Superior No. 601 is our most popular general-purpose white silver brazing paste flux. Superior No. 6 contains no Potassium Bifluoride and is favored by jewelers and applications looking for a safer flux. Superior No. 650 is a Fluoride-Free silver brazing flux.
Superior Flux Number
General purpose white brazing flux paste
Rec. Base Metals
Ferrous and non-ferrous alloys, stainless steels, and copper
Rec. Filler Metals
Rec. Temp Ranges
565-870°C / 1050-1600°F
AMS 3410; AWS A5.31-91, Type FB3A; O-F 499, Type B
All Superior Flux silver brazing fluxes are RoHS compliant.
Superior No. 601 is the general-purpose silver brazing flux – an excellent paste flux for ferrous and non-ferrous alloys, stainless steels and copper. It is ideal for use in a wide variety of silver brazing applications: appliances, automotive, dental tools, orthodontia, farm machinery, heat exchanges, heat equipment, maintenance, mining tools, musical instruments, plumbing fixtures, refrigeration and air conditioning, ship repair, steel furniture and welding equipment.
Superior No. 6 silver brazing flux that contains no Potassium Bifluoride, making it ideal for jewelry applications.
Superior No. 650 is a revolutionary fluoride-free silver brazing flux formulated for silver brazing of copper, brass and mild steel.
All Superior white brazing fluxes are water-soluble and ship as non-hazardous products.