Water-soluble self-curing inorganic zinc-rich paint

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Water-soluble self-curing inorganic zinc-rich paint utilizes carbon dioxide and moisture in the air to react with silicates; while carbonates are formed, zinc powder also reacts fully with the silicates to produce zinc silicate polymers. It retains its sensitivity to water until the water solvent has completely evaporated from the paint film. Its curing is greatly affected by temperature and humidity. This inorganic zinc-rich material is mainly used for the inner walls of storage tanks in vessels containing refined oils or chemicals. To enable it to cure completely and achieve the desired corrosion resistance, methods for accelerating curing can be employed. After 24 hours since the coating has been applied, clean water or seawater can be sprayed, after which the tank or compartment should be sealed; the spraying process should be repeated 3–4 times within 48 hours. Remove the water and let it dry. Then, coins can be used to check the degree of curing; if no zinc powder can be scraped off and it retains its bright natural color, it can be considered that it has fully cured.