Relife HW21 183° Solder Paste Lead-Silver Solder Paste Contains lead and silver for strong  conductivity and improved strength in solder joints Optimized Medium-Temperature Welding 183? melting point protects temperature-sensitive components while ensuring high-quality connections Excellent Wettability Provides superior spreading and adhesion for reliable solder joints High Yield Performance Easy to print with minimal tin bridging, resulting in high production yield rates No-Clean Formula Eliminates the need for post-soldering cleaning, saving time and resources in the manufacturing process