Belzona 5831 (ST-Barrier) is a two-part epoxy coating designed for long-term corrosion protection of metal and concrete surfaces exposed to water, humidity, or chemical attack. It is surface-tolerant and ideal for application in areas where complete dryness cannot be ensured, such as ballast tanks, cooling towers, and water storage units. This coating forms a tough, impermeable barrier, making it suitable for immersion service and splash zones.