Finding a reliable calcined kaolin manufacturer in India is important for industries that require consistent brightness, particle size, thermal stability, and dependable mineral performance. Calcined kaolin is widely used in paints and coatings, ceramics, paper, rubber, plastics, cables, adhesives, and other industrial applications where a high-performance mineral filler or functional additive is required.
Puresil India manufactures and supplies high-quality calcined kaolin produced through controlled thermal processing of refined kaolin. The process removes structural water from the kaolin and changes its mineral structure, creating an anhydrous, amorphous alumino-silicate with improved brightness, hardness, opacity, and thermal stability.
What Is Calcined Kaolin?
Calcined kaolin is a processed form of kaolin clay obtained by heating refined kaolin at controlled high temperatures. Puresil India’s product information specifies a calcination range of approximately 900°C to 1100°C, depending on the desired product characteristics and application requirements.
Unlike untreated kaolin, calcined kaolin has lower loss on ignition (LOI), improved opacity, high brightness, and enhanced performance in applications exposed to heat or demanding processing conditions.
Technical Specifications of Calcined Kaolin
Puresil India offers different calcined kaolin grades designed around application requirements. Available grade specifications include PI-9.1, PI-0.15, PI-1.15, PI-2.15, PI-Glow, and PI-Glitter.
|
Technical Parameter |
Typical Grade Range |
|
ISO Powder Brightness |
91 ± 1% to 95 ± 1% |
|
Bulk Density |
280–380 g/L |
|
Particle Size Below 2 Micron |
60–90% |
|
LOI |
0.5% Max |
|
Residue |
Up to 0.2% Max, depending on grade |
These specifications demonstrate the availability of different grades for applications requiring varying levels of brightness, fineness, dispersion, and bulk density.
Puresil India also highlights ISO brightness above 90–95%, specialized particle sizes below 2 microns, low LOI, and consistent bulk density as important technical advantages of its calcined kaolin.
Applications of Calcined Kaolin
Calcined kaolin is a versatile industrial mineral with applications across several manufacturing sectors.
Paints and coatings: It can function as a matting agent and TiO₂ extender, helping manufacturers achieve desired opacity and surface characteristics.
Ceramics, tiles and sanitaryware: Calcined kaolin is used as a raw material in glaze applications and can contribute to the required processing and finished-product properties.
Paper: Its brightness and fine particle distribution make it suitable for paper coating applications where surface appearance and gloss are important.
Rubber and plastics: Calcined kaolin works as a functional filler, supporting consistent formulation and product performance.
Cable compounds and insulation: It can be used in low-smoke, zero-halogen cable insulation materials.
Adhesives and sealants: The material can provide stiffness and thixotropic properties.
Why Choose Puresil India as Your Calcined Kaolin Supplier?
Puresil India focuses on consistent product quality, customized grades, and dependable supply for domestic and international customers. Its calcined kaolin grades can be tailored according to factors such as brightness, particle size, and application requirements.
The company also has access to large kaolin reserves and export logistics through the Kandla and Mundra port region, supporting bulk and international supply requirements.
If you are looking for a calcined kaolin manufacturer in India for paints, ceramics, paper, rubber, plastics, cables, adhesives, or other industrial applications, Puresil India can provide application-oriented grades and supply solutions.
Contact Puresil India to discuss your required calcined kaolin grade, technical specifications, quantity, and delivery requirements.
Frequently Ask Questions
Calcined kaolin is kaolin clay that has been thermally processed at high temperatures to remove structural water and modify its mineral structure. It offers improved brightness, opacity, hardness, and thermal stability.
Puresil India manufactures and supplies calcined kaolin for industrial applications, with grades available according to brightness, particle size, and application requirements.
Calcined kaolin is generally produced through controlled heating. Puresil India specifies approximately 900°C to 1100°C for its calcination process, depending on product requirements.
It is used in paints and coatings, ceramics, tiles, sanitaryware, paper, rubber, plastics, cable insulation, adhesives, and sealants.
Depending on the grade, Puresil India’s listed specifications indicate ISO powder brightness ranging from approximately 91 ± 1% to 95 ± 1%.
Different grades are available with approximately 60–90% of particles below 2 microns, depending on the grade.
The listed grades specify LOI of up to 0.5% maximum, supporting applications where low loss on ignition is important.
Yes. Puresil India states that grades can be tailored according to requirements such as brightness, particle size, and intended application.
Yes. Puresil India supplies calcined kaolin to domestic and international markets and has export logistics supporting global customers.
Contact Puresil India with your application, required grade, quantity, technical specifications, and destination. The manufacturer can help identify a suitable grade and provide supply details.
