Casting process for flat membranes

Roll-to-roll production

Using a roll-to-roll process, we can produce flat membranes with thicknesses between 20 and 200 µm and a width of 300 mm. 

During casting, both temperature and atmosphere can be controlled and we have a precipitation bath which allows temperatures between 4 and 90°C. 


Dense, multilayer and mixed-matrix membranes

The main focus of Fraunhofer IGB is the processing of mixed-matrix systems. Using solvent evaporation or phase inversion processes, we can also produce both dense and porous membranes. In addition, we can calender multiple functional layers to form complex systems.

Our developments

Water purification

Forward osmosis membranes for gentle processing of complex mixtures.



Ionomer mixed matrix membranes for electrolysis and fuel cells.