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  • Cobalt Aluminate Blue (PB28)

  • Cobalt Aluminate Blue (PB28)

    Product Information

    ParameterCatalog Number
    Tint (1:3)
    C.I.NamePigment Blue 28Pigment Blue 28Pigment Blue 28
    C.I. No.773467734677346
    Pigment ChemicalCo-AlCo-AlCo-Al
    Specific Gravity4.24.24.2
    Mean Particle Size (μm)
    Oil Absorption (g/100g)~30~32~32
    PH Value7-107-107-10
    Heat Resistance (°C)>500>500>500
    Acid Fastness (1-5)555
    Alkali Fastness (1-5)555
    Light Fastness (1-8)888
    Weather Fastness (1-5)555

    *The colors shown in the table are only approximate, please test and confirm before use.

    Main Characteristics

    • Spinel structure
    • Reddish blue shade
    • Easy to disperse
    • Excellent dimensional stability
    • Non-bleeding and non-migratory
    • Near-infrared reflectance (cool pigment)
    • Recommended for use with high performance organic pigments in opaque formulations

    Main Applications

    Cobalt aluminate blue is widely used in various industries due to its unique properties and versatility. Its main applications include:

    • Coatings and Paints

    Cobalt aluminate blue is often used to formulate paints and coatings to provide a rich and stable blue color. It can be used for both indoor and outdoor applications.

    • Plastics and Polymers

    This pigment is used in the plastics industry to color plastic products, including toys, packaging materials and various molded products.

    • Textiles

    In the textile industry, this pigment may be used for dyeing fabrics, contributing to the blue hues in clothing and other textile products.

    • Printing Inks

    Cobalt aluminate blue is also widely used in printing inks. It can improve the color saturation and surface gloss of printed materials, and enhance the ink's coverage and water resistance.

    • Construction Materials

    Cobalt aluminate blue can be incorporated into cement, concrete, mortar and other outdoor construction materials to add color and beauty to the building structure.

    Cobalt Aluminate Blue (PB28)

    Alfa Chemistry is a specialized supplier of complex inorganic color pigments. In addition to catalog products, we can also provide you with product customization services. If you have any needs, please contact us immediately.

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