Especially when repairing lead-free solder joints, you need a flux that can also dissolve larger soiling and thick oxide layers. It must enable fast soldering with power. Using a syringe with a plastic tip, FL 22 P Power flux gel is applied precisely to the areas to be soldered. The well-known effect that flux with its alcohol content volatilises quickly does not occur immediately with flux gel. The flux composition corresponds to F - SW 26 (DIN EN 29454 / 1.2.2.C). Due to the halogen content of the flux, it is possible to solder dirty and corroded components. Residues should be removed.