calcined kaolin
What’s Calcined Kaolin?
We offer calcined kaolin with high silica (SiO₂) content, as well as calcined kaolin with high alumina (Al₂O₃) content.
Our products are widely used in ceramic bodies, rubber, papermaking, refractory materials, and as fillers, among other applications.
Calcined Kaolin Application
Calcined kaolin are widely used in ceramic bodies, rubber, papermaking, refractory materials, and as fillers, among other applications.
01
High Silica Calcined Kaolin
Calcined kaolin with high silica content offers irreplaceable advantages in ceramics, refractory materials, rubber, plastics, coatings, papermaking, and electrical insulation products, thanks to its high-temperature resistance, chemical stability, electrical insulation, low oil absorption, high whiteness, and good reinforcing properties.
02
High-alumina calcined kaolin
High-alumina calcined kaolin is indispensable in fields such as high-end refractories, specialty ceramics, precision casting, high-performance coatings, and electrical insulation products, thanks to its ultra-high refractoriness, high hardness, formation of a stable mullite phase, excellent corrosion and thermal shock resistance, high electrical insulation, and high whiteness.
03
Ultra-fine Calcined Kaolin
Ultra-fine calcined kaolin, thanks to its high specific surface area, strong reinforcing properties, excellent hiding power (capable of replacing titanium dioxide), easy dispersibility, and high whiteness, serves as a functional filler in industries such as high-end coatings, high-performance rubber and plastics, specialty inks, and others.
Customizable calcined kaolin
If you have specific requirements for the composition of our calcined kaolin, please feel free to contact us. We will do our utmost to meet your needs.
Calcined Kaolin Specification
SiO2 %≥ 63 63.5; CaO%≤ 0.5 0.25; Fe2O3 %≤ 1 0.5
Al2O3 %≤ 30 23.5
Na2O%≤ 0.2 0.14
K2O%≤ 1 0.2
Ti2O%≤ 1 0.4
L.O.I. %≤ 10 4
Whiteness≥ 80 82
pH 7-9 7
Mositure %≤ 1 0.3
Viscosity 200-260CP 220CP
Oil Absorption 38.00 – 42.00 38
Specific Gravity 2.6 2.6
Stay Connected with Us