“The solar industry is important for Germany as an industrial location. But the energy transition that is crucial in Germany and Europe is also crucial for Emil Otto’s product development.

Rather, we want to offer the customer a flux that is optimal for his process,” Geßner continues.

“The development of a comprehensive flux portfolio is not an end in itself and we are not interested in being happy to have a large flux range. The consumables used in solar cell production must therefore necessarily be adapted to the respective framework conditions. For example, the heating systems for preheating, which are not comparable to those in the electronics industry, do not allow the use of purely water-based fluxes. Manufacturing systems in solar cell production sometimes have different configurations and specifications and therefore differ from electronics manufacturing systems. Fluxes that have already been on the market for 20 or 30 years no longer meet these modern production and process requirements,” explains Markus Geßner, Marketing and Sales Manager at Emil Otto GmbH.įor example, flux is applied by spraying or dipping. It is precisely here that special fluxes are required that are tailored to the system, the process, and the finished end product. We believe that there is not just one flux for all applications, especially not for highly developed end products. Thus, we have not only developed process-specific fluxes for the processes of electronics manufacturing but have also adopted this concept for the solar industry. “We offer the optimal flux for every area of application in solar cell production. The company has developed a total of 17 fluxes for soldering solar modules, tabber and stringer materials and connecting cells. In addition to products for electronics manufacturing and the metalworking industry, the flux specialist Emil Otto also has a segment for the solar industry in its portfolio.

Tabber machine