Our products
Mortars
Fireclay Mortars
| Grade | Description | Max. Service Temperature (°C) | AI2O3 (%) |
| ZSz 2/II | Dry fireclay-based mortars, setting at high temperature (heatset). Available in several grain size variants, suitable for different joint thicknesses. | 1300 | 28,0 |
| ZSz 2/III | 1300 | 28,0 | |
| ZSz 28 | 1300 | 28,0 | |
| ZSzG | Ready-to-use wet fireclay-based mortar, air-setting (airset). | 1200 | 30,0 |
| ZSz 4/II | Dry fireclay-based mortars, setting at high temperature (heatset). Available in several grain size variants, suitable for different joint thicknesses | 1350 | 30,0 |
| ZSz 1/I | 1400 | 33,0 | |
| ZSz 1/II | 1400 | 33,0 | |
| ZSz 1/III | 1400 | 33,0 | |
| ZSz 36 | 1400 | 33,0 | |
| ZSz 0/I | 1450 | 38,0 | |
| ZSz 0/II | 1450 | 38,0 |
High-Alumina Mortars
| Grade | Description | Max. Service Temperature (°C) | AI2O3 (%) |
| ZAN | Dry andalusite-based mortar, setting at high temperature (heatset). | (°C) | 50,0 |
| ZAL 60 | Dry high-alumina aggregate-based mortar, setting at high temperature (heatset). | 1600 | 46,0 |
Insulating Mortars
| Grade | Description | Max. Service Temperature (°C) | AI2O3 (%) |
| ZLPC | Dry perlite- and fireclay-based mortar, air-setting (airset). | 28,0 | |
| ZL | Dry fireclay-based mortar, setting at high temperature (heatset). | 1300 | 32,0 |
The values provided are for information purposes only and represent the typical properties of individual refractory products.
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Ostrowieckie Zakłady Materiałów Ogniotrwałych “OZMO”
ul. Sandomierska 112
27-400 Ostrowiec Świętokrzyski