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Kaolin China Clay

Al2Si2O5(OH)4

The finest white clay mineral — known for exceptional whiteness, plasticity, and chemical purity for paper, ceramics, and countless industrial applications.

88%+ Brightness
Mohs 2-2.5
Natural
ISO Certified
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20+Grades
12+Industries
45+Countries
35+Years
Kaolin - 20 Microns
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Product Overview

About Kaolin

Understanding the fundamentals of kaolin

Product Overview

The Premier White Clay Mineral

Kaolin (Al₂Si₂O₅(OH)₄) is a hydrated aluminum silicate clay formed by weathering of feldspar-rich rocks, prized for its exceptional whiteness, fine particle size, and chemical inertness.

With its unique platy structure and excellent rheological properties, kaolin is indispensable in paper coating, ceramics, paints, rubber, and pharmaceutical applications worldwide.

Primary Deposits Secondary Deposits Sedimentary
Al2Si2O5(OH)4

Chemical Formula

Kaolin

Chemical Properties
  • Molecular Weight258.16 g/mol
  • Al2O3 Content36-38%
  • SiO2 Content45-47%
  • pH Value4.5 – 7.0
Physical Properties
  • Mohs Hardness2-2.5
  • Brightness85 – 92%
  • Specific Gravity2.58 – 2.63
  • Oil Absorption35 – 55
88%+
Brightness
1-5μm
Particle Size
99%+
Purity
ISO
Certified

Naturally Occurring

Environmentally safe natural mineral.

Non-ToxicNaturalSustainable
Kaolin clay deposits - natural white clay
Natural Source

From Ancient Clay Beds
to Modern Applications

Mined from premium clay deposits and refined through advanced processing for consistent quality and performance.

2 Billion+Tons Global Reserve
35+Years Processing
8+Mining Sites
High brightness
Fine particle size
Chemically inert
Global supply
Consistent quality
Advantages

Key Benefits

Why kaolin is the preferred choice for industry leaders worldwide

01

High Brightness & Whiteness

Exceptional natural brightness index making it ideal for paper coating and premium applications.

02

Fine Particle Size

Naturally fine particles provide smooth texture and excellent coverage in coatings and fillers.

03

Excellent Plasticity

Superior forming properties in ceramic bodies and binding applications.

Kaolin
88%+Brightness
6Key Benefits
12+Industries
04

Chemical Inertness

Stable and non-reactive with most chemicals ensuring product integrity.

05

Cost Effectiveness

Economical filler and extender reducing total formulation costs.

06

Excellent Opacity

Provides hiding power and opacity in paper and coating applications.

Industrial manufacturing excellence
World Class Quality

Industry-Leading Performance
at Every Scale

Trusted by leading manufacturers across 50+ countries for consistent, high-purity kaolin that meets international standards.

ISO 9001 EcoVadis Gold REACH Compliant Lab Certified
ISO Certified
Global Supply
Lab Tested
Industry Leading
Product Range

Available Grades

Comprehensive range of kaolin grades for diverse industrial applications

Precision quality testing of kaolin grades

Precision Engineered Grades

Every grade is meticulously tested in our state-of-the-art laboratories to meet the most demanding industrial specifications worldwide.

Brightness88%+
Particle Size1-5μm
Purity99%+
CertifiedISO
Most Popular
Paper

Paper Coating Grade

High Brightness

Premium kaolin for paper coating with exceptional brightness and gloss development.

  • 92%+ Brightness
  • Fine particles
  • Low abrasion
Learn More
Ceramic

Ceramic Grade

High Plasticity

Superior plasticity kaolin for porcelain, sanitaryware, and specialty ceramics.

  • High plasticity
  • Low iron
  • Excellent firing
Learn More
Paint

Paint & Filler Grade

Extender

Cost-effective extender for paints, coatings, and rubber applications.

  • Good coverage
  • Easy dispersion
  • Low cost
Learn More
Calcined

Calcined Kaolin

Heat Treated

Thermally processed for enhanced brightness, opacity, and performance.

  • Maximum brightness
  • High opacity
  • Improved properties
Learn More
Product Statistics
4Grade Categories
20+Product Variants
1-10Micron Range
Request Custom Grade
ISO 9001 Certified Global Delivery Technical Support Custom Grades
Applications

Industries & Applications

Versatile applications across diverse industry verticals worldwide

Paper Industry

Paper Industry

Coating and filler applications for improved printability, brightness, and smoothness.

