Otto's Original - Quality products since 1901


Special Flux for wave-, selective-, hand-soldering
DIN EN-61190-1-1 (acc. J-STD-004) / IEC: REL0
ISO-9454: 1231 (1.2.3.A) NO CLEAN

Packaging units:
5l and 20l
other packaging on request
Application area: Wave-, selective- and manual soldering processes, as well as cable assembly
Appearance/smell: transparent, yellowish - amber liquid
Solids content: 3,8 – 4,2 Gew.-% (wt.-%)
Density at 20 °C: 0,795 (+/- 0,003) g/ml
Acid number: 10 – 12 mg KOH/g
Activators: resin-carboxylic and dicarboxylic acidscomplex
Solvents: short chain alcohols
Flash point: 12 °C
Durability: 12 months
Storage (recommendation): store at 5-25 ° C, dry, sealed
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EO-B-023C is an universally suitable for wave-, selective- and handsoldering of PCBs and complies with specification DIN-EN 61190-1-1: L0 (“NO CLEAN”). Accordingly, it contains organic, halogen-free activating additives with resin in a combination specially tuned to the thermal requirements of the soldering processes. EO-B-023C can be applied by brushing, spraying, dipping etc.. The solidscontent is 4% by weight.
EO-B-023C is totally free from corrosion action.

Additional information on the ingredients (hazardous substances), safe handling,
storage, transport and disposal can be found in the current safety data sheet (SDS,
Instructions for use:
This flux is very versatile. There are good results for manual, wave and selective soldering, as well as for cable assembly / wire tinning. The general rule of applying fluxes applied in principle as low as possible also applies to this product.

Sprayfluxing: If possible, try at first a quantity of 15 – 30 ml/min. and observe the distribution of the flux. After that, correct the quantity. Air-pressure: 18 – 20 l/min.

Preheating: Entering the solder-wave, the temperature on the topside of the pasteboards should be 80 – 110 °C, dependent on type of boards, lay-out etc. – in case of using lead-free solders, preheating temperatures of 100 – 130 °C on the topsides are possible.


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