One kind of rust protectant and its preparation method and use a molten metal resistant material

The present invention provides a method for preparing an anti-rust protective agent, the method comprising combining water, a silane coupling agent, water-soluble silicate, silica filler and a water-soluble film-forming resin mixed sequentially. The present invention also provides the use in the manufacture of metallic material prepared according to the method described above was prepared to give the above-described anti-rust and anti-rust protectant protectant. The present invention further provides a molten metal material, the molten metal material comprises a hot-dip coating of a metal substrate and the molten metal deposited on the substrate, the coating is an anti-rust protectant as described above the cured product. Very good corrosion resistance against rust protectant pellicle of the present invention provides formed. In addition, anti-rust resistant storage protectant of the present invention provides very excellent, can be stored at room temperature for 180 days after preparation is completed without occurrence of significant changes traits and performance.