Industrial Applications

Kaolin for Tiles

Superior strength and dimensional stability for Porcelain and Ceramic tiles.

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Kaolin for Tiles

In modern tile manufacturing, especially for large-format slabs and porcelain tiles, the raw material must withstand immense pressure during pressing and high heat during firing without warping.

Kaolin provides the essential Alumina content that forms the structural skeleton of the tile. It ensures high Modulus of Rupture (MOR) (Green Strength), preventing tiles from cracking as they move along the conveyor belts before firing.

  • Prevents warping and bending
  • High whiteness for Porcelain (Granito) bodies
  • Compatible with fast-firing cycles

Cross-Section: Glazed Porcelain Tile

Tile Body (Bisque) Kaolin + Feldspar + Clay Engobe Layer (White Base) Glaze & Design Structural Strength (Provided by Kaolin) Opacity & Whiteness

Kaolin supports the body structure and whitens the engobe layer

Performance Characteristics

High Green Strength

Prevents breakage during pressing, drying, and transport along the production line.

Low Shrinkage

Low shrinkage ensures tiles remain perfectly square and flat (Planarity).

High Whiteness

With over 96% whiteness, it's an ideal for super-white porcelain tiles and engobe formulations.

Recommended Grades

Grades selected for floor and wall tile production, balancing fired whiteness, mechanical strength, and dimensional stability at scale.

UT-WHITE High Brightness Kaolin

UT-WHITE

A high-volume tile body kaolin providing the plasticity needed for consistent pressing and extrusion. Its controlled shrinkage and reliable mineralogy produce dimensionally stable tiles with clean, bright fired surfaces.

SiO272.2%
Al2O313.7%
Whiteness96.6%
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

UT-WASH

A washed, grit-free grade for premium glazed and polished tiles. Higher alumina content supports a stronger tile body, reducing warpage and improving resistance to crazing in the glaze layer.

SiO267.6%
Al2O316.8%
Whiteness94.1%
pH Value7.6
Oil Adsorption (g/g)0.511
Median Size (D50)4.233 μm
Particle Size600-1200 Mesh
Download Spec Sheet
UT-ULTRA Premium Calcined Kaolin

UT-ULTRA

Our upcoming calcined grade engineered to maximise opacity and surface brightness in the tile glaze layer itself. Ideal for ultra-white, high-gloss large-format tiles where visual uniformity is critical.

ProcessFull Calcination
Target WhitenessExtremely High
Target QualityMedical Grade Sterile
Impurity LevelNear Zero
Primary UseGlaze & Large-Format Tiles
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Factory direct pricing for local and international orders.

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sales@darson.co.th
Nakhon Pathom, Thailand
Darson