It is a pickle powder intended for the Steel/Brass/Silver brazing with a great pickling powder. The waste of flux are eliminated by thermal shock (dipping in cold water) or by brushing.
At use, the powder flux 1040 allows a very good adhesion even on a vertical surface. There are neither retention and nor profusion, so it allows a good stability in the brazing during melting.
Dry powder of calibrated granulometry.
The powder flux 1040 is advised for the soudo-brazing of Steel-Brass, Copper-Silver by oxyacethylic flame at temperatures from 600 et 850° C
The powder flux 1040 is used in powder or it can be mixed with water in order to form a paste (50/50 flux/water) or it can be used by dipping the filler metal stick heated in the powder.