Otto's Original - Quality products since 1901


No clean, alcohol-based flux, high resin content, di-carboxylic
acids, halogen-free (WEEE/RoHS compliant)
ISO-9454: 1231 // DIN EN 61190-1-1: L0 (REL0)

Packaging units:
20 l
optionally available as dispenser bottle or flux pen
Application area: Selective soldering, manual- and repair soldering, dip soldering
Appearance/smell: yellowish to brownish
Solids content: 5.8 Gew.-% (wt.-%)
Density at 20 °C: 0.8 (+/-0.005) g/ml
Acid number: 25–28 mg KOH/g
Activators: di-carboxylic acids, resins
Solvents: short-chain alcohols
Flash point: 12 °C
Durability: 12 months
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The soldering flux, HR/D-110, is an established manual and dip soldering flux which also achieves very good results in special applications such as hot bar reflow soldering. It can be used for all common applications. Due to a higher proportion of solids with a relatively high resin content, it creates soldering-related reliability.

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)
  • Very good residue behaviour (very clean, high SIR)
  • Successful passing of internal test (SIR selective)

Questions about our products?
We will advise you by phone 06123 / 7046-0.