Caig Labs RSF-R39-8 - Soldering Flux, Rosin, No-Clean, Halide Free, 226g Jar
RSF-R39 Rosin No Clean Flux is a mildly activated rosin UX that is considerably more active than water-white rosin. Recommended for electrical and electronic soldering applications - excellent for P.C.B repair and rework Can be safely left on the circuit board after reow without cleaning. No refrigeration is necessary. "Made in the USA"