The equipment has been in a humid environment for a long time, moderately heavy corrosion environment or even subject to water immersion. Corrosion prevention focuses on water and moisture resistance, especially in dry and wet areas.

Water conservancy dam, usually consists of water retaining main dam body, power generation building, navigation building and other parts, the dam body is concrete gravity dam. For the anti-corrosion of concrete structure, the coating is required to have good permeability, adhesion, alkali resistance and other characteristics.