Red Dan anti-rust paint is a traditional high performance anti-rust primer, and the price is low. It is generally believed that its corrosion resistance is a lead soap formed from fatty acids and lead in oil. Lead soap is a corrosion inhibitor; however, it is also believed that the protective effect of red pigment is related to the polarization of the cathode and anode corrosion reactions. The cathodic reaction of the iron matrix is ​​polarized by the formation of a low solubility Pb ​​compound, and the anodic reaction is formed by forming an insoluble Fe compound from soluble Fe and depositing it in the metal lattice together with the oxide and hydroxide of Pb. . Due to the presence of lead poisoning, in order to protect the environment, red Dan antirust paint is gradually being replaced by other antirust primers. However, railway steel bridges are still a permanent and important Steel Structure, so they are still widely used in steel bridges in China. Red Dan anti-rust paint can be red phenolic phenolic anti-rust paint, or red Dan alkyd anti-rust paint, in which the content of red dan in non-volatile content is not less than 65%. Curtain Wall,Glass Curtain Wall,Frameless Glass Curtain Wall JIANGSU ANDY STEEL STRUCTURE CO., LTD , http://www.chspaceframe.com
Red Dan antirust paint
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