Base: Zinc chloride
Form: colorless to brownish, aqueous solution
Working temperature range: approx. 150 – 400 °C
Density: 1.6 g/cm³
Application: Soft soldering flux for pure tin or tin solders on copper surfaces and for leaded glass
Includes a robust brush for spreading
Ensures clean and strong solder joints

Z-02 soldering flux is ideally suited for preparing surfaces made of copper or copper alloys for soldering or tinning. The soldering flux removes minor impurities and dissolves oxide layers that would cause insufficiently strong solder joints during soldering. The use of soldering flux is therefore almost essential to ensure good solder joint quality. The soldering flux has a corrosive effect and must be rinsed off promptly with water or mordant after the soldering process.

In principle, the soldering flux can be used wherever tin alloys are to be soldered or tinned on surfaces made of copper or copper alloys. In addition, it can also be used in the field of leaded glass.

During processing, effective extraction or fresh air supply, e.g. by ventilation, must be ensured due to the soldering fumes.

You can get the Z-02 soldering flux in an attractive combination with triangular bars made of Sn99.9 (pure tin), SnCu0.7 or SnCu3.

The combination with pure tin (Sn99.9) makes sense, for example, if you want to tin copper pots or similar surfaces.
SnCu0.7 is well suited as an electrical solder, e.g. for dip soldering.
SnCu3 is a popular plumbing solder and is used, among other things, for soldering copper pipes.

Z-02 is not suitable for use on zinc sheets with the Dachdeckerlote SnZn9 and SnZn15; it is best to use Z-04 there.
In the field of body tinning, we also recommend that you use PASTIN 803 pre-tinning paste instead.

If you have any questions about its suitability for your application, please do not hesitate to contact us.

Material: Ammonium chloride (NH₄Cl)
Dimensions: 65x45x38 mm
Melting point or approximate reaction temperature: 338 °C
Ideal for cleaning copper soldering tips during soft soldering work
Suitable for soldering lamps, soldering irons, and larger soldering devices
Removes stubborn oxide layers quickly and reliably

Cleaning soldering tips with sal ammoniac stones ensures better solder joint quality, longer service life of the soldering tips, and saves time through smoother work.

Sal ammoniac stones are made of pressed ammonium chloride and are used to keep copper soldering iron tips clean and functional during soft soldering work. The effect is based on the decomposition of ammonium chloride into ammonia and hydrochloric acid upon contact with a sufficiently hot soldering tip. The released hydrochloric acid dissolves the oxides present on the soldering tip, making it ready for re-tinning.

Before cleaning, the soldering iron should be heated to about 338 °C – preferably a little more. The tip is then drawn over the sal ammoniac stone a few times and then tinned with some new solder. Afterwards, the tip should be cleaned with a damp sponge or similar to remove hydrochloric acid residues in order to prevent corrosion of the tip. Finally, the tip can be polished blank.