Welcome to Imerys Performance Minerals

Mistron CB

Mistron® CB For lower permeability, improved modulus and compression set in medical stoppers, O-rings and gaskets

Mistron® CB has been specifically designed to improve the barrier properties of stoppers, gaskets and membrane applications.

Mistron® CB is very fine microlamellar talc which has been surface treated with a proprietary silane coupling agent for use in sulfur and peroxide cured rubber compounds to improve barrier properties, modulus and compression set.

Mistron® CB provides:

  • Excellent barrier properties
  • Good chemical resistance
  • Improved modulus
  • Low compression set
  • Carbon black replacement

Barrier properties

In tests conducted at our laboratory in France, medical stoppers reinforced with Mistron® CB demonstrated 30% less permeability than stoppers filled with calcined clay, for example.

Mistron® CB also improves tear resistance of stoppers limiting fragmentation.

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

Contact us Contact