Superior No. 317 Low-Residue flux is a specially formulated low-solids flux free of any halides,resin, or rosin. This flux was designed for soldering high quality electronic printed circuit boards (PCBs), such as, through-hole, mixed technology, and surface mount assemblies while eliminating the need for a post cleaning operation. Superior No. 317 Low-Residue flux is formulated for foam or spray applications as supplied.
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