Istra 50

ISTRA 50 is the Calcium Aluminate Cement for tough demands. It is characterized by its purity and high final strength value.


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
  • Refractoriness up to 1450°C
  • Maximum final strength value
  • High abrasion resistance
  • Very good resistance to biogenic sulfuric acid corrosion

ISTRA 50 is used in sophisticated building chemistry products, both in refractory applications in the medium temperature range, such as fireproofing insulating concretes.


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.