Flux for soldering PV209

Flux powder PV209 is designed to work with copper and alloys based on it, stainless steel and other hard alloys.
Soldering is carried out as copper or silver solders of silver, copper, Nickel and their alloys, heat-resistant and hard alloys.
Removes oxide films, prevents their formation during heating, reduces the surface tension of the liquid solder, and protects the surfaces prepared for soldering from the external environment.

The melting temperature is 410–440 With.
Operating temperature600–850 C
Fire-safe.
Flux residues are removed by boiling in water or 10% citric acid solution.

The composition of flux:
B (Boron) - 12,3-13,3%,
F (Fluorine) - 26,7-28,5%,
K (Potassium) - 33,5-36,4%,
O (Oxygen) - 21,8-27,5%.
Manufactured according to GOST duction : RUSSIA

The price is for a package30 gr.