Rubber

Advanced Kaolin Solutions for Enhanced Rubber Performance

Hydrous kaolin, also known as China clay, is widely used in the rubber industry primarily as a filler and extender. Its cost-effective nature helps reduce the use of expensive raw materials like rubber and resins while enhancing properties such as tensile strength, flexibility, and durability.
On the other hand, calcined kaolin, produced by heating hydrous kaolin to high temperatures, acts as a reinforcing agent that enhances strength, wear resistance, and heat resistance in rubber products. It is used in high-performance rubber applications such as tire manufacturing, industrial seals, and sports equipment where durability and high-temperature performance are crucial.

Hydrous Kaolin (China Clay) in Rubber

Primary Use
  • Filler and extender to reduce costs and enhance rubber volume.
Key Benefits
  • Cost Efficiency: Affordable, reduces need for expensive rubber ingredients.
  • Improved Mechanical Properties: Enhances tensile strength, flexibility, and durability.
  • Processing Aid: Improves flow, dispersion, and consistency in molding and extrusion.
  • Weather and Chemical Resistance: Increases rubber's resistance to UV degradation, moisture, and chemicals.
Applications
  • Automotive parts (seals, gaskets, hoses)
  • Footwear (rubber soles)
  • Industrial rubber (belts, mats)
  • General-purpose rubber products

Calcined Kaolin in Rubber

Primary Use
  • Reinforcing agent to enhance strength, durability, and performance.
Key Benefits
  • Reinforcing Properties: Improves strength, durability, and wear resistance, especially for heavy-duty uses.
  • Heat Resistance: Excellent high-temperature performance, ideal for tire and industrial applications.
  • Surface Finish: Enhances the polished, smooth surface of rubber products.
  • Lightweight with High Strength: Ideal for reducing weight while maintaining strength in automotive and sports equipment.
Applications
  • High-performance tires
  • Seals and gaskets for automotive and industrial use
  • Sports equipment
  • High-performance rubber products (heat-resistant seals, hoses)

Conclusion

  • Hydrous Kaolin: Best for general-purpose, cost-effective rubber products with good volume and basic durability.
  • Calcined Kaolin: Ideal for high-performance rubber products requiring superior strength, heat resistance, and wear resistance.