CoatingFillerPrinting
92%Brightness
Ceramics

Ceramics

Essential raw material for porcelain, sanitaryware, tableware, and technical ceramics.

PorcelainSanitarywareTiles
40%Loading
Paints & Coatings

Paints & Coatings

Extender pigment and rheology modifier for decorative and industrial paints.

DecorativeIndustrialPrimers
20%Extension
Rubber Industry

Rubber Industry

Reinforcing filler in rubber compounds for improved mechanical properties.

TyresMoldedFootwear
25%Loading
Plastics

Plastics

Functional filler in polymer compounds for improved surface and processing.

PVCPPEngineering
15%Filler
Pharmaceuticals

Pharmaceuticals

Excipient in pharmaceutical formulations and cosmetic applications.

TabletsCosmeticsPersonal Care
USPGrade
12+Industries
20+Applications
45+Countries
800+Customers

Need a Custom Solution?

Our experts help you find the perfect grade

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Our Promise

Why Choose 20 Microns?

World-class quality minerals backed by decades of expertise & innovation

20 Microns state-of-the-art manufacturing facility

Years of
Excellence

ISO 9001
Eco Safe
Premium
Certified

Our kaolin is sourced from premium clay deposits and processed using advanced beneficiation technology to deliver exceptional brightness, purity, and consistent performance.

Premium Quality

Finest clay deposits worldwide

Advanced Processing

State-of-the-art beneficiation

Consistent Quality

Batch-to-batch reliability

Technical Support

Expert application assistance

Start Your Journey With Us
Key Metrics
8+Processing Plants
45+Countries Served
800+Happy Customers
35+Years Experience
EcoVadis Gold Sustainability Rating
8+Processing Plants
R&DInnovation Center
24/7Global Logistics
ExpertTechnical Team
Knowledge Base

Frequently Asked Questions

Get answers to common questions about Kaolin

Knowledge Center

Find detailed answers about specifications, applications, and technical details.

4Questions
24/7Support
TechnicalApplicationsGradesQuality

Still Have Questions?

Our team is here to help

Contact Us
01

What is kaolin used for?

Kaolin is widely used in paper coating, ceramics, paints, rubber, and pharmaceuticals due to its brightness, fine particle size, and chemical stability.

Paper Ceramics Paints
02

What makes kaolin different from other clays?

Kaolin has exceptional whiteness, chemical purity, and fine particle structure that distinguishes it from ball clay, bentonite, and other clays.

White Pure Fine
03

Is kaolin safe for cosmetics?

Yes, pharmaceutical and cosmetic grade kaolin meets strict purity standards and is widely used in skincare, makeup, and personal care products.

Safe Pure Tested
04

What brightness levels are available?

We offer kaolin grades with brightness ranging from 82% to 92%+, including premium coating grades and standard filler grades.

Standard High Premium

Still have questions?

Our technical experts are available to provide detailed answers

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Industry Applications

Product Applications

Kaolin serves as a critical input across diverse industrial sectors worldwide

01

Paper Coating

Coating and filling for brightness and printability.

02

Ceramics

Porcelain, sanitaryware, tiles and tableware.

03

Paints

Extender pigment in decorative coatings.

04

Rubber

Reinforcing filler in compounds.

05

Plastics

Functional filler in polymers.

06

Cosmetics

Base for makeup and skincare.

07

Pharmaceuticals

Excipient in formulations.

08

Agriculture

Carrier and soil amendment.

09

Adhesives

Filler in bonding systems.

10

Refractories

High temperature applications.

10+Application Sectors
20+Product Grades
45+Countries Served
800+Industry Clients
Kaolin industrial applications worldwide
Global Industrial Reach

Powering Industries Across
50+ Countries

From cosmetics to oil & gas — kaolin is the essential mineral behind thousands of products you use every day.

Need a Specific Grade for Your Application?

Our experts will guide you to the perfect kaolin solution

Request Expert Consultation
Product Video

See It In Action

Watch how 20 Microns' Kaolin powers real-world industrial applications

Kaolin in Action – 20 Microns
YouTube
Official Product Film

Kaolin - Applications & Processing

20 Microns Limited · Official Channel

About This Video

Discover how 20 Microns' Kaolin grades deliver superior performance across industrial applications.

  • Product manufacturing overview
  • Quality control processes
  • Application demonstrations
  • Global supply capabilities
Watch on YouTube

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Kaolin

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