ITEM NAME:Kester-951 Free-cleaning 10ml Soldering Flux Pen for Solar Cell & FPC/PCB Z #aucsearchbutton #aucsearchbutton:hover { cursor: pointer;.Halogen-free, non-rosin organic flux pen. Exhibits improved soldering performance to minimize solder bridges (shorts) during rework operations. 100% New and High Quality Model: 951. Designed for rework of conventional and surface mount circuit board assemblies.