Welcome to Imerys Performance Minerals

Opacilite Ultra

Opacilite™ Ultra For TiO2 extension and opacity in thermoplastics

  • Excellent opacity
  • High whiteness
  • Lower compound cost

Opacilite™ Ultra is a high whiteness flash calcined kaolin designed for TiO2 extension in thermoplastic sheet and film. Used in combination with TiO2, Opacilite™ Ultra maintains color and opacity at a lower compound cost.

Imerys Opacilite™ Ultra is a high whiteness calcined kaolin produced by a new, patented rapid heating process.

This technique creates large numbers of tiny sealed voids within the clay particles, resulting in:

  • Excellent opacifying properties
  • High whiteness
  • Low specific gravity

Opacilite™ Ultra is suitable for the partial replacement of TiO2 in LLDPE, HDPE and PS.



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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