's Chem-Wik solder
KES-TSF6502/10 is a premium grade lead-free, no-clean, halide-free solder paste from Kester. It is designed for use in numerous electronics applications including soldering, rework, and hand soldering of surface mount components. The solder paste has a unique, low-temperature melting range, allowing it to be used in reflow systems with temperatures up to 260°C (500°F). It is optimized for reduced voiding and flux residue. The paste is designed for compatibility with a wide range of surfaces including nickel, silver, gold, and copper, and is capable of soldering to many different substrates, from lead-free to SAC alloys. The paste provides excellent wetting to even the most difficult of SMT components and is ideal for use in multiple reflow cycles.