SRA Solder 135 Rosin Paste Soldering Flux For Electronics, No Clean Flux Made for Lead and Lead-Free Solder Circuit Boards and Copper Electrical Wire - Safe Residues with No Goopy Mess (2oz 2-Pack)
No Goop Solder Flux - Semi-solid solder wax consistency gives you superior control over application; Simply dip copper electric wires or apply electronic rosin flux to PCB and watch the solder flow!
Flux for soldering DIY electronics projects including Car Audio, Stereo & Hifi, Computers, RC Vehicles, Drones / FPV, Musical Instruments, Gaming Consoles, Model Railroad, Arduino / Raspberry Pi, etc
Does not need to be cleaned
Formulated for use with tin/lead and lead-free alloys