ISTRA 50 5.0

ISTRA 50 5.0 is an efficiency-oriented premium product for building chemistry and refractory applications, and is the next generation of our Istra 50.


If you are interested in ordering a product sample please contact us on the following email address

General information


  • AI 2O 3 -content ~ 50%
  • Beige
  • Normal setting
  • Fast hardening
  • High early and final strength value
  • Optimized granulometry and mineralogy
  • Refractoriness up to 1450°C

ISTRA 50 5.0 has particular advantages when used in flooring products, which include a cost and CO 2 - saving.

ISTRA 50 5.0, like ISTRA 50, is suitable for refractory applications in the medium temperature range. It offers the advantage of improved workability properties and higher green strengths.


We welcome the opportunity to provide you with customized support regarding specific product or project questions – please contact us directly, so we can discuss your individual needs.