Description: Superior No. 70 is a Petrolatum-based soldering paste that contains Zinc Chloride and Ammonium Chloride. The Petrolatum helps protect the solder joint against corrosive attack and the paste form insures that the flux stays put until soldering. Applications: Superior No. 70 is useful on most common metals except Aluminum and Magnesium. It is employed mainly in plumbing and maintenance applications. (No. 76 is available in pound cans, and in 5 lb., 20 lb. and 40 lb. pails.) Information provided by Superior Flux |