Soldering Flux, Water Soluble, Paste, Working Range (Deg. F) All-Weather, Container Type Plastic Jar, Container Size 4 oz, For Use On Copper, Brass, Galvanized Iron, Lead, Zinc, Tin, Silver, Nickel, Mild Steel, Terne Plate, and Malleable Iron, Standards ASTM B813, Mil Spec Mil-F-4995 Type II, NSF 61, NSF/ANSI 61-G, UPC