Welcome to Imerys Performance Minerals


Crys-Talc® Your cost-effective solution for polymer crystallization

  • Optimum nucleation in homopolymer and copolymer PP
  • Effective nucleation in polyamides, PLA, and semi-crystalline polymers
  • Improves rigidity and impact resistance
  • Increased injection-molding and extrusion output
  • Excellent mixing behavior and dispersion

Crys-Talc® is a new, very bright, cost-effective and highly efficient plastic nucleation talc grade with a unique, micro-lamellar morphology. Crys-Talc® is ideal for the nucleation of polypropylene (PP), polyamides, PL and other semi-crystalline polymers.

Due to its unique micro-crystalline structure, Crys-Talc® provides an optimum surface for the nucleation of semi-crystalline polymers.

In Polypropylene

Crys-Talc® is an efficient and highly cost-effective nucleating agent for polypropylene that:  

  • Increases crystallization temperature and kinetics
  • Increases injection-molding and extrusion output by 10 to 15%
  • Improves stiffness, strength and Izod impact performance

Onset crystallization temperature and crystallization half time of copolymer PP nucleated with Crys-Talc®

Overall performance of Crys-Talc® in PP

At higher addition rates, Crys-Talc® acts as a reinforcing agent improving stiffness, impact resistance and heat distortion temperature (HDT).

In Polyamides

Talc is also an efficient nucleating agent for polyamides.
Data obtained in PA6 shows that Crys-Talc® can significantly increase crystallization temperature compared to unfilled PA6 or PA6 filled with other minerals.

Increasing crystallization temperature in PA6:

  • Allows the polymer melt to solidify faster
  • Improves the throughput of industrial processes
  • Reduces injection molding cycle times

Significant increase in crystallization of PA6 with Crys-Talc compared to other minerals

Crys-Talc® is available in compacted form for easy handling, less dust and improved productivity.



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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