Sumitron exports suppliesoffers flux pen. This flux pen is , a unique tool which is used for rework and touch-up soldering, developed by littonkester, singapore. It allows ccontrolled application of flux is allowed by the flux pen. These flux plux , eliminates ing the mess from flux bottles. Flux pens are ideally suited ffor surface mount reworks, components add-on applications and tab assembly operations flux pens are best suited. The two available formulas are low solidsno clean [951] and rma no clean [code 186].