Why iron oxide red is used in anticorrosive coatings?

Iron oxide red is a commonly used inorganic pigment. Its appearance is red powder, and its chemical composition is iron oxide, which is natural and artificial Species. Generally, artificial iron oxide red is selected. Now let's describe the composition of our common iron oxide red.

Due to different production methods and operating conditions, artificial iron oxide red has great differences in crystal structure and physical properties, and its color changes from When it comes to orange light, blue light and purple light, the covering power and coloring power are very strong. The relative density is 5-5.25, which has the function of light resistance and high temperature resistance, It is resistant to atmospheric influence, turbid gas and alkali, and can be gradually dissolved in concentrated acid only under heating.

What is the reason why iron oxide red is widely used in anti-corrosion coatings in daily life? Let me analyze it for you.

What is red iron oxide used for?

Iron oxide red is often used as red pigment and can be used as anticorrosive coating. It can be divided into natural and composition. Natural iron oxide red is called red soil contains more impurities, and its color varies widely from orange to dark brown with the different iron oxide content of laterite,The covering power of natural iron oxide increases with the increase of iron oxide content; The composition of iron oxide red is basically plain iron oxide
The crystal structure and physical properties vary greatly with different production methods and operating conditions. The composition of iron oxide red is basically plain iron oxide。


Iron oxide has a strong coloring power, second only to carbon black. Iron oxide red is an inert pigment with high chemical stability, light resistance, heat resistance, and alkali resistance,

It is resistant to enoic acid and can absorb ultraviolet rays. Iron oxide red is a new type of pigment, which not only has the function of ordinary iron oxide pigment, but also it has high transparency, high dispersibility iron red, iron red is bright red, orange when containing lead chromate, light fastness, coloring power and covering power they are excellent. They are often used in the finishing coat of mechanical products, methylamine red, also known as scarlet.

The appearance is bright red powder, with high light resistance and water resistance

Resistance and oil resistance, acid resistance, high covering power and coloring power, toluene amine red slightly soluble with ethanol and benzene, soft and easy to grind, yes a fine color pigment with bright color. Strong coloring power, insoluble in ethanol, soluble in hot water, yellow and  red, with good color,it has acid, alkali, light and heat resistance.

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