The new water-based flux with a solids content of 2% has been specially developed for soldering solar modules, tabber and stringer material as well as for connecting cells. The NO Clean-Flux, which is also VOC-free, is based on a halide-, resins- and rosin-free formulation. “The new solar flux is characterised by powerful activation, leaves no sticky residue and is free from corrosive effects. The activators are specially designed for the higher temperatures required in the manufacture of solar modules, which is why heat does not impair their effectiveness,” explains Markus Geßner, Head of Marketing and Sales at Emil Otto GmbH.
SOLAR-FLUX EO-S-023 is also available as a concentrate and, as a water-based flux, is biodegradable. It is therefore not a hazardous material and can be transported, handled or stored in the conventional way with reduced volume. The ease of storage in particular is a significant added value. “This is an important factor for module manufacturers abroad. As this flux is not a hazardous material, the shipping and transport costs are many times lower,” concludes Geßner.