Istra 45

ISTRA 45 is a normal setting, rapid hardening Calcium Aluminate Cement with good early strength. It is characterized by its anthracite/gray color and is particularly suitable for applications in which the look of Portland cement is desired.


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General information


  • AI 2O 3 -content ~ 45%
  • Anthracite/gray
  • Refractoriness up to 1350°C
  • High abrasion resistance
  • Very good resistance to biogenic sulfuric acid corrosion

In building chemistry, ISTRA 45 is typically used in floor products.

Due to its very good resistance to aggressive biogenic sulfuric acid corrosion, ISTRA 45 is also used in the field of sewage.


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.