Welcome to Imerys Performance Additives Division

Bitumen roofing

Bitumen roofing Imerys talc - an excellent process aid for bitumen roofing products

Coarse-grind Imerys talc grades are used to back-surface hot asphalt in the production of bitumen membranes, bitumen-based felt and modified bitumen-sheet roofing products.

Imerys talcs:

  • Prevent sticking or caking in storage
  • Facilitate surface mineralization of the bitumen membrane

Our finer talc grades are also used as fillers in modified bitumen roofing where they:

  • Reduce volatile loss
  • Provide better UV and weathering properties

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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Coatings & Construction