The SN100C Pb-free alloy flux system is available in low VOC, VOC-free, alcohol-based formulations, solder paste form, and also as paste and liquid fluxes; appropriate for wave, reflow, selective, and hand (cored wire) soldering. Has a synthetic base that reportedly provides stability under the higher temperatures required by Pb-free alloys. Said to work well in air or under a nitrogen blanket. Is compatible with many different finishes, including OSP, Ni/Au, Ag and Sn.

Cobar Solder Products, www.cobar.com