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| Comparison Items | Iron Oxide Pigments | Mica Iron Oxide Pigments |
| Composition and Structure | Composed of iron oxides (such as Fe₂O₃, Fe₃O₄), with the crystal structure directly determining their basic color and performance characteristics | Using natural mica as the base material, an iron oxide coating is formed on the surface through chemical treatment. The unique flaky structure endows it with special properties |
| Color Characteristics | Possess a rich color spectrum including red, yellow, brown, black, etc., meeting diverse color requirements, but with limitations in color vividness and saturation | Single - colored, mainly reddish - brown, not suitable for scenarios with multi - color requirements |
| Weather Resistance | Have basic weather resistance, capable of withstanding color fading and performance degradation under normal climatic conditions | Excellent weather resistance. The flaky structure can form multiple barriers, effectively isolating the erosion of water, oxygen, and corrosive media |
| Chemical Stability | Have certain resistance to common weak acids, dilute acids, and alkalis | Highly stable chemically, able to maintain stable performance in complex chemical environments for a long time |
| Hiding Power | Have a certain degree of hiding power, but difficult to meet the requirements of high - hiding - power scenarios such as thick - paste coatings | With the advantage of the flaky structure, excellent hiding effects can be achieved with a lower dosage |
| Mechanical Enhancement | Have a relatively limited effect on enhancing the mechanical strength of coatings | Can significantly enhance the mechanical strength and abrasion resistance of coatings, extending the service life of coatings |
| Particle Size Distribution | Have a relatively wide particle size distribution, which may affect the application in some fine products | Achieve a more uniform particle size distribution through special process control |
| Dispersibility | Have room for improvement in dispersibility in some application systems | Exhibit good dispersion stability in media such as coatings and inks |
| Application Fields | Widely used in industries such as construction, plastics, rubber, inks, ceramics, etc., such as coloring architectural coatings and dyeing plastic products | Mainly applied in heavy anti - corrosion fields such as bridges, ships, and steel structures, and also used in high - end industrial coatings and coil coatings |
| Cost Advantages | Abundant raw material sources, low production costs, and affordable market prices | Limited natural mica raw materials and complex chemical synthesis processes result in higher costs |
