Iron Oxide Paint Colors

Depending on how iron oxide is prepared, it can take on different colors: yellow, red, brown and black. The different colors of iron oxide depend on the oxidation state of the iron atoms, with Fe+3 being brown and Fe+2 being red. The different colors of iron oxide also depend on the amount of water added to the iron atoms (iron hydroxide). This variation produces yellow, red, brown and black colors.

Characteristics of Iron Oxide Pigments

Iron oxide pigment is a large-size and wide range of inorganic color pigment. It is widely used. It is widely used in building materials, coatings, inks, rubber, plastics, ceramics, glass products, hardware glass polishing, theatrical oil painting pigments, paints, cosmetics, pharmaceutical coloring, photocopying materials, catalysts, electronic industry and magnetic recording materials for recording and logging. Video recording.

Iron oxide pigments have excellent pigment permeability:

High chemical stability and physical fastness:

1, alkali resistance: very stable to any concentration of alkali and other types of alkali, especially cement and lime mortar commonly used in construction, and will not pulverize cement building components without affecting their strength. .

2、Acid resistance: it has some resistance to general weak and dilute acids, but it can also be gradually dissolved in strong acids, especially under the conditions of elevated temperature and thicker.

3、Light resistance: the color does not change under strong sunlight.

4, heat resistance: stable within a certain temperature limit, beyond the temperature limit when the color, gloss began to change. As the temperature rises, the degree of change becomes more and more significant. The temperature limit of each variety is as follows:

Iron oxide yellow such as iron oxide yellow 313, iron oxide yellow 920 at 130 ℃ above the gradual discoloration to red

Iron oxide red such as iron oxide red 120, iron oxide red 130, iron oxide red 190, etc., above 300 ℃ gradually change color to deep red.

Iron oxide violet at 400 ℃ above the gradual discoloration to deep red

Iron oxide black such as iron oxide black 318, iron oxide black 722, etc. above 100 ℃ gradually change to dark red.

Iron oxide brown above 130 ℃ gradually turned red

Iron oxide green over 200 ℃ gradually turned into dark red

5, weather resistance: not affected by cold, hot, dry, wet atmosphere and other climatic conditions.

6, scaling air resistance: stable in any scaling gas, such as hydrogen sulfide, carbon monoxide, sulfur dioxide, hydrogen chloride, nitric oxide and other gases.

7, water, oil and solvent resistance: insoluble in water, various mineral oils, vegetable oils and organic solvents such as ether, ester, ketone, and no penetration phenomenon.

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Because iron oxide pigments are available in a variety of oxidation states, a wide range of colors can be achieved through different formulations and treatments, from bright to deep.

Iron oxide pigments have excellent covering ability, which can effectively hide the color or imperfections of the underlying layer when covering the surface.

Compared to some other pigments, iron oxide pigments are often considered an environmentally friendly choice as they contain no heavy metals or other harmful substances.

Iron oxide pigments are widely used in coatings, paints, plastics, rubber, ceramics, asphalt, cement and other fields to provide color stability and uniform tinting effect.

$Iron oxide pigments remain stable at high temperatures and are therefore often used in products that are resistant to high temperatures, such as ceramics or refractory materials.$

Iron oxide pigments remain stable at high temperatures and are therefore often used in products that are resistant to high temperatures, such as ceramics or refractory materials.

Iron oxide pigments are mainly composed of iron and oxygen elements. Depending on the oxidation state, they can be formed into a variety of colors, such as red, yellow, brown and black.

Iron oxide pigments are widely adopted for their stability, weather resistance and versatility, and their relatively low cost makes them a cost-effective choice for making a wide range of color products.

Iron oxide pigments maintain color stability during the preparation process and do not change color when exposed to heat or light.

Iron oxide pigments have excellent weathering resistance, with high resistance to light, chemicals and climate change, and are not easily faded or discolored.

Iron oxide pigments are extremely light stable and can therefore be exposed to outdoor environments for long periods of time without noticeable color fading.

Clear colors and unique shades

Iron Oxide pigment has a very clear, pure color and does not use other organic or inorganic pigments to add luster. Although it is not as bright as some organic or other pigments, iron oxide pigments have a unique style of hue. Its soft, harmonious tones are pleasing to the eye and are suitable for residential, public, indoor and outdoor painting. Its solemn tone is especially suitable for luxurious buildings and grand, stately construction projects.

Excellent economic benefits

Iron oxide pigment has high coloring power, fine and uniform particle size, which ensures its value of use, coupled with lower sales price, which ensures the economic effect of users.