- Formulated for tinning solder nozzles on selective soldering machines.
- Ensures uniform solder flow on selective soldering machines.
- Conforms to IPC ANSI J-STD-004, Type INH1.
Description: Superior No. 75 is a water-based, general purpose, inorganic-acid flux specifically effective for tinning solder nozzles on selective soldering machines. The flux contains Zinc Chloride, Ammonium Chloride, and Hydrochloric Acid, making this flux active at room temperature where it begins to clean metals and remove oxides. The flux exerts a strong scavenging action to remove oxide coatings and other impurities from the metal surface.Applications: Superior Flux No. 75 is effective in removing oxide build-up on solder nozzles for effective flow of solder in selective soldering machines. Over time, oxides build up at the top of and along the side of the solder nozzle. When this occurs, the solder no longer flows uniformly up from the nozzle and then down the sides of the solder nozzle barrel. This inconsistent flow causes aberrations in the flow of solder from the nozzle, leading to ineffective or faulty placement of the solder on the PCB. A visual inspection of the flow of solder from the nozzle is usually enough to indicate whether application of No. 75 is needed: if the solder is not flowing straight up and then down the sides of the barrel in an equal and smooth manner, then tinning is needed. Regular and proper tinning of the solder nozzle will lead to effective placement of solder on the PCB and increased longevity of the solder nozzle apparatus. Information provided by Superior Flux |
