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Sil-Fos 5 is a silver-copper-phosphorus alloy for copper-copper brazing but can also be used to join brass with an appropriate flux (e.g. Handy Flux, Ultra Flux). It is a more cost effective Ag-Cu-P alloy, though it does not penetrate deep joints easily.

  • Joins CU to CU (phosphorus serves as flux)
  • Joins CU to Brass (flux is recommended)
  • Lower cost alternative to higher silver content Ag-Cu-P alloys
  • Medium flow

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