Calcined kaolin 25kgs

(1 customer review)

Calcined kaolin is a high-performance, fine white powder derived from natural kaolin clay that has undergone a heat treatment process known as calcination. The calcination process involves heating the kaolin clay at temperatures above 1000°C, which drives off water and transforms the clay into a more chemically stable and thermally resistant material. The result is a dry, lightweight, and highly porous substance with excellent whiteness and improved hardness, brightness, and opacity.

Uses:

Calcined kaolin is used in a wide variety of industries due to its desirable physical properties:

  1. Paints and Coatings:
    • As a filler, calcined kaolin improves the texture, opacity, and smoothness of paint.
    • It is used to enhance the brightness and matte finish of paints, making it ideal for architectural paints, industrial coatings, and automotive paints.
  2. Plastics and Rubber:
    • Used as a filler in plastics to improve their strength, durability, and weathering resistance. It also helps reduce the overall cost of plastic products.
    • In rubber, calcined kaolin increases vulcanization efficiency and provides improved resilience and flexibility.
  3. Paper Industry:
    • Used as a coating pigment to enhance the smoothness, whiteness, and printability of paper products.
    • It is also employed as a filler in paper to reduce cost while maintaining desirable print quality and opacity.
  4. Ceramics:
    • Used in the production of ceramic and porcelain products where its high-temperature resistance and improved hardness are beneficial.
  5. Cosmetics and Personal Care:
    • As a bulking agent in powders, foundations, and deodorants, calcined kaolin imparts a smooth, silky texture.
    • It has absorbent properties, making it useful in products for controlling oil or moisture.
  6. Pharmaceuticals:
    • In some formulations, calcined kaolin may be used as a binding agent or excipient in tablets.
  7. Agriculture:
    • Calcined kaolin is sometimes used as an anti-fungal agent or as a protective coating on crops.
Category:

Description

The main component of calcined kaolin is kaolinite, a clay mineral composed primarily of the following chemical elements:

  • SiO₂ (Silicon Dioxide): 45-50%
  • Al₂O₃ (Aluminum Oxide): 38-42%
  • Fe₂O₃ (Iron Oxide): 0.5-2%
  • TiO₂ (Titanium Dioxide): Trace amounts
  • MgO (Magnesium Oxide): Trace amounts
  • CaO (Calcium Oxide): Trace amounts

The calcination process leads to the dehydration of kaolinite, transforming it into a more stable, thermally-resistant form. The result is a material with higher brightness, whiteness, and reflectivity, making it particularly valuable in applications requiring these properties.

Key Properties:

  • High whiteness and brightness.
  • Low abrasiveness.
  • Porous texture with good absorbency.
  • Chemical stability and resistance to heat.
  • Non-toxic and biodegradable.

These properties make calcined kaolin an essential material in many industrial applications.

1 review for Calcined kaolin 25kgs

  1. Paul –

    Calcined Kaolin has been a game-changer for our formulations! Its excellent opacity, smooth texture, and high whiteness have significantly enhanced the quality of our paints and coatings. A reliable product that consistently delivers great results!”

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