Otto's Original - Quality products since 1901
Radiator Manufacturing


Flux concentrate based on zinc ammonium chloride
Type 3.1.1.A under ISO 9454

Pictures may differ from the original.

Packaging units:
Net 50 kg canister; additional packaging on request. Our general terms and conditions apply.
Application area: Conventional soft-soldering of iron, copper, and brass materials, cooler construction, heat-exchanger production, fire metallization
Appearance/smell: colourless to light brown, transparent, liquid
ph-value: 4 – 7
Density at 20 °C: 1.8 g/cm³
Durability: 24 months (after date of man.)
Water solubility: easily
Debris: must be removed
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Added customer value

  • Versatilely adaptable to processes through dilution with water
  • Very good wetting properties
  • Very good solder properties even in difficult application areas
  • Very highly activated
  • Residues are easy to remove


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