Kaolin: A Comprehensive Guide for Buyers in 2025


Kaolin, a versatile and widely used industrial mineral, is essential in industries ranging from ceramics to cosmetics. This guide provides insights into sourcing, types, and applications of Kaolin, helping buyers make informed decisions.


How to Find Reliable Kaolin from China in 2025


China remains a leading supplier of Kaolin, offering competitive prices and high-quality products. To find reliable suppliers:

  • Verify certifications like ISO and SGS.
  • Check supplier reviews and transaction history on platforms like Alibaba.
  • Request samples to test quality before bulk orders.

Top regions in China for Kaolin production include Guangdong and Fujian, known for their rich mineral deposits.


What Buyers Should Know Before Buying Kaolin from China


Before purchasing Kaolin, consider:

  • Moisture content (ideally below 1%).
  • Particle size distribution for specific applications.
  • Chemical composition (Al2O3 content should be above 35%).

Negotiate shipping terms (FOB or CIF) and ensure clear communication to avoid delays.


Types of Kaolin


Kaolin is categorized based on processing and purity:

  1. Hydrous Kaolin: Natural, unprocessed form used in ceramics.
  2. Calcined Kaolin: Heat-treated for enhanced brightness and opacity, ideal for paints.
  3. Surface-Modified Kaolin: Chemically treated for specialized applications like rubber filler.

Functions and Features of Kaolin


Key properties of Kaolin include:

  • High whiteness and brightness (up to 90% reflectance).
  • Excellent plasticity and binding strength.
  • Low conductivity, making it ideal for electrical insulators.

Its inert nature ensures compatibility with most industrial processes.


Scenarios of Kaolin


Kaolin is used in:

  • Ceramics: Enhances strength and gloss in tiles and tableware.
  • Paper: Improves printability and opacity (30% of global demand).
  • Cosmetics: Acts as a gentle exfoliant in masks and powders.

How to Choose Kaolin


Select Kaolin based on:

  1. Application: Calcined for paints; hydrous for ceramics.
  2. Purity: Opt for >90% kaolinite content for premium results.
  3. Supplier Reputation: Prioritize vendors with 5+ years of export experience.

Kaolin Q & A


Q: What’s the price range for Kaolin in 2025?
A: Prices vary from $50–$300/ton, depending on type and purity.

Q: Can Kaolin replace titanium dioxide in paints?
A: Partially—it improves opacity but lacks TiO2’s UV resistance.

Q: How is Kaolin shipped from China?
A: Typically in 25kg bags or bulk containers, with sea freight being most cost-effective.

Q: Does Kaolin expire?
A: No, but store it in dry conditions to prevent clumping.

Q: Is Kaolin eco-friendly?
A: Yes, it’s non-toxic and biodegradable.