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Water-based flux WB-30/EK 1401 (multiflux)

Recommended method of application
Wave and selective soldering

No Clean-Flux, water-based
Di-carboxylic acids, VOC-free, synthetic resin, halogen-free (WEEE/RoHS compliant)
Type ISO-9454: 2131 \\ DIN EN 61190-1-1 (ORL0)

Cat.-No. 2107
2107-Kanister-WB-30-EK 1401-EN_520x520px

Technical Data

Appearance: colourless, minimal whitish liquid
Hazardous goods: No
VOC: 0.0 %
Solids content: 3.0 wt.-%
Acid number: 24 – 27 mg KOH/g
Halogen-free: Yes
Resiny: Yes
Activators: di-carboxylic acids, VOC-free, synthetic resin, halogen-free
Solvents: water-based
Flash point: non-flammable
Available as concentrate: No
Durability: 12 months


The WB-30/EK-1401 is pure water-based and has been developed for the usage with wave soldering machines. It has a high level of activity. It is ecologically harmless and non-flammable. The WB-30/EK1401 with its soldering-related properties is at least just as good as comparable alcohol-based soldering fluxes. Application takes place using a spray fluxer. The soldering flux can also be used in selective soldering processes. Due to the low resin content, the coating of the flux residues is ensured and thereby the surface resistance is positively influenced.
Practice has shown that no washing is needed for PCBs properly soldered with WB-30/EK 1401.

Customer added value

  • Non-flammable (no legal restrictions for transport, storage and handling)
  • Very good soldering properties (capillarity, wetting)
  • Broad process window (high thermal stability, good activity over a long interval)
  • Very good residue behaviour (optically very clean, high SIR)
  • Very good price-performance ratio

Packaging units