1m spool of solder wire ISO-Core Clear, Sn100Ni+, Sn99.3CuNiGe according to Fuji-Pat-No. DE 19816671C2, 3.5% flux content, 1.00 mm diameter, melting range 227°C. High-quality lead-free solder wire for manual and automated soldering in electrical engineering, electromechanics, and electronics. The flux is characterized by high temperature resistance and does not spatter during melting. Optimal wetting and above-standard spreading values make this lead-free solder wire a top product among tube solders. The new flux formulation "Clear" is based on synthetic resins (free from rosin) and has been perfectly tailored to the new requirements of lead-free soldering technology: high wetting speed and spreading on all common surfaces in electronics, no flux spatter on the assembly, equipment parts, or the hands of users, crystal-clear flux residues to optimize the visual impression, minimal outgassing and neutral odor reduce workplace exposure, easily removable residues on soldering tips, which can be cleaned with conventional means (flux cleaner, solder sponge, steel wool), passed the 100MO test - also suitable for assembly production, significantly extends the lifespan of soldering iron tips.