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Fernox 100g Powerflow Flux is a soft, white paste that is easily applied to joint areas prior to soldering. Designed specifically for the soldering of copper plumbing systems and is suitable for use with a range of metals/alloys. Solder paste flux serves a number of purposes, such as: removing any oxidized metal from the surfaces to be soldered. Sealing out air, preventing further oxidation and improving wetting characteristics of liquid solder by facilitating amalgamation.
