Antirust paint is paint that protects metal surfaces from chemical or electrochemical corrosion by the atmosphere, seawater, etc. The anti-rust paints used are roughly oil-based and water-based.
Oil-based anti-rust paint makes it difficult to remove the greasy surface of the material and has been rarely used. Oil-based anti-rust paint is easy to use and cheap, but because it contains toxic substances such as nitrite and chromate, it is more harmful to operators, and such products have single performance and cannot meet the anti-rust requirements of magnetic alloy materials.
The water-based metal anti-rust paint is made of metal strong chelating agent phytate as the main component, which is compounded with several other water-based additives. Phytate is a natural non-toxic organic chemical product extracted from food crops. When it is used as a rust inhibitor for magnetic materials, it can quickly chelate with metals on the surface to form a dense layer of single-molecule complex protection, which can effectively inhibit the corrosion of metals. The surface of the material treated with this product maintains its original color, and it can enter the next process such as painting without washing with water.
Antirust pigments are an important part of antirust paint. Physical antirust pigments are a kind of pigment with relatively stable chemical properties. They rely on their own physical properties, stable chemical properties, hard texture, fine particles, and excellent filling. Improve the density of the paint film and reduce the permeability of the paint film to prevent rust. Iron oxide red is such a substance. The rust resistance of metal aluminum powder is due to the scaly structure of aluminum powder, forming a paint The film is tight and has a strong ability to reflect ultraviolet light, which can improve the anti-aging ability of the paint film.
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