www.pmmag.com/articles/87476-100-soluble-flux
100% Soluble Flux
February 28, 2002

The best water-soluble flux on the market is Solu-Flux from Black Swan Mfg. Co. With a working temperature of 250 degrees F to 520 degrees F, it is safe to use on potable water systems. It can be used on copper, brass, galvanized, tin, zinc and other commonly used metals.
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