered locations, away from direct, constant sea spray.
Finally, for movable bins, choose plastic or composite models for the body and ensure any metal fasteners are treated. By combining the right materials, proactive coatings, and simple rinse-downs, you can drastically extend the life of urban furniture in coastal communities, saving money and keeping our beaches beautiful.