KAOLIN is a hydrated silicate aluminium crystalline material, which is produced over millions of years by the hydrothermal decomposition of granite minerals, or ‘china clay,’ as it is widely called. The fine particulate scale, platform or lamellar particle shape and chemical inertness define the hydrous kaolin. Metakaolin is processed to create an amorphous, white mineral pozzolanic filler to be used in cement goods by kaolin calcination.We listen to the needs of our clients and provide them with an outstanding selection of Kaolin Clays. It is developed by our experts, making use of superior ingredients.

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Mineralogy           : Kaolinite with minor amounts of mica, quartz and feldspar or ilmenite

Particle Shape     : Platy, with typical aspect ratio of 20:1

Specific Gravity  :  2.6

Refractive Index : 1.56MOH

Hardness               : 2.5

Moisture                : (max %) 1.5

pH                            : 5-7.5

Calcined Kaolin

Calcined Kaolin is anhydrous silicate of aluminium made from extremely fine natural kaolin and heated in a kiln to a high temperature. Calcined Kaolin is anhydrous aluminium silicate. The cycle of calcination raises whiteness and strength, strengthens electric properties and adjusts kaolin particle size and form.

Quick View

Mineralogy: Metakaolin or amorphous, aluminium silicate (defect spinel)

Particle Shape:  Irregular, with surface voids

Specific Gravity:             2.6

Refractive Index:           1.56

MOH Hardness:             4-5

Moisture: (max %)        0.5

pH:          6-8

Physical Properties
  • High brightness
  • Non – abrasive
  • Naturally fine particles
  • Refractory, remains white after calcination
  • Weak conductivity (heat and electricity)
  • Hydrophilic and easily dispersed in water
Application
  • Adhesives & Sealants
  • Ceramics
  • Construction
  • Rubber
  • Pharmaceutical
  • Cosmetics
  • Paint & Coating
  • Paper & Board
  • Plastic Film
Grades of Kaolin

Please work with your salesperson for help in selecting the right product(s).

Calcined Kaolin

Calcined Kaolin Cosmetic Grade

Kaolin Ceramic Industry Grade

Kaolin Cosmetic Industry Grade

Kaolin Electros USP, FDA

Kaolin Paint, Coating, Ink Industry Grade

Kaolin Paper Industry Grade

Kaolin Plus White

Kaolin Rubber Industry Grade

*Detailed specification can be given on request.

To learn how our kaolin’s can benefit your application, please contact our sales team to discuss further.

We provide a wide range of custom-made formulation and Technical / Process support services to help you fit the correct grade to your product specifications.

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