Juno Junoretano 2K is tough as they come for coastal railings—resists salt and UV like a champ. Applied it to my seaside fence from PaintLab.ie last spring, mixing the 2K hardener was straightforward, and it cured rock-hard in 24 hours. High-build formula covered rust-prone metal in two coats, glossy finish still shines after storms—no chalking. Used a roller for speed, but sprays fine too; their mixing ratios on-site were spot-on. Small kit was perfect, free delivery over €75 arrived quick, saving a trip. Holds up better than cheaper enamels I've tried, with zero peeling. Pro tip: light sand between coats for max adhesion. It's my default now for outdoor metal. Look here: https://www.paintlab.ie/products/juno-junoretano-2k-polyurethane-enamel Reliable without the fuss.