Indium WF-9942

ORL1 No-Clean Wave Solder Flux

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WF-9942 is a highly active no-clean wave solder flux designed for use with through-hole and mixed-technology assemblies. It has been effectively used in both tin-lead and lead-free soldering operations. WF-9942 is a second generation no-clean flux designed to meet the requirements of J-STD-004. Although not specifically designed for lead-free soldering (third generation no-clean) or to the requirements of the later J-STD-004B (fourth generation no-clean), WF-9942 has been successfully and reliably used to assemble millions of circuit boards for the last 15 years. WF-9942 exhibits very good SIR and ECM results when tested to the J-STD-004 and Telcordia GR-78 requirements. A rosin-free fourth generation product comparable to the WF-9942 is Indium Corporation's WF-9958.

  • Passes J-STD-004 SIR and ECM requirements for ORL0 and passes Telcordia GR-78 SIR requirements
  • Very low solder balling
  • Wide process window for soldering larger and/or thick circuit boards
  • Can be applied by foam or spray fluxing
  • Tested for use with all common lead-free and tin-lead alloys, including SAC305, SAC105, SAC0307, silver free tin-copper plus additive alloys, such as Indium Corporation's Sn995, 96.5Sn/3.5Ag, 63Sn/37Pb, 60Sn/40Pb, and many others
  • Tested compatibility with Hot Air Leveled (HASL), Immersion Silver, Electroless Nickel Immersion Gold (ENIG), and Organically Solder Preserved (OSP) copper surfaces
  • Rosin-free for enhanced pin probe testability
  • Shelf Life: 2 years in an unopened container stored at less than 32.2°C (90°F)
Grouped product items
Product Name Qty
Indium FLUXWV-84376-G
ORL1 No-Clean Wave Solder Flux, 1 Gallon (Case of 4)
$248.98
Indium FLUXWV-84376-5G
ORL1 No-Clean Wave Solder Flux, 5 Gallon Pail
$308.11
Indium FLUXWV-84376-55G
ORL1 No-Clean Wave Solder Flux, 55 Gallon Drum
$2,993.22

Technical Documents

Physical Properties

WF-9942 is almost colorless, indicating that it is rosin-free. The solvent blend ensures even distribution of flux solids both during storage and during spray flux deposition. The specific gravity of WF-9942, 0.828 @ 25°C, is measurably higher than that of pure isopropyl alcohol. However, in contrast to higher solids content fluxes, specific gravity is not the best method to control the quality of WF-9942. This is because flux solids content is relatively low and small amounts of water contamination can confuse specific gravity measurements. While in-process quality control of WF-9942 is not generally required, the best method is to ensure both solids content and activity level is by acid value titration.

  • Color: Clear
  • Specific Gravity:
    • @25°C (77°F): 0.828
    • @15°C (60°F): 0.833
  • Acid Value (mgKOH/g flux): 36
  • Solids Content: 4.37%
  • Flash Point (°F TCC): 54
  • J-STD-004A Flux Type: ORL0
More Information
PAC Item Code G101014
MFG Part Number WF-9942
Brand Indium
Type No Clean
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