Otto's Original - Quality products since 1901
Soft Soldering


Ready-to-use solder flux paste with leaded solder halogen activated
Type 3.1.2.C under ISO 9454

Pictures may differ from the original.

Packaging units:
300 g tins; additional packaging on request. Our general terms and conditions apply.
Application area: Conventional soft-soldering of stainless steel, iron, copper, and brass materials
Appearance/smell: Metallic, pasty
Debris: Must be removed
Metal alloy: S-Sn40Pb60
Particle size: ≤ 80 μm
Metal portion: ≥ 70 wt%
Flux portion: ≤ 30 wt%
Flux type: 3.1.2.A
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Added customer value

  • Solder flux paste for soft-soldering of iron, copper, and brass materials
  • Good handling, no dripping
  • No special solder feed necessary
  • Segregation by storage is indicated with colour; can be slightly homogenized by stirring
  • Very highly activated
  • Flux remnants are visible under UV light
  • Flux remnants are easily removed


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