Hi Joanna! For your anodised aluminium balcony track in a coastal environment, we recommend ProtectaClear. This clear, durable coating is specifically formulated to protect metals from salt air, corrosion, oxidation, and spotting in high-salt conditions. It creates a thin, nearly invisible barrier that repels salt deposits and moisture, significantly minimising spotting and reducing the need for spot removal or frequent cleaning compared to an uncoated surface.

The coating greatly reduces salt adhesion, so routine spot removal should be minimal. When you think it need be clean, please avoid abrasive pads or harsh chemicals to maintain the anodised finish and coating integrity. Hope this helps :)