Product Description
Iron Oxide Red for Paint
I. Chemical Properties
-
Excellent Stability
- Strong chemical corrosion resistance: It is not easy to react with common chemicals such as acids, alkalis, and salts, and is not prone to deterioration in humid or industrial environments.
- Outstanding weather resistance: It can resist the impact of natural factors such as ultraviolet rays, oxygen, and temperature changes. Even when exposed outdoors for a long time, it is not easy to fade, chalk, or decompose, making it particularly suitable for scenarios such as architectural coatings and outdoor building materials.
- High oxidation resistance: As an oxidation product of iron itself (e.g., Fe2O3, Fe3O4, etc.), it has stable chemical properties and is not easy to be further oxidized or reduced.
-
Non-toxicity and Environmental Friendliness
The main component is natural or synthetic iron oxide, which does not contain harmful heavy metals . It meets environmental protection standards and can be used in fields such as food contact materials and coatings for children's toys (subject to specific grade requirements).
II. Physical Properties
-
Diverse and Vivid Colors
It covers various color systems including red, yellow, brown, and black:
- Iron oxide red (Fe2O3): Presents bright red, deep red, or purplish red, with strong hiding power;
- Iron oxide yellow (FeO(OH)·nH2O): Ranges from lemon yellow to brownish yellow, with bright tones;
- Iron oxide brown (a mixture of Fe2O3 and FeO): Varies from light brown to dark brown, with natural color;
- Iron oxide black (Fe3O4): Is pure black or grayish black, with strong tinting strength.
-
Particle Characteristics
- Controllable particle size: Generally 0.1~10 microns, with particle morphologies mostly acicular, spherical, or flaky, which can be adjusted through processing to affect the dispersibility and hiding power of the pigment.
- Moderate density: Usually between 4.0~5.2 g/cm³, with slight differences depending on crystal form and composition.
-
Hiding Power and Tinting Strength
- Strong hiding power: It can effectively cover the background color of the coated surface, reducing the need for coating thickness;
- Stable tinting strength: When mixed with other pigments or media (such as coatings, plastics), it can disperse evenly and maintain stable coloring effects, not easy to fade or migrate.
III. Application-Related Properties
-
Good Dispersibility
It has good dispersibility in various media such as water, oil, and resin, and is easy to mix with substrates such as coatings, plastics, and rubber. After dispersion, its performance is stable and it is not easy to agglomerate.
-
Excellent Heat Resistance
It has outstanding high-temperature resistance and is not easy to decompose or discolor at relatively high temperatures (such as 200~300ºC in plastic processing), making it suitable for high-temperature processing scenarios such as plastics, ceramics, and enamel.
-
High Cost-Effectiveness
The raw materials are widely available (natural iron ore or artificial synthesis), the production process is mature, and the price is relatively low. Its cost performance is higher than that of many organic pigments or other inorganic pigments.
Summary
Iron oxide pigments, with core properties such as strong weather resistance, rich colors, environmental friendliness and non-toxicity, and low cost, are widely used in fields such as architectural coatings, inks, plastics, rubber, ceramics, and building materials (e.g., floor tiles, colored tiles). They are one of the most used inorganic pigments in industry. Their performance can be further optimized through surface treatment (such as coating) to adapt to the needs of different media.
Specification
Company profile
Exhibition
Packing & Delivery
FAQ
Audited Supplier 
){kind=link}