Name: Kaolin for Paint & Coatings
Brand: Darson

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Kaolin for Paint & Coatings

In coating formulations, mineral extenders occupy volume that would otherwise require more expensive resin and pigment. UT-WHITE hydrous kaolin at D50 4.571 µm works as a functional extender in primers, undercoats, wall putty, cement paint, and mid-tone architectural coatings.

Its plate-like particles improve pigment spacing and film build, while its low oil absorption (46.8 g/100g) allows high loading without pushing up binder demand. UT-WHITE brings filler-grade whiteness at 80.3% ISO to primers, undercoats, putty, and mid-tone architectural coatings, at a cost per tonne that works at high loading.

Reduces formulation cost through mineral volume replacement
Improves film build and flow in primers and undercoats
Compatible with water-based and solvent-based systems

The TiO₂ Spacing Effect

UT-WHITE platelets support pigment spacing in the film

Performance Characteristics

Pigment Spacing

Plate-like particles occupy space between TiO₂ particles, supporting hiding power in the same formulation.

Low Oil Absorption

At 46.8 g/100g, UT-WHITE allows high loading without raising binder demand.

Cost Reduction

Mineral extender replaces higher-cost formulation volume.

Recommended Grades

Grades for paint and coatings formulations, focused on cost-reducing extension in primers, undercoats, and architectural coatings.

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. Works as a functional extender in primers, undercoats, wall putty, cement paint, and mid-tone architectural coatings.

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, high-brightness grade for interior and exterior coatings. Consistent particle size distribution produces a smooth paint film with good sheen uniformity and scrub resistance.

ProcessPrecision Washing

Target WhitenessHigh (94%+)

Target QualityGrit-Free

Purity LevelReduced Contamination

Primary UseInterior & Exterior Extender

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Coming Soon

UT-ULTRA

Our upcoming calcined grade with maximised opacity, the ideal functional TiO₂ extender for high-end specialty coatings, industrial primers, and heat-resistant paints demanding near-zero metallic impurities.

ProcessFull Calcination

Target WhitenessExtremely High

Target QualityLow-Iron, High-Purity

Purity LevelNear-Zero Impurities

Primary UseHigh-Opacity TiO₂ Extender

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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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