Material Notes:
Indalloy Flux #1 is a non-acid, non toxic, Pb-free, amber colored paste flux for use on copper, brass, galvanized iron, lead, zinc, tin, silver, nickel, mild steel, terne plate and malleable iron. Its strong detergent action cleans as it solders.Chloride Content: Contains Ammonium Chloride (No Zinc Chloride)Due to its possible corrosive nature, Indalloy Flux #1 is not recommended for electronics applications.Cleaning: Warm water (< 50°C) and mechanical scrubbingSolder Alloy Compatibility: Indalloy Flux #1 works well with all common soft solders. The chlorine content may cause corrosion of indium based solders.Information provided by the manufacturer, Indium Corporation of America.