How to select iron oxide red pigment suitable for water-based antirust paint

2022-09-27

Iron oxide red pigment is one of the important raw materials of waterborne iron red antirust paint. The quality of iron red pigment often determines the quality of the paint. The selection of appropriate iron oxide red pigment also plays an important role in the antirust effect of the coating, so how to select the appropriate iron oxide red pigment? The environment-friendly, energy-saving and safe water-based iron red antirust paint meets the requirements of the current environmental protection standards. In recent years, with the continuous improvement and development of water-based resin technology, this also provides the necessary basic materials for the water-based antirust paint. At the same time, the quality of iron oxide red, composite iron titanium powder, zinc polyphosphate and other antirust pigments has been continuously improved, which also makes the anti-corrosion performance of the water-based iron red antirust paint more excellent, It can withstand salt spray test and salt water test for a long time.

As a physical antirust pigment of water-based antirust primer, iron oxide red has the characteristics of stable chemical properties, environmental protection and good antirust effect, which can improve the density of the coating film, reduce the permeability, and improve the corrosion resistance of the coating film. Generally speaking, the price of water-based antirust primer is relatively low, and its raw material cost needs to be controlled. Therefore, the iron oxide red produced by the mixed acid method with high price is not suitable. So we can choose dry process to produce iron red pigment, such as Z895 iron oxide red. Iron oxide red Z895 is iron oxide red produced by dry process. It is made by mixing iron powder and sulfuric acid and calcining at 800 ℃ in the converter. The price is low, the iron content is about 80, it is an environmental friendly pigment, the chemical property is stable, and it does not react with any resin and lotion. Z895 iron oxide red is purple iron red, which is more purple than the color of S190 iron oxide red. Hongrun pigments: 3132 red powder, light fast red BBN, light fast red BBC, golden red C, light fast red 2BP, Lisol magenta 4BP, Lisol red BK, Yonggu red F3RK, Yonggu red F5RK, pigment red 122, pigment red 254, organic medium yellow, organic lemon yellow, light fast yellow G, Yonggu yellow 2G, Yonggu yellow HR, pigment yellow 81, pigment yellow 110, pigment yellow 139 Pigment Yellow 151, Pigment Yellow 180, Yonggu Orange G, Pigment Orange 64, Phthalocyanine Blue BGS, Phthalocyanine Green G, Pigment Purple 19, Yonggu Purple RL and other organic pigments. It has excellent acid resistance, alkali resistance, heat resistance, light resistance, heat resistance and chemical stability. It has the characteristics of non-migration and non-bleeding in paint and water-based paint, and also has high coloring power and covering power. Especially suitable for alkyd iron red antirust primer and water-based iron red antirust primer.

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Effect of color of organic pigment on coating performance