Otto's Original - Quality products since 1901
Soft Soldering

B-300 Flux

Soft-solder flux based on inorganic halogenides, zinc-free
Type 3.1.1.A under ISO 9454

Pictures may differ from the original.

Packaging units:
Net 20 kg canister; additional packaging on request. Our general terms and conditions apply.
Application area: Conventional soft-soldering of iron, copper, and brass materials, universally applicable
Appearance/smell: Colurless to light yellow, liquid
Density at 20 °C: 1.2 g/cm³
Durability: 24 months
Water solubility: Easily
Debris: Must be removed
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Added customer value

  • Very good wetting properties
  • Very good soldering properties
  • Environmentally friendly due to lack of heavy metal
  • Very highly activated
  • Residues easily dissolved in water


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