High-quality lead-free solder wire for hand and automatic soldering in electrical engineering, electro-mechanics and electronics. The flux is characterized by high temperature resistance and does not spray during melting. An optimal wetting as well as the standard spreading values make this lead-free soldering wire a top product among the tube solders. The new flux formulation "Ultra-Clear" is based on synthetic resins (free of colophony) and has been perfectly adapted to the new requirements of lead-free soldering technology:· High wetting speed and spread on all surfaces common in electronics· No (painful) flux spatter on the assembly, system parts or the hands of the user(s)· Clear flux residues to optimize the optical impression· The lowest output and neutral odor reduces the stress on the workplace· Easily removable residues on soldering tips, these can be removed with conventional means (FIELDS, solder sponge, metal wool)· 100M-Test passed- can also be used in assembly productio