Industrial Applications

Kaolin for Ceramics

A silica-rich clay component for glazed ceramic bodies, earthenware, and glazed tiles.

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Kaolin for Ceramics

In ceramic production, raw materials must provide the right balance of workability for forming, green strength for handling, and dimensional consistency after firing.

UT-WHITE works as a silica-rich clay component (SiO₂ 72.2%) in tile and earthenware bodies — providing workable plasticity for forming, helping control shrinkage during drying, and supporting body strength after firing. Its fine D50 4.571 µm improves green strength for handling before the kiln. Note: with Fe₂O₃ ~1.78%, fired bodies take on a cream to buff tone; UT-WHITE is best suited for glazed ceramic products where the body color is not critical.

  • High Fired Whiteness (L* > 92%)
  • Increases Green Strength
  • Low shrinkage rate for dimensional control

Microscopic View: Sintering Process

Before Firing (Loose) Heat 1200°C After Firing (Fused) Mullite Phase

UT-WHITE particles fusing together for strength

Performance Characteristics

Silica-Rich Matrix

72.2% SiO₂ supports fired strength development; UT-WHITE functions as both a clay and silica source in earthenware and glazed tile body formulations.

Green Strength

Fine D50 4.5 µm particle size provides workable plasticity that improves green strength and reduces cracking during drying before firing.

Low Shrinkage

Helps control shrinkage during drying and firing for consistent dimensions in glazed tiles and earthenware products.

Recommended Grades

Selected grades tailored for ceramic applications, from glazed tiles and earthenware to specialty powder formulations.

UT-WHITE High Brightness Kaolin

UT-WHITE

UT-WHITE is a natural hydrous kaolin with 96.6% ISO brightness, ground to D50 4.571 µm using alumina ball milling to prevent iron contamination. Contributes whiteness and flux control as a blend component in ceramic tile body and glaze formulations.

Brightness96.6%
SiO272.2%
Al2O313.7%
pH Value8.0
Oil Adsorption (g/g)0.468
Median Size (D50)4.571 μm
Particle Size400-1200 Mesh
Download Spec Sheet
UT-WASH Precision Kaolin
Coming Soon

UT-WASH

A washed grade with higher Al2O3 content for superior fired strength. Grit-free purity ensures defect-free surfaces in glazed ceramics and earthenware requiring low grit count and tighter particle distribution.

ProcessPrecision Washing
Target GritZero (0.000% on 400 Mesh)
Target WhitenessHigh (94%+)
Purity LevelLess Contamination
Primary UseCeramics & Precision Coatings
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UT-ULTRA Calcined Kaolin
Coming Soon

UT-ULTRA

Our upcoming calcined grade fired at high temperatures to maximise opacity and structural hardness. Designed for advanced technical ceramics and specialty refractory applications requiring near-zero impurities.

ProcessFull Calcination
Target WhitenessExtremely High
Target QualityMedical Grade Sterile
Impurity LevelZero Contamination
Primary UseTechnical Ceramics
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Start Your Inquiry

Factory direct pricing for local and international orders. Darson exports kaolin FOB Bangkok to buyers across Thailand, Bangladesh, Malaysia, India, and Southeast Asia.

We will contact you back as soon as possible.

Inquire: sales@darson.co.th
Have a chat: +66 65 393 2426
Come visit: Nakhon Pathom, Thailand
Darson