Calcined Kaolin Powder


Calcined Kaolin Powder

Calcinated Kaolin for Paints, Coating & Pigments are heat processed into high-quality calcined pigments. These are used as pigment extender for Paints, polymers and plastics. The manufacturing process is designed for close control of the formation of the finished porous aggregate structure, leading to increased performance at reduced cost and improving the performance of paints, plastic, paper and rubber. It is a high brightness clay, with exceptional light scattering properties which give rise to the product’s excellent opacifying properties, making it an ideal TiO2 extender (can replace 20% TiO2) in many industrial applications.

Some of the properties of Calcined Kaolin Powder are:

  • Appearance: White powder
  • Particle size: 2 microns median
  • Specific gravity: 2.6-2.7
  • Refractive index: 1.6-1.62
  • Mohs hardness: 2-2.5
  • pH value: 6.0-7.5
  • Oil absorption: 50-60 g/100g
  • Brightness: 93-95
  • Loss on ignition: 12-14%
  • Moisture: 0.5% max.
  • Calcined Kaolin Powder has a wide range of applications due to its unique properties. Some of the common applications are:

  • Ceramics: Calcined kaolin powder is extensively used in the production of ceramics such as porcelain, tableware, and sanitary ware. It imparts excellent strength, whiteness, and translucency to the ceramic body.
  • Paints and Coatings: It is used as a pigment extender and filler in paints and coatings to enhance opacity, brightness, and durability. It also provides improved resistance to abrasion and weathering.
  • Plastics and Rubber: Calcined kaolin powder is used as a reinforcing filler in plastics and rubber to improve tensile strength, elongation, and abrasion resistance.
  • Paper and Packaging: It is used as a coating pigment in the paper industry to enhance surface properties such as gloss, smoothness, and printability. It also improves the strength and stiffness of paper and paperboard.
  • Adhesives and Sealants: Calcined kaolin powder is used as a filler in adhesives and sealants to improve strength, flexibility, and adhesive properties.
  • Cosmetics: It is used as an ingredient in cosmetics such as powders, foundations, and eye shadows to impart smoothness, softness, and opacity to the product.
  • Pharmaceuticals: Calcined kaolin powder is used as an excipient in pharmaceutical formulations to improve flowability, compressibility, and dissolution rate. It is also used as a coating agent for tablets and capsules.
  • Construction Materials: It is used in the production of construction materials such as cement, concrete, and plaster to improve strength, workability, and durability.
  • The primary component of kaolin is the clay mineral kaolinite, which has the chemical formula Al2Si2O5(OH)4. Other minerals and compounds may be present in smaller amounts, depending on the source of the kaolin and the processing method.

    • Plot No. 1, 4, MIA Road, behind jain irrigation, Matsya Industrial Area, Alwar, Rajasthan 301030
    • +91 9829097799
    • info@ajayexports.in

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