Name: UT-WHITE for Ceramics
Brand: Darson

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Kaolin for Ceramics & Tiles

Ceramic and tile production needs raw materials that give workability during forming or pressing, green strength for handling on the line, and dimensional consistency through drying and firing.

UT-WHITE works as a silica-rich clay component in earthenware, glazed wall tile, and floor tile bodies, providing workable plasticity, helping control shrinkage during drying, and supporting body strength after firing. Its fine D50 4.571 µm improves green strength before the kiln and supports even compaction during dry pressing. Fired bodies take on a cream to buff tone, so UT-WHITE is suited to glazed products where the glaze covers the body.

Supports even compaction in dry-pressed tile bodies
Increases green strength for handling before firing
Controlled shrinkage keeps tiles square and flat

Microscopic View: Sintering Process

UT-WHITE particles fusing together for strength

Performance Characteristics

Silica-Rich Matrix

High silica 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

UT-WHITE is a natural hydrous kaolin with 80.3% 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.

Brightness (ISO)80.3%

Moisture0.33%

Mean Particle Size6.115 µm

D₅₀4.571 µm

Oil Absorption46.8 g/100g

pH8.0

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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 WhitenessHigh (94%+)

Target QualityGrit-Free

Purity LevelReduced Contamination

Primary UseWhiteware & Glazed Bodies

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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 QualityLow-Iron, High-Purity

Purity LevelNear-Zero Impurities

Primary UseTechnical Ceramics

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

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