100g/Box Soldering Paste Flux No-Clean Rosin Environmentally Friendly Solder Paste Mobile Phone Motherboard Circuit Board Professional Soldering Oil PCB IC Parts Parts Welding

High-quality environmentally friendly solder paste, looks like butter paste, has high bonding strength, neutral PH value, good insulation, and smooth welding surface. Suitable for welding of precision electronic chips such as mobile phone PC boards. Removal of oxide film: Essentially, the substances in rosin undergo a reduction reaction to remove the oxide film. Prevent oxidation: After melting, an isolation layer floats on the surface of the solder to prevent oxidation during soldering. Reduce surface tension: increase welding fluidity and help weld wet welding parts