It is a pickling paste intended for Steel/Brass/Silver brazing with a great pickling power. The flux residues are eliminated by thermal shock (dipping in cold water) or by brushing. The paste COBOR FLUX 1221 allows a very good adhesion even on a vertical surface. There is neither retention nor profusion, so it provides a good brazing stability while melting.
Homogeneous white paste
The paste COBOR FLUX 1221 is advised for brazing Steel, Brass, Copper alloys with an oxy-acetylic flame and a silver brazing filler metal at temperatures from 500 and 800° C.
The paste flux COBOR 1221 is used by brushing or dipping the pre-heated filler metal rod in the paste
No particular risk Refer to health and safety datasheet before use available on demand