The hybrid flux EO-Y-004 was developed for use in wave and selective soldering and has a solids content of 3.5 - 3.7%. It was developed for use in wave and selective soldering and therefore has a very wide range of applications. The soldering properties are very good, especially in terms of penetration and wetting of the circuit board. The process window is very wide, with high thermal stability. In practice, it has been shown that when used properly, washing of PCBs soldered with this flux can usually be dispensed with. The printed circuit boards are visually clean.
However, due to the low alcohol content, it is also very suitable for transportation and storage in winter, unlike purely water-based fluxes, as it is frost-proof. The flux is also available as a concentrate. "Our new flux concentrates are particularly interesting for customers who purchase large quantities or manufacture abroad," explains Markus Geßner, Head of Marketing and Sales at Emil Otto GmbH. This is because all Emil Otto concentrates can be transported without hazardous substance identification and in greatly reduced volumes. "A flux becomes a hazardous substance if it contains a certain amount of alcohol, among other things. Our customers add the alcohol or the alcohol-water mixture on site," continues Geßner. Furthermore, the concentrates can be packaged more easily and in smaller volumes.
Thanks to the transport optimizations, the flux concentrates can be transported over long distances in a very economically attractive way, as freight forwarders charge far lower costs for non-hazardous goods. "Mixing the flux on site is very simple. Each concentrate comes with the necessary information on which liquid needs to be added to the concentrate and in what dosage. The granulate quantity of EO-Y-004 is sufficient for 10 liters," continues Geßner.
Emil Otto presents the new flux EO-Y-004 at productronica 2017, Hall A4 Stand 420.