Electrical, 40% tin content flux-filled soft solder wire, ISO Core "KOLO" S-Sb60Sn40 according to DIN EN 29453 (formerly L-PbSn40 according to DIN 1707), flux content: 3.5% Flux, 1.1.1.B according to DIN EN 29454 (formerly flux designation F-SW 31), for fine soldering, plumbing, telecommunications construction, general soldering work, melting range: 183 - 235° C. The flux is non-conductive and more strongly activated on a halogen basis! Note: For commercial users only! Type Accessories Version Electrical Area of application soldering