Achieve precise and reliable soldering with the 10cc RMA-223 Soldering Paste Flux. Ideal for SMD, BGA, CSP, LED, and PCB repair, this rosin-based flux ensures excellent insulation, smooth welding surfaces, and high-strength solder joints. Wash-free and non-toxic, it comes with a booster needle for easy and accurate application, making it perfect for DIY electronics and professional repair work. Main Features: Moderately Active RMA-223 Flux – Ideal for SMD repair, mobile phone boards, and BGA/CSP ball joint repair Wash-Free & Non-Corrosive – Light-colored paste with high SIR value, safe and convenient Precision Application – Comes with a booster needle for accurate solder paste placement Smooth & Reliable Soldering – Ensures good immersion, strong joints, and smooth welding surfaces Durable & Stable – No drying, deterioration, or loss of performance over time Non-Toxic & Safe – Safe for DIY and professional use Specifications: Material: Rosin-based solder paste flux Application: Chips, LED, BGA, SMD, PGA, PCB repair