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.

< 7%
Shrinkage

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

92%
Whiteness

Ideal for super-white porcelain tiles and engobe formulations.

Our Product Solutions for Tiles

Standard Grade Kaolin

Standard Grade

UT-CLAY Series

Economical choice for red or white body floor tiles. Good plasticity and strength.

SiO248.5%
Al2O336.0%
MORGood
Download Spec Sheet
RECOMMENDED
High Grade Kaolin

High Grade

UT-WHITE Series

High Alumina content for Porcelain (Granito) tiles. Provides a white body and structural integrity.

SiO248.5%
Al2O336.0%
Whiteness> 92%
Download Spec Sheet
Premium Grade Kaolin

Premium Grade

UT-ULTRA Series

For Engobes (White slip) coating. High opacity to cover the body color before glazing.

SiO248.5%
Al2O336.0%
Whiteness> 94%
Download Spec Sheet

Frequently Asked Questions

Why is Kaolin important for Porcelain tiles?

Porcelain tiles require very high firing temperatures. Kaolin provides the necessary Alumina levels to maintain the tile's shape and strength at these temperatures without melting or deforming.

What is "Engobe" and which grade should I use?

Engobe is a white clay slip applied between the tile body and the glaze. It hides the body color and ensures the glaze adheres well. We recommend our Premium grade (UT-ULTRA) or High Grade (UT-WHITE) grades for high-opacity engobes.

Can your clay handle Large Format Slabs?

Yes. Large slabs are prone to cracking. Our kaolin offers excellent "Green Strength" (MOR), allowing large slabs to be moved safely along the production line before firing.

Start Your Inquiry

Factory direct pricing for local and international orders.

We will contact you back as soon as possible.

DARSON CO., LTD
Kampaengsaen, Nakhon Pathom, Thailand