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Alcohol-based flux RS-4004 (multiflux)

Recommended method of application
Wave and selective soldering, manual and repair soldering, dip soldering

No Clean-Flux, alcohol-based
Di-carboxylic acids, minimal resin content, halogenide-free (WEEE/RoHS compliant)
Type ISO-9454: 2231 // DIN EN 61190-1-1 (acc. J-STD-004) (IEC: ORL0)

Cat.-No. 3091

Technical Data

Appearance/smell: colourless to light yellow, clear liquid
Hazardous goods: Yes
Solids content: 3.5 wt.-%
Acid number: 23 – 27 mg KOH/g
Halogenide-free: Yes
Resinous: Yes
Available as concentrate: No
Density at 20 °C: 0.797 (+/-0.003) g/ml
Flash point: 12 °C
Durability: 12 months


The RS-4004 has been developed especially for use with wave and selective soldering. In addition, it can be used for manual and dip soldering. All the conventional application methods can be used. The solids content amounts to 3.5 wt.-%. The soldering flux contains a corrosion inhibitor.

Customer added value

  • Very wide range of applications (multiflux)
  • Very good soldering properties (capillarity, wetting)
  • Broad process window (very high thermal stability, very high activity over a long interval)
  • Good residue behaviour (very clean, high SIR)
  • Successful passing of internal test (SIR selective)

Packaging units