• Cleaning of flux residues

  • Special applications

  • Selective soldering

  • Cable assembling/Wire soldering

  • Manual assembling

  • Wave soldering: foam fluxing

  • Wave soldering: spray fluxing
Water- and alcohol-based flux
Flux for cable assembling
Cleaning agents
Otto's Original - Quality products since 1901


EO-Flux Pen FA-334

Low-solids flux for with halogen-free activators (WEEE/RoHS conformant)
DIN EN61190-1-1: (IEC OR/L0) or type 2.1.3.A under ISO 9454
Packing Units:
Plastic sleeve with pressure metering system with 8 ml volume, available in PE-pouch of 10 pcs. (minimum purchase)
Appearance: colourless to bright yellow, clear liquid
Solids content:3.0 wt% (about 24 g/L)
Density at 20 °C: 0.800 (± 0.003) g/mL
Acid number: 18 mg to 21 mg KOH/g
Activators:carboxylic acids
Solvents:Mixture of monohydric alcohols
Flash point:12 °C

Customer added value

  • Good wetting and evaporation
  • Good soldering properties
  • Broad process window
  • Transport- and storage-safe even in winter
  • Test under ‘house standard’ passed, thus low risk of flux residues
  • Broad application possibilities
  • Easy handling
  • No spilling and dripping of the flux while using
  • Fast and cost-efficient rework
  • Flux with low solids content

The EO Flux-Pen allows spot-on application of flux on PCBs. EO Flux-Pen consists of a cartouche- a special pressure dosing system with felt tip and a closing cap. The flux is kept in the cartouche and is applied with the felt tip. The special pressure dosing system allows thorough, pointed flux-application.

Practice has shown that with proper application, the washing of circuit boards soldered with this flux can be largely dispensed with.

Product overview

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