Welcome to Imerys Performance Minerals

Mercap Series

Mercap Series Surface-Treated kaolins for Sulfur & Peroxide Cures

All kaolin fillers share some common features because of the plate-like shape of  their particles, which results in some stiffening of the rubber compound. This gives much better extrusion and calendering properties (exhibiting low die swell and good dimensional stability) than can be obtained from other mineral fillers.

Surface-treated products like Mercap 100 and Mercap 200 have proven themselves to be versatile, high value, functional mineral fillers. 

Used in rubber compounds, Mercap 100 and Mercap 200 improves:

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

Kaolin functions as an extender and also contributes beneficially to the physical properties of the rubber compound.

The Mercap Series is recommended for:

  • Cable Sheaths
  • Hose
  • Footware
  • Tyres
  • Seals and Gaskets

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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