• Halogen-free per J-STD-004B
• Developed for wave soldering mixed-technology and through-hole electronics assemblies
• Light-colored, low-residue, and rosin-containing flux for better performance on large and thick circuit boards
• Compatible with Hot Air Solder Leveled (HASL), Immersion Silver, Electroless Nickel Immersion Gold (ENIG), and Organically Solder Preserved (OSP) Copper surfaces
• For use with all common lead-free and tin-lead alloys
• Solids content: 5.77 percent
• Flash point (F TCC): 54 F
• J-STD-004B Flux Type: ROL0
• Specific gravity @ 25 C (77 F): 0.796 ; @ 15 C (60 F): 0.802

WF-9945 is a halogen-free no-clean flux developed for wave soldering mixed-technology and through-hole electronics assemblies. WF-9945 is formulated to provide excellent wetting and superior hole-fill under a wide variety of conditions. When compared to Indium Corporation’s halogen-free WF-9955, WF-9945 contains more rosin, which increases heat stability and widens the effective heat profiles, allowing for very high yield when wave soldering larger, thicker, and more complex circuit boards. The trade-off is slightly more visible residue and in some cases, changes required to electronic probe testing procedures. WF-9945 is designed for use with tin-copper, tin-silver-copper, and tin-lead alloys.