Soldering paste in accordance with DIN EN 29454-1 1.1.2.C is a medium-active fluxing agent with a paste consistence, based on rosin and organic halogen activator, facilitates soldering copper, silver-plated, galvanized, and nickel-plated elements. It is used for whitening and soldering in radio and telecommunication technology and in the assembly of electrical equipment. Fluxing agent residues after soldering do not cause corrosion on non-ferrous metals and can remain on the welds.

Product used primarily where rosin is not sufficient.