Industrial Applications

Kaolin for Adhesives & Sealants

Controlling flow, preventing slump, and filling gaps for stronger bonds.

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Kaolin for Adhesives & Sealants

Adhesives and sealants need to flow easily when pumped but stay in place (not drip) once applied. This property is called thixotropy.

UT-WHITE modifies the rheology of adhesives. Its fine platelets stack up to build viscosity at rest (preventing slump on vertical surfaces) but slide past each other under pressure (easy application). It also prevents adhesive from soaking too deeply into porous substrates like cardboard.

  • Prevents Slump & Drip
  • Controls Penetration (Holdout)
  • Lowers Formulation Cost

Gap Filling Mechanism

Substrate A Substrate B Viscosity Build-up

UT-WHITE builds body to bridge gaps without dripping

Performance Characteristics

High Viscosity

Increases body and texture in water-based and solvent-based adhesives.

Fast Tack

Helps improve initial grab strength, crucial for packaging glues.

Inert Chemical

Stable in starch, latex, and synthetic resin systems.

Recommended Grades

Grades for adhesive and sealant formulations, controlling rheology, reducing cost, and improving thermal and moisture resistance.

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. Controls rheology and prevents sag in water-based and solvent-based adhesive systems for packaging and construction applications.

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 fine, washed grade for high-performance adhesives where low grit and consistent particle size are critical. Used in structural epoxies and pressure-sensitive adhesives to improve tack, cohesive strength, and resistance to humidity.

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

UT-ULTRA

Our upcoming calcined grade for specialty industrial adhesives and thermal-interface materials. High surface area and near-zero metallic impurities improve thermal conductivity and ensure compatibility with sensitive electronic substrates.

ProcessFull Calcination
Target WhitenessExtremely High
Target QualityMedical Grade Sterile
Impurity LevelZero Contamination
Primary UseThermal-Interface & Electronic Adhesives
Request Early Access

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