The KAILIWEI RMA-559-UV is a high-performance rosin-based flux designed for professional SMD, BGA, and PCB soldering applications. Packaged in a convenient 10cc syringe, it allows precise and controlled dispensing, making it perfect for chip-level rework and fine-pitch components. Its RMA (Rosin Mildly Activated) formulation ensures excellent solderability while minimizing residue, thanks to its no-clean properties. The flux is UV-reactive, allowing easy inspection under ultraviolet light to verify application and coverage. Compatible with both leaded and lead-free solder, it enhances heat transfer, reduces oxidation, and improves joint reliability. Whether you're repairing mobile phones, laptops, or other sensitive electronics, the KAILIWEI RMA-559-UV flux syringe delivers consistent performance and professional-grade results.