Kaolin Clay


Kaolin and China Clay

Rocks that are rich in kaolinite are known as kaolin or china clay. Kaolin or China Clay is soft, earthy, and usually white in colour. It is a type of hydrated Aluminium silicate crystalline mineral formed over many millions of years by the hydrothermal decomposition of granite rocks.

Prosopis Inc manufactures kaolin of various types, including the widely popular Hydrous kaolin, and Calcined Kaolin.

Know Your Kaolin

  • Hydrous kaolin is characterized by its fine particle size, plate-like or lamellar particle shape and chemical inertness.
  • Calcined Kaolin is an anhydrous aluminium silicate produced by heating ultrafine natural kaolin to high temperatures in a kiln.

Chemical composition of Kaolin/China Clay:

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

What Is Calcination?

Calcination is the chemical process that increases whiteness and hardness of the kaolin particles, improves their electrical properties, and alters their size and shape.

Ensuring Excellence

Kaolin/China Clay manufactured at

Prosopis Inc are used in a multiplicity of industries because of its unique physical and chemical properties. While Prosopis Inc pays attention to the various physical properties, such as shape, particle size, colour, softness, non-abrasiveness, and more, we also consistently monitor the numerous chemical properties, including a comparatively low base exchange capacity, chemical properties of the kaolin surface, relative insolubility, etc.

Processing Perfection

Prosopis Inc sources its kaolin from the superior pits in order to meet our clients’ requirements and to assure a 100% quality satisfaction. We have 2 manufacturing sites in India that manage our China clay production of both hydrous and calcined grade. We enforce constant supervision of moisture content during the manufacturing as an integral parameter, and proudly claim to manufacture China Clay with less than 0.5% moisture.

Our Industrial Solutions

Prosopis Inc is proud to offer a wide range of innovative and sustainable engineered kaolin-based solutions to help optimize performance across several industries, as mentioned below:


Prosopis Inc Grade



Prosopis Inc – Customised kaolin finds an integral application in paper manufacturing, especially in coated paper, because of its improved surface functionality when used as fillers or coating pigments. It enables papermakers to cut costs and foster more sustainable processes. Prosopis Inc made china clay is utilized to impart gloss, smoothness, printability and improved barrier performance in paper and packaging applications.


The high fusion temperature and white firing characteristics of Prosopis Inc -Engineered grade of China Clay make it particularly suitable for the manufacture of sanitary ware, table ware, wall and floor tiles and refractories.


Kaolin processed by Prosopis Inc are used as 100% natural ingredients for face creams, face masks and cosmetics. They are appreciated for their superior capabilities of mattifying skin, and absorbing sebum and other impurities. Prosopis Inc Guarantees a 100% nil presence of asbestos and cadmium and adheres to all safety standards and limits for its usage in the cosmetic industry.


Prosopis Inc – Regulated china clay and calcined kaolin are found to improve the mechanical properties, porosity and appearance of various types of concrete and cement, providing an excellent alumina source for the production of fiberglass.


China Clay is an excellent natural opacifier and a partial replacement for titanium dioxide. Prosopis Inc – Designed Kaolin has been proved time and again to stand on these parameters and acts as an ideal additive in high gloss paints. Prosopis Inc – mechanised Kaolin is also used as an extender and flattening agent in paints.


Kaolin-grades processed at Prosopis Inc are used for filling rubber to improve its mechanical strength and resistance to abrasion.


Kaolin manufactured at Prosopis Inc facilities is used by reputed pharmaceutical manufactures for treating ailments, such as, mild-to-moderate diarrhoea, severe diarrheal (dysentery), and cholera. Prosopis Inc made kaolin is also used to relieve soreness and swelling inside the mouth caused by radiation treatments. It also acts as a filler, as lubricants in manufacturing pills; disintegrants; anticaking and thickening agents; binders and diluents; emulsifiers; and carriers of biologically active molecules for improving drugs bioavailability

Prosopis Inc is proud to present its grades in terms of light, IP/BP/EP/JP/USP Grades.

Soap and Detergents

Prosopis Inc – Curated Kaolin is used essentially as a filler in soap production. It also gives the structure and acts as a riser, but the most important function of kaolin is to reduce cost of production.