SIL-FOS 15 Brazing Alloy - 15% SilverSil Fos 15 Brazing Rods Sil Fos 15 is the preferred alloy for general copper copper brazing; the phosphorous in the Sil Fos family serves as a fluxing agent on coper, so no flux is recommended. Sil Fos 15 can be used with joints where fit up is marginal and is well suited for use in refrigeration applications. Features Joins CU to CU (phosphorus serves as flux) Joins CU to Brass (flux is recommended) Highest joint ductility of entire Sil Fos family
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