Kaisi 0.6mm 50g Rosin Core Solder Wire Sn60 Pb40

The Kaisi-0.6 is a 50g reel of rosin-core solder wire with a 0.6mm diameter, formulated from a Sn60/Pb40 tin-lead alloy for precise electronics soldering. The 60/40 composition sits close to the eutectic point, giving the wire a low melting range, smooth flow, and bright, strong joints that resist mechanical shock. A 1.2% rosin flux core actively removes surface oxides during heating, allowing the solder to wet component leads and PCB pads evenly and reducing the need for post-solder cleaning. The 0.6mm diameter is well suited to fine-pitch work such as SMD assembly, mobile phone and television board repair, and other delicate electronic tasks, where controlled solder deposition helps avoid bridging and damage to heat-sensitive parts. The compact 50g reel is easy to store and handle, making this rosin core solder wire a practical consumable for repair technicians, students, and hobbyists. The Sn60/Pb40 alloy is not lead-free and is intended for applications where RoHS compliance is not required; for environmental or medical projects, a lead-free alternative should be selected. This 0.6mm solder wire delivers consistent melting behaviour and reliable joint formation across general PCB soldering and rework.