Welcome to Imerys Performance Minerals


Hexafil Cost-effective ultra-fine kaolin for superior mechanical properties and processability

  • Superior modulus
  • Excellent green strength
  • Improved tear and abrasion resistance
  • Enhanced processability

Hexafil is ultrafine, ball clay or hard kaolin.  As a result of its finer particle size, Hexafil provides excellent compression set and abrasion resistance, making it a prized additive for shoe soles and rubber floor mats for example.

Hexafil is designed to improve the mechanical properties of EDPM, SBR and silicone used in a broad array of end applications. It is a suitable cost-effective solution where color is not of prime importance.

Used in rubber compounds, Hexafil improves:

  • Modulus
  • Tensile strength
  • Tear resistance
  • Abrasion resistance
  • Green strength
  • Processability
  • Cured stiffness

Hexafil is recommended for:

  • Shoe soles
  • Floor mats
  • Automotive hoses
  • Cable sheathing
  • Hydraulic and industrial hoses


We offer a full range of bespoke formulation and technical and process support services to help you match the right mineral grade to your application requirement.

Please contact us. We will be only too happy to help

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