Calcined Kaolin

Product Description

Calcined Kaolin is produced by calcining high-purity kaolin at controlled temperatures to obtain excellent whiteness, optimized particle size distribution, low impurity levels, and high chemical inertness. It is widely used in ceramics, high-end coatings, papermaking, refractory materials, rubber, plastics, and cosmetics.

Key Properties

✓High whiteness and brightness

✓Fine, controlled particle size distribution

✓Low abrasion for high-speed papermaking & coatings

✓Excellent opacity and tinting strength

✓Enhanced chemical inertness

✓High thermal stability after calcination

✓Good reinforcement effect in polymers

Typical Applications

Ceramics (Body & Glaze)

Improves whiteness and vitrification; enhances mechanical strength.

Paper Coating Grades

Improves printability, smoothness, and ink holdout; high opacity for premium coated paper.

High-End Coatings & Paints

Excellent gloss, hiding power, and matt-finish control.

Refractory Materials

Used as an alumina source; improves thermal stability.

Rubber & Plastics

Reinforcing filler; improves wear resistance and dispersion.

Cosmetics

Soft skin feel, high purity, and excellent whiteness.

Chemical & Physical Properties

Application	Whiteness (%)	Al₂O₃ (%)	Fe₂O₃ (%)	−2 µm (%)
Ceramics (Body)	≥75	≥34	≤0.8	≥70
Papermaking (Coating)	≥85	≥35	≤0.5	≥80
High-End Coatings	≥90	≥38	≤0.3	≥90
Refractory Materials	≥65	≥38	≤1.0	≥60
Rubber & Plastic Compounds	≥75	≥30	≤1.2	≥50
Cosmetics	≥92	≥35	≤0.1	≥95

−2 µm ≥ 50–95%. Tailored particle size distribution available based on customer requirements.

Available Grades

Customized grades available on request:

Available Particle Sizes

Aggregates (mm)

Powders (mesh)

Customized particle size distributions for ceramics, coatings, and refractory applications are available.

Advantages vs Hydrous Kaolin

✓Higher brightness

✓Better opacity / hiding power

✓Lower abrasion

✓Improved rheology in coatings

✓Thermal inertness

Packaging & Storage

Bags

25 kg paper or woven bags

Jumbo Bags

500–1000 kg

Optional

Palletized & shrink-wrapped

Keep dry and avoid moisture absorption.
Store in a ventilated warehouse.
Reseal bags after opening.
Custom packing available